Planning method for small production area of flue-cured tobacco treasure Honghua Dajinyuan in southwest tobacco area

Abstract

The invention discloses a planning method for a Southwest tobacco area flue-cured tobacco treasure Honghua Dajinyuan small-producing area. The method comprises the following steps: acquiring daily average temperature data, terrain elevation model data, a soil physicochemical property database and a village-level administrative boundary map of a target area day by day; a daily average temperature spatial distribution diagram of the Honghua Dajinyuan mature period is compiled through thin disc spline function interpolation and an average temperature model; a primary selection suitable zone distribution diagram suitable for Honghua Dajinyuan cultivation is compiled through a linear regression model; screening the primary selection suitable zone distribution map according to soil chloride ions to obtain a potential suitable zone distribution map; compiling a Honghua Dajinyuan production area planning map according to a tobacco planting soil superior product index algorithm model constructed by soil texture, organic matters, pH value, rapidly available potassium and exchangeable magnesium and the potential suitable zone distribution map; and superposing the Honghua Dajinyuan production area planning map and the village-level administrative boundary map to compile a Honghua Dajinyuan small production area planning distribution map, thereby providing a basis for scientific planting of Honghua Dajinyuan, and improving the production level of high-quality and high-end tobacco leaves in China.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of tobacco cultivation, and particularly to a method for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing areas. Background Art

[0002] Honghuadajinyuan is a high-quality flue-cured tobacco variety with prominent sweet and fresh fragrance style, obvious moistening feeling, sufficient aroma quantity, delicate and elegant aroma quality, and less miscellaneous gas. The prominent and irreplaceable light fragrance style characteristics make many cigarette enterprises have a special preference for it, and it has an extremely important position in the production of high-grade cigarettes in China (Xu Xingyang et al., 2020; Jiao Zheheng, 2016). The market demand for the leaves of the special flue-cured tobacco Honghuadajinyuan shows an increasing trend year by year.

[0003] Although the demand for Honghuadajinyuan in the cigarette industry is large, its poor disease resistance and baking quality are its fatal weaknesses (Zeng Jifan, 2004). This variety is susceptible to black shank and brown spot; the leaves turn yellow slowly, making it easy to pick green; baking is difficult, and the yield and output value are relatively low. Since the introduction and promotion of the K326 variety, its planting area has decreased sharply (Zhang Shutang, 2007). Although the purchase price is about 20% higher than that of ordinary varieties, tobacco farmers do not like to grow this variety, resulting in a situation where the development speed of the Honghuadajinyuan variety has lagged significantly behind the demand of the cigarette industry for many years (Xie Fen, 2014). However, in a small number of tobacco-growing areas, according to the characteristics of this variety, cultivation experiences have been explored and summarized, resulting in relatively high yields and output values, approaching or even exceeding those of the K326 variety. There are such examples in Yunnan, Guizhou, Sichuan, and Tibet (Xie Fen et al., 2014; Fan Zhiyong et al., 2021; Chen Peng et al., 2011; Yi Nianyou et al., 1999; Yang Liu et al., 2018; Xu Lun et al., 2010; Zhong Guohui et al., 2000). This shows that as long as a good ecological soil environment for the tobacco-growing area is selected, the yield and output value advantages of the Honghuadajinyuan variety can be exerted. At present, although the national planting area of Honghuadajinyuan (about 700,000 mu) ranks fourth, it is only 1 / 10 of that of Yunyan 87 (about 7 million mu), which ranks first (Ma Wenguang et al., 2017). If the planting area of this variety is to be expanded, which tobacco-growing areas should it be arranged in? From the current production situation of Honghuadajinyuan, there is still a large room for expansion in both quantity and quality. Especially in the southwestern tobacco-growing areas, the topography and landforms are complex, and the climate conditions vary significantly. In the past ecological adaptability evaluations of Honghuadajinyuan, the spatial resolution of the zoning was usually from the county level to large regions within the province (Zhou Jinxian, 2006; Xie Xiuqing, 1995), which does not meet the needs of refined small production area planning. Most of the main production areas of Honghuadajinyuan are located in hilly mountainous areas, with complex topography and landforms, and meteorological conditions have a great impact on the quality of tobacco leaves. Although there have been studies on the balanced fertilization plan for Honghuadajinyuan, considering factors such as terrain (divided into paddy fields and dry land), climate factors, and previous crops, it is still an integration of scattered data, unable to integrate soil factors, and no production area planning distribution map has been compiled, unable to intuitively and comprehensively reflect the geographical spatial distribution characteristic information of the Honghuadajinyuan production area. Therefore, in the aspect of the appropriate planting plan for the high-quality tobacco Honghuadajinyuan in the southwestern tobacco-growing areas, it is urgent to carry out comprehensive studies on the climate and soil suitability of Honghuadajinyuan, and then construct a more refined small production area (administrative village level) plan to provide a basis for expanding the large-scale production of the high-quality tobacco Honghuadajinyuan and optimizing the tobacco industry structure, and to meet the market development strategy of the tobacco industry and the demand for high-quality tobacco leaf raw materials with characteristics. Summary of the Invention

[0004] An embodiment of the present invention provides a method for planning small production areas of high-quality tobacco Honghuadajinyuan in the southwestern tobacco-growing areas, comprehensively referring to various influencing factors to accurately and conveniently achieve the planning of small production areas of high-quality tobacco Honghuadajinyuan in the southwestern tobacco-growing areas, improving the accuracy and efficiency of the planning of small production areas of high-quality tobacco Honghuadajinyuan in the southwestern tobacco-growing areas.

[0005] In a first aspect, an embodiment of the present invention provides a method for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing region, including:

[0006] Obtain the daily average temperature data, topographic elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area;

[0007] Through thin plate spline function interpolation and the established average temperature model under complex terrain, compile the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan, and through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves, compile the preliminary suitable zone distribution map suitable for the cultivation of Honghuadajinyuan;

[0008] According to the soil chloride ions in the soil physical and chemical property database, screen the preliminary suitable zone distribution map to obtain the potential suitable zone distribution map, and according to the tobacco-growing soil high-quality product index algorithm model constructed by the soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map, compile the production area planning map of Honghuadajinyuan;

[0009] Perform spatial overlay of the production area planning map of Honghuadajinyuan and the village-level administrative boundary map, and compile the small production area planning distribution map of Honghuadajinyuan.

[0010] In a second aspect, an embodiment of the present invention further provides a device for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing region. The device includes:

[0011] A data acquisition module for obtaining the daily average temperature data, topographic elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area;

[0012] A preliminary suitable zone distribution map compilation module for compiling the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan through thin plate spline function interpolation and the established average temperature model under complex terrain, and compiling the preliminary suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves;

[0013] A production area planning map compilation module for Honghuadajinyuan, which screens the preliminary suitable zone distribution map according to the soil chloride ions in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compiles the production area planning map of Honghuadajinyuan according to the tobacco-growing soil high-quality product index algorithm model constructed by the soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map;

[0014] The module for compiling the distribution map of small production areas of Honghuadajinyuan is used to spatially overlay the production area planning map of Honghuadajinyuan and the village-level administrative boundary map to compile the distribution map of small production areas of Honghuadajinyuan.

[0015] Thirdly, an embodiment of the present invention further provides an electronic device, which includes:

[0016] One or more processors;

[0017] A memory for storing one or more programs;

[0018] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for planning small production areas of Honghuadajinyuan, a rare and precious variety of flue-cured tobacco in the southwestern tobacco-growing area, provided in any embodiment of the present invention.

[0019] Fourthly, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, it implements the method for planning small production areas of Honghuadajinyuan, a rare and precious variety of flue-cured tobacco in the southwestern tobacco-growing area, provided in any embodiment of the present invention.

[0020] Fifthly, an embodiment of the present invention provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the method for planning small production areas of Honghuadajinyuan, a rare and precious variety of flue-cured tobacco in the southwestern tobacco-growing area, provided in any embodiment of the present invention.

[0021] The technical solution of the embodiment of the present invention obtains the daily average temperature data, terrain elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area; compiles the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan through thin plate spline function interpolation and the established average temperature model under complex terrain, and compiles the preliminary selection suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves; screens the preliminary selection suitable zone distribution map according to the soil chloride ion in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compiles the production area planning map of Honghuadajinyuan according to the tobacco-growing soil high-quality product index algorithm model constructed by the soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map; spatially overlays the production area planning map of Honghuadajinyuan and the village-level administrative boundary map to compile the distribution map of small production areas of Honghuadajinyuan. The distribution map of small production areas of Honghuadajinyuan can provide a basis for the scientific planting of Honghuadajinyuan, improve the production level of high-quality and high-end tobacco leaves in China, and promote the high-quality development of the tobacco industry in China.

[0022] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understandable through the following description. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a flowchart of a method for planning small production areas of the premium flue-cured tobacco Honghuadajinyuan in the southwestern tobacco-growing area provided in Embodiment 1 of the present invention;

[0025] Figure 2 It is a spatial distribution map of the initially selected suitable zone grades related to Embodiment 1 of the present invention;

[0026] Figure 3 It is a planning map of the Honghuadajinyuan production area related to Embodiment 1 of the present invention;

[0027] Figure 4 It is a schematic structural diagram of a device for planning small production areas of the premium flue-cured tobacco Honghuadajinyuan in the southwestern tobacco-growing area provided in Embodiment 2 of the present invention;

[0028] Figure 5 It is a schematic structural diagram of an electronic device for implementing the method for planning small production areas of the premium flue-cured tobacco Honghuadajinyuan in the southwestern tobacco-growing area of the embodiments of the present invention. Detailed Embodiments

[0029] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] Embodiment 1

[0032] Figure 1 A flowchart of a method for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area is provided for Embodiment 1 of the present invention. This embodiment is applicable to the situation of fine-grained small production area planning for the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area. This method can be executed by a device for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area. The device for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area can be implemented in the form of hardware and / or software, and the device for planning small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area can be configured in an electronic device. As Figure 1 shown, the method includes:

[0033] S110. Obtain the daily average temperature data, terrain elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area.

[0034] Among them, the target area may refer to the southwestern tobacco-growing area. The daily average temperature data is for all meteorological stations in the target area.

[0035] Specifically, the terrain elevation model data comes from Digital Elevation Model (DEM) data, downloaded from the Geospatial Data Cloud, with a resolution of 30m×30m; based on this, a geographic information database including a vector database and a raster database in the target area is established. The 1:50,000 digital soil distribution map and soil attribute data are mainly used to collect soil survey and monitoring data in the target area, and a soil physical and chemical property database is built. The 1:50,000 digital soil distribution map is built by digitizing the paper soil map. According to the longitude and latitude coordinates of the sampling points, the soil physical and chemical property data is spatially associated with the 1:50,000 digital soil distribution map of the target area through ArcGIS software, and a soil physical and chemical property data distribution map library including soil texture, organic matter, soil acidity and alkalinity, exchangeable magnesium, and soil chloride is built.

[0036] Exemplarily, taking Yuxi City, Yunnan Province as an example, using the obtained daily average temperature data, topographic elevation model data, soil physical and chemical property database, and village-level administrative boundary map of Yuxi City, Yunnan Province, a basic data and soil spatial distribution map of the flue-cured tobacco planting area in Yuxi City, Yunnan Province are established, including: the distribution map of the flue-cured tobacco planting area in Yuxi City, the distribution of township boundaries in Yuxi City, the DEM data of Yuxi City, the 1:50,000 soil texture distribution map of Yuxi City, the 1:50,000 soil organic matter distribution map of the tobacco-growing area in Yuxi in 2021, the 1:50,000 soil pH distribution map of Yuxi in 2021, the 1:50,000 soil exchangeable magnesium distribution map of the tobacco-growing area in Yuxi in 2021, and the 1:50,000 chloride ion content distribution map of the tobacco-growing area in Yuxi in 2021.

[0037] On the basis of the above technical solutions, by sorting out and comprehensively analyzing the literature data and combining the research results of our team, the daily average temperature is selected as the key index affecting the quality of Honghuadajinyuan among the climate factors.

[0038] Exemplarily, based on the daily maximum (minimum) temperature and other data observed at 860 automatic weather stations within 40 km of Yuxi City and its surrounding areas, the data integrity is good and it has passed strict quality control. Through significance tests, the correlation between climate factors at different growth stages of flue-cured tobacco and the smoking scores of tobacco leaves is obtained to illustrate the impact of meteorological factors on the quality of tobacco leaves. It can be seen that the daily average temperature is the dominant factor at different growth stages. Table 1 gives an example of the key climate factors at different growth stages of Yuxi flue-cured tobacco as follows:

[0039] Table 1 Key climate factors at different growth stages of Yuxi flue-cured tobacco

[0040]

[0041] Combined with the actual situation of the Yuxi tobacco-growing area, the scoring principles for key climate factors at different growth stages are determined. Assuming that all climate factors in Qianwei Village, Qianwei Town, Jiangchuan County are the best, the scores of all climate factors are assigned 100, and the scores of climate factors in other tobacco-growing areas are based on Qianwei Village as a reference, and their specific scores are determined according to the difference ratio from Qianwei Village. The weights of climate factors at different growth stages are determined: based on the magnitude of the regression coefficients of different dominant factors at each growth stage and the proportion of their sum in the total regression coefficient, the weights of each climate factor are determined (Table 2). Table 2 gives an example of the weights of key climate factors at different growth stages as follows:

[0042] Table 2 Weights of key climate factors at different growth stages

[0043]

[0044] In summary, based on a full understanding of the local flue-cured tobacco climate characteristics, the research results of our team show that the daily average temperature during the mature period of flue-cured tobacco (from July 21st to September 10th) (the sum of the daily average temperatures during this period divided by the number of days) is the key meteorological index affecting the quality of Honghuadajinyuan. That is, the daily average temperature during the mature period of flue-cured tobacco (from July 21st to September 10th) is determined as the key index.

[0045] S120. Through thin plate spline function interpolation and the established average temperature model under complex terrain, compile the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan, and through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves, compile the preliminary suitable zone distribution map for the cultivation of Honghuadajinyuan.

[0046] Among them, the process of establishing the average temperature model under complex terrain includes: taking days as the time unit, and using the terrain elevation model data of the target area, the longitude, latitude and daily average temperature data of all meteorological stations as data sources to establish the average temperature model under complex terrain. The spatial distribution map of the daily average temperature can refer to a distribution map with grids as one area and the daily average temperature of each area marked. The preliminary suitable zone distribution map can refer to a distribution map of a preset suitable level screened based on the daily average temperature.

[0047] Specifically, through thin plate spline function interpolation and the established average temperature model under complex terrain, compile the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan. Through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves, determine the preset assignment corresponding to each type of suitable zone. Assign values to the daily average temperatures of each area in the spatial distribution map of the daily average temperature to obtain the assignment results. Compare the assignment results with the preset assignments to determine the suitable zone type corresponding to each assignment result, so as to compile the preliminary suitable zone distribution map for the cultivation of Honghuadajinyuan.

[0048] Among them, the suitable zones include: excellent adaptation zone, good suitability zone, medium suitability zone and unsuitable zone.

[0049] Specifically, use the spatial interpolation software (ANUSPLIN) based on spline function to perform optimal spatial interpolation, and calculate the spatial distribution map of the daily average temperature of each day during the mature period of flue-cured tobacco (from July 21st to September 10th) (equivalent to the spatial distribution map of the daily average temperature) through grid calculation. Its core algorithm is the local thin plate spline function interpolation model, and the theoretical statistical model is as follows:

[0050] z i =f(x i )+ε i (i=1,...,n)

[0051] Among them, x iRepresents geographical location information, such as longitude, latitude, altitude, slope, and aspect; ε i is a random error covariance matrix with an expected value of 0. z represents temperature.

[0052] Assume ε i = Vσ 2 , where V is a known n×n positive definite matrix. The function f is obtained through least squares, i.e., the least squares estimate of (z - f) T V -1 (z - f)+ρJ m (f).

[0053] where z = (z1,..., z n ) T , f = (f1,..., f n ) T , T represents the transpose matrix f i = f(x i ). J m (f) is the integral of the m-th partial derivative of the spline function f, i.e., the roughness measure function; ρ is a positive smoothing parameter determined by minimizing the prediction error of the fitted surface through generalized cross-validation. The interpolation effect of the daily average temperature during the mature period of Honghuadajinyuan is evaluated by the root mean square error and the mean absolute error, and a spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan in the tobacco-growing area is compiled. The comprehensive quality data of tobacco leaves in recent years are obtained through the membership function, and a linear regression prediction equation (equivalent to a linear regression model) of the daily average temperature during the mature period of flue-cured tobacco (from July 21st to September 10th) is established. Taking the daily average temperature during the mature period of flue-cured tobacco as the classification index, the flue-cured tobacco climate is divided into four types: excellent suitable zone, good suitable zone, medium suitable zone, and unsuitable zone; the excellent suitable zone for the daily average temperature during the mature period of flue-cured tobacco is 19.1 - 20.5 °C, the good suitable zone is 20.5 - 21.6 °C, and the medium suitable zone is 17.7 - 19.1 °C. The unsuitable zone can be further divided into two zones: the zone with too high daily average temperature and the zone with too low daily average temperature during the mature period of flue-cured tobacco. The former is > 21.6 °C, and the latter is < 17.7 °C. Based on this, a scoring standard for the quality of Honghuadajinyuan tobacco leaves corresponding to the daily average temperature grade during the mature period of flue-cured tobacco is formulated (Table 3). Table 3 gives an example of the assignment of the daily average temperature grade during the mature period of flue-cured tobacco, as follows:

[0054] Table 3 Assignment of the daily average temperature grade during the mature period of flue-cured tobacco

[0055]

[0056] Using the spatial distribution map of the daily average temperature at the mature stage of Honghuadajinyuan tobacco in the tobacco-growing areas compiled previously as the base map, and adopting the classification criteria in Table 3, a spatial distribution map of the preliminary suitable zone grades in the target area of Honghuadajinyuan was compiled. Based on this, the areas with a daily average temperature assignment ≥70 during the mature stage of flue-cured tobacco were selected as the preliminary suitable tobacco-growing areas, and the preliminary suitable zone distribution map was obtained.

[0057] Exemplarily, taking Yuxi City, Yunnan Province as an example, combined with the three-dimensional geographical spatial information in the terrain elevation model data, an average temperature model of surface fitting with longitude, latitude, altitude, slope and aspect as independent variables was constructed, and a daily average temperature gridded data product with a horizontal resolution of 90m×90m in Yuxi City was generated through the local thin plate spline function interpolation model. According to the daily average temperature during the mature stage of flue-cured tobacco (from July 21st to September 10th) obtained above, which is the key index, the daily average temperature during this period was calculated through the raster calculator. Combining with the historical comprehensive quality data of tobacco leaves, a linear regression relationship was established between them and the daily average temperature during this period. The daily average temperature during the mature stage was divided into different grades, and based on this, it was divided into four flue-cured tobacco climate types: excellent suitable zone, good suitable zone, medium suitable zone and unsuitable zone; the excellent suitable zone for the daily average temperature during the mature stage of flue-cured tobacco is 19.1 - 20.5°C, the good suitable zone is 20.5 - 21.6°C, and the medium suitable zone is 17.7 - 19.1°C. The unsuitable zone can be further divided into 2 zones: the zone with too high daily average temperature and the zone with too low daily average temperature during the mature stage of flue-cured tobacco. The former is >21.6°C, and the latter is <17.7°C. The areas with a daily average temperature assignment ≥70 during the mature stage of flue-cured tobacco were selected as the tobacco-growing areas, and based on this, a spatial distribution map of the preliminary suitable zone grades in the target area of Honghuadajinyuan was compiled ( Figure 2 ). Figure 2 An example of a spatial distribution map of the preliminary suitable zone grades is given. In the spatial distribution map of the preliminary suitable zone grades of flue-cured tobacco, the excellent suitable zone, good suitable zone and medium suitable zone were selected and combined to obtain the preliminary suitable zone distribution map.

[0058] S130. According to the soil chloride ions in the soil physical and chemical property database, the preliminary suitable zone distribution map was screened to obtain the potential suitable zone distribution map, and based on the tobacco-growing soil high-quality product index algorithm model constructed according to the soil texture, organic matter, soil acidity and alkalinity, available potassium and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map, the production area planning map of Honghuadajinyuan was compiled.

[0059] Among them, the potential suitable zone distribution map may refer to the regional distribution map that meets the soil chloride ion content requirements on the basis of the preliminary suitable zone distribution map. The tobacco-growing soil high-quality product index algorithm model can be used to calculate the soil high-quality product index TSHQI value. The production area planning map of Honghuadajinyuan may refer to the regional distribution map that meets the requirements of soil texture, organic matter, soil acidity and alkalinity, available potassium and exchangeable magnesium on the basis of the potential suitable zone distribution map.

[0060] Specifically, according to the soil chloride ion and soil chloride ion critical threshold in the soil physical and chemical properties database, the areas in the preliminary suitable zone distribution map where the soil chloride ion content is greater than the soil chloride ion critical threshold are filtered, and the areas in the preliminary suitable zone distribution map where the soil chloride ion content is less than or equal to the soil chloride ion critical threshold are retained to obtain the potential suitable zone distribution map. The constructed tobacco planting soil quality index algorithm model is used to perform weighted summation calculations on the soil texture, organic matter, pH, available potassium and exchangeable magnesium in each area of ​​the potential suitable zone distribution map to obtain the soil quality index corresponding to each area; according to the preset index grading standard and the soil quality index, the planting grade corresponding to each area is determined to compile the Honghua Dajinyuan production area planning map.

[0061] Among them, the critical threshold of soil chloride ions is 50 mg / kg. The soil quality index can be used to indicate the comprehensive quality of soil texture, organic matter, pH, available potassium and exchangeable magnesium in a certain area. The preset index grading standard can refer to the preset soil quality index interval corresponding to each planting grade. The planting grades can include first-grade to fifth-grade land.

[0062] Exemplarily, in the previous preliminary suitable zone grade spatial distribution map, the superior suitable zone, good suitable zone, and medium suitable zone are selected and merged into the preliminary suitable zone distribution map. The soil quality index grade zoning will be carried out within the scope of the preliminary suitable zone distribution map. Taking the soil chloride ion content as the division standard, the preliminary suitable zone of Honghua Dajinyuan is further divided into two categories: potential suitable areas and unsuitable areas according to the soil chloride ion content (threshold is 50mg / kg). If the soil chloride ion content>50mg / kg, the tobacco area (region) is judged to be an unsuitable area, which is not suitable for planting Honghua Dajinyuan varieties. The tobacco soil quality index is directly assigned to 0, and other soil indicators are not considered. If the soil chloride ion content is ≤50mg / kg, it is judged by the flue-cured tobacco soil quality index model (TSHQI), and the calculation formula is as follows:

[0063] TSHQI=R1×Int(a1)+R2×Int(a2)+R3×Int(a3)+R4×Int(a4)+R5×Int(a5);

[0064] Among them, R1 is the weight coefficient of soil texture, Int(a1) is the value of soil texture; R2 is the weight coefficient of soil organic matter, Int(a2) is the value of soil organic matter; R3 is the weight coefficient of soil pH, Int(a3) is the value of soil pH; R4 is the weight coefficient of soil available potassium, Int(a4) is the value of soil available potassium; R5 is the weight coefficient of soil exchangeable magnesium, Int(a5) is the value of soil exchangeable magnesium. The weights and values ​​of each indicator are shown in Table 4. Table 5 gives an example of the grading and value assignment of each participating indicator of the soil quality index of a red flower Dajinyuan variety of flue-cured tobacco.

[0065] Table 4 Evaluation indicators and weights of tobacco-growing soil quality index model

[0066]

[0067] Table 5 Grading and value assignment of each evaluation index of soil quality index of Honghua Dajinyuan flue-cured tobacco variety

[0068]

[0069]

[0070] According to the spatial distribution map of soil texture type, soil organic matter, pH, available potassium, and exchangeable magnesium, the TSHQI algorithm model was run in the spatial operation module of the ArcGIS system to calculate the TSHQI field value of the target area, and then spatially superimposed with the distribution map of the potential suitable area of ​​Honghua Dajinyuan, and further obtained the production area planning map of the flue-cured tobacco treasure Honghua Dajinyuan in the southwestern tobacco area at different levels. The TSHQI grading standard and zoning standard are: first-class land (TSHQI>90), second-class land (TSHQI=90~80), third-class land (TSHQI=80~70), fourth-class land (TSHQI=70~60), and fifth-class land (TSHQI<60), so that the spatial distribution map of soil TSHQI level in the southwestern tobacco area can be compiled. According to the research results of the patent application team, first- and second-class land are suitable for growing the Honghua Dajinyuan variety, third-class land is barely suitable, and fourth- and fifth-class land are not suitable for growing. Based on this, a production area planning map of the Honghua Dajinyuan, a precious flue-cured tobacco variety in the southwest tobacco region, can be compiled.

[0071] For example, taking Yuxi City in Yunnan Province as an example, the tobacco soil quality index TSHQI value of the target tobacco-growing area (excellent suitable zone, good suitable zone, and medium suitable zone) is calculated in the ArcGIS system. The specific implementation process is to add the SHQI field to the soil physical and chemical properties database of the GIS system, and run the above TSHQI algorithm model in the spatial operation module. The running result is the TSHQI value, and it is divided into 5 levels: "first-class land" (TSHQI>90), "second-class land" (TSHQI=90~80), "third-class land" (TSHQI=80~70), "fourth-class land" (TSHQI=70~60), "fifth-class land" (TSHQI<60), which can be used to compile a planning map of the safflower Dajinyuan production area in Yuxi City, such as Figure 3 shown.

[0072] S140. Spatially superimpose the Honghua Dajinyuan production area planning map with the village-level administrative boundary map to compile a Honghua Dajinyuan small production area planning distribution map.

[0073] Specifically, the previously compiled planning map of the premium Honghuadajinyuan tobacco-growing area in the southwestern tobacco-growing region is spatially overlaid with the village administrative boundary map to compile the planning distribution map of the small Honghuadajinyuan production areas (at the administrative village level).

[0074] Exemplarily, taking Yuxi City, Yunnan Province as an example, according to the research results of the patent application team, the "first-class land" and "second-class land" are suitable for growing the Honghuadajinyuan variety, the "third-class land" is marginally suitable, and the "fourth-class land" and "fifth-class land" are not suitable for cultivation. The spatial distribution map of the TSHQI grades of the soil in the suitable tobacco-growing areas of Yuxi City (equivalent to the planning map of the Honghuadajinyuan production area) is spatially overlaid and analyzed with the village administrative boundary map to compile the planning distribution map of the small Honghuadajinyuan production areas (at the administrative village level) in Yuxi City (equivalent to the planning distribution map of the small Honghuadajinyuan production areas). Based on this map, through spatial statistical analysis, the proportion of the area of the TSHQI grades of the soil in each administrative village in the tobacco-growing area is obtained. For example, the proportions of the area of the TSHQI grades of the soil in 3 representative villages in Luju Town, Chengjiang City and 4 representative villages in Xiaojie Sub-district, Eshan County of Yuxi City are shown in Table 6 and Table 7 respectively.

[0075] Table 6 Distribution of the excellent product index grades of the tobacco-growing soil in the tobacco-growing area of Luju Town, Chengjiang City, Yuxi City (%)

[0076] Village First-class land Second-class land Third-class land Fourth-class land Fifth-class land Unsuitable land Area (mu) Shangba Village 0.00 52.22 18.56 0.01 26.86 2.36 10700 Zhongba Village 0.00 32.22 38.02 3.52 26.24 0.00 4100 Xiaba Village 0.00 7.51 33.62 0.00 58.87 0.00 2200

[0077] Table 7 Distribution of the excellent product index grades of the tobacco-growing soil in the tobacco-growing area of Xiaojie Sub-district, Eshan County, Yuxi City (%)

[0078] Village First-class land Second-class land Third-class land Fourth-class land Fifth-class land Unsuitable land Area (mu) Youyi Village 47.02 0.00 6.85 6.70 0.00 39.44 2400 Pengzu Village 85.65 12.14 1.05 1.16 0.00 0.00 12500 Yulaijiu Village 78.61 16.49 2.32 2.59 0.00 0.00 6600 Ledejiu Village 74.98 0.00 24.96 0.00 0.06 0.00 3000

[0079] Table 6 shows the distribution characteristics of the excellent product index grades of the tobacco-growing soil in 3 representative villages in Luju Town, Chengjiang City, Yuxi City. As follows, in Xiaba Village, the area of the "fifth-class land" unsuitable for growing Honghuadajinyuan accounts for 58.87%, and the sum of the areas of the "first-class land" and "second-class land" suitable for growing only accounts for 7.51%. Therefore, it can be determined that Xiaba is not suitable for growing Honghuadajinyuan. In 2023, the Honghuadajinyuan variety was planted in this village, and the result was that the tobacco root and stem diseases were very serious, and the yield and quality of the tobacco leaves were both low, and it was not successful. Table 7 shows the distribution characteristics of the excellent product index grades of the tobacco-growing soil in 4 representative villages in Xiaojie Sub-district, Eshan County, Yuxi City. For example, in Yulaijiu Village, the "first-class land" and "second-class land" suitable for growing Honghuadajinyuan are the main ones, and the area accounts for 95.1%. Therefore, it can be determined that Yulaijiu Village is suitable for growing Honghuadajinyuan. In 2024, 3,000 mu of the Honghuadajinyuan variety was planted in this village, and the result was that the tobacco root and stem diseases were relatively light, and the yield and quality of the tobacco leaves were both relatively good, and it was successful. The examples of these two villages prove that the implementation of this patent has achieved good results and will play a greater role in the future.

[0080] The technical solution of the embodiment of the present invention includes obtaining the daily average temperature data, terrain elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area; through thin plate spline function interpolation and the established average temperature model under complex terrain, compiling the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan, and through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves, compiling the preliminary selection suitable zone distribution map suitable for the cultivation of Honghuadajinyuan; screening the preliminary selection suitable zone distribution map according to the soil chloride in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compiling the production area planning map of Honghuadajinyuan according to the tobacco-growing soil high-quality product index algorithm model and the potential suitable zone distribution map constructed by soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database; performing spatial overlay on the production area planning map of Honghuadajinyuan and the village-level administrative boundary map to compile the small production area planning distribution map of Honghuadajinyuan. The small production area planning distribution map of Honghuadajinyuan can provide a basis for the scientific cultivation of Honghuadajinyuan, improve the production level of high-quality and high-end tobacco leaves in China, and promote the high-quality development of the tobacco industry in China.

[0081] Based on the above technical solution, research literature shows that there is a close correlation between altitude and temperature. To achieve low-cost and efficient prediction goals, this patent proposes that altitude can be used as a concise indicator. Under the condition of lacking the spatial distribution map of detailed regional climate indicators, altitude can be used to replace the preliminary selection suitable zone indicator for flue-cured tobacco. The altitude of the excellent suitable zone is approximately 1800m - 2000m, the good suitable zone is approximately 1600m - 1800m, and the medium suitable zone is 2000m - 2200m. The unsuitable zone can be further divided into 2 zones: the altitude of the zone with too high daily average temperature during the mature period of flue-cured tobacco (from July 21st to September 10th) is approximately <1600m, and the zone with too low temperature is approximately >2200m.

[0082] The following is an embodiment of the small production area planning device for the precious tobacco variety Honghuadajinyuan in the southwestern tobacco-growing area provided by the embodiment of the present invention. This device and the small production area planning method for the precious tobacco variety Honghuadajinyuan in the southwestern tobacco-growing area in the above embodiments belong to the same inventive concept. For the details not described in detail in the embodiment of the small production area planning device for the precious tobacco variety Honghuadajinyuan in the southwestern tobacco-growing area, reference can be made to the embodiment of the small production area planning method for the precious tobacco variety Honghuadajinyuan in the southwestern tobacco-growing area.

[0083] Embodiment 2

[0084] Figure 4 This is a structural schematic diagram of a small production area planning device for the precious tobacco variety Honghuadajinyuan in the southwestern tobacco-growing area provided by the second embodiment of the present invention. As Figure 4 shown, the device includes: a data acquisition module 410, a preliminary selection suitable zone distribution map compilation module 420, a production area planning map compilation module 430 for Honghuadajinyuan, and a small production area planning distribution map compilation module 440.

[0085] Among them, the data acquisition module 410 is used to acquire the daily average temperature data, topographic elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area; the preliminary selection suitable zone distribution map compilation module 420 is used to compile the spatial distribution map of the daily average temperature during the maturity period of Honghuadajinyuan through thin plate spline function interpolation and the established average temperature model under complex terrain, and compile the preliminary selection suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves; the Honghuadajinyuan production area planning map compilation module 430 is used to screen the preliminary selection suitable zone distribution map according to the soil chloride ion in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compile the Honghuadajinyuan production area planning map according to the tobacco-growing soil high-quality product index algorithm model and the potential suitable zone distribution map constructed by soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database; the Honghuadajinyuan small production area planning distribution map compilation module 440 is used to perform spatial overlay of the Honghuadajinyuan production area planning map and the village-level administrative boundary map to compile the Honghuadajinyuan small production area planning distribution map.

[0086] The technical solution of the embodiment of the present invention is to acquire the daily average temperature data, topographic elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area; compile the spatial distribution map of the daily average temperature during the maturity period of Honghuadajinyuan through thin plate spline function interpolation and the established average temperature model under complex terrain, and compile the preliminary selection suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves; screen the preliminary selection suitable zone distribution map according to the soil chloride ion in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compile the Honghuadajinyuan production area planning map according to the tobacco-growing soil high-quality product index algorithm model and the potential suitable zone distribution map constructed by soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database; perform spatial overlay of the Honghuadajinyuan production area planning map and the village-level administrative boundary map to compile the Honghuadajinyuan small production area planning distribution map. The Honghuadajinyuan small production area planning distribution map can provide a basis for the scientific planting of Honghuadajinyuan, improve the production level of high-quality and high-end tobacco leaves in China, and promote the high-quality development of China's tobacco industry.

[0087] On the basis of the above technical solution, the daily average temperature data is that of all meteorological station sites in the target area.

[0088] On the basis of the above technical solution, the device further includes:

[0089] The average temperature model establishment module is used to establish an average temperature model under complex terrain with days as the time unit and the terrain elevation model data of the target area and the longitude and latitude and daily average temperature data of all meteorological stations as data sources.

[0090] On the basis of the above technical scheme, the preliminary suitable zone distribution map preparation module 420 is specifically used for: determining the preset value corresponding to each type of suitable zone by establishing a daily average temperature spatial distribution map and a linear regression model of the comprehensive quality of tobacco leaves; assigning a value to the daily average temperature of each area in the daily average temperature spatial distribution map to obtain an assignment result; determining the suitable zone type corresponding to each assignment result based on the comparison between the assignment result and the preset assignment, so as to prepare a preliminary suitable zone distribution map suitable for the cultivation of safflower Dajinyuan.

[0091] On the basis of the above technical scheme, the Honghua Dajinyuan production area planning map preparation module 430 is specifically used for: filtering the areas in the preliminary suitable zone distribution map where the soil chloride ion content is greater than the soil chloride ion critical threshold according to the soil chloride ions and the soil chloride ion critical threshold in the soil physical and chemical properties database, and retaining the areas in the preliminary suitable zone distribution map where the soil chloride ion content is less than or equal to the soil chloride ion critical threshold, to obtain a potential suitable zone distribution map.

[0092] On the basis of the above technical scheme, the safflower Dajinyuan production area planning map preparation module 430 is also specifically used for: using the constructed tobacco planting soil quality index algorithm model to perform weighted sum calculations on the soil texture, organic matter, pH, available potassium and exchangeable magnesium in each area in the potential suitable zone distribution map, to obtain the soil quality index corresponding to each area; according to the preset index grading standard and the soil quality index, determine the planting grade corresponding to each area to prepare the safflower Dajinyuan production area planning map.

[0093] The device for planning small production areas of the precious safflower and Dajinyuan flue-cured tobacco in the southwestern tobacco region provided by the embodiment of the present invention can execute the method for planning small production areas of the precious safflower and Dajinyuan flue-cured tobacco in the southwestern tobacco region provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method for planning small production areas of the precious safflower and Dajinyuan flue-cured tobacco in the southwestern tobacco region.

[0094] It is worth noting that in the above-mentioned embodiment of the small-scale production area planning of the precious red flower Dajinyuan flue-cured tobacco in the southwestern tobacco region, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0095] Embodiment 3

[0096] Figure 5The structural schematic diagram of an electronic device 10 that can be used to implement the embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0097] As Figure 5 shown, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc. The memory stores a computer program executable by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0098] Multiple components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0099] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the planning method for the small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area.

[0100] In some embodiments, the planning method for the small production areas of the premium flue-cured tobacco Honghuadajinyuan in the southwestern tobacco-growing region can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the planning method for the small production areas of the premium flue-cured tobacco Honghuadajinyuan in the southwestern tobacco-growing region described above can be executed. Alternatively, in other embodiments, the processor 11 can be configured to execute the planning method for the small production areas of the premium flue-cured tobacco Honghuadajinyuan in the southwestern tobacco-growing region by any other suitable means (e.g., by means of firmware).

[0101] The various embodiments of the systems and techniques described above in this document can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a dedicated or general-purpose programmable processor that receives data and instructions from a storage system, at least one input device, and at least one output device, and transmits the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0102] The computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processors of general-purpose computers, special-purpose computers, or other programmable data processing devices, such that when the computer programs are executed by the processors, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer programs can be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0103] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0104] In order to provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0105] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local area network (LAN), wide area network (WAN), blockchain network, and the Internet.

[0106] A computing system may include a client and a server. The client and the server are generally far from each other and usually interact via a communication network. The relationship between the client and the server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, and solves the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0107] An embodiment of the present invention also provides a computer program product, including a computer program which, when executed by a processor, implements the planning method for small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area provided in any embodiment of the present application.

[0108] In the process of implementing the computer program product, computer program code for performing the operations of the present invention can be written in one or more programming languages or combinations thereof. The programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, executed as an independent software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network - including a local area network (LAN) or a wide area network (WAN) - or can be connected to an external computer (for example, by using an Internet service provider to connect through the Internet). This program product and the planning method for small production areas of the precious Honghuadajinyuan flue-cured tobacco disclosed in each embodiment of the present application belong to the same inventive concept, and thus will not be elaborated herein.

[0109] It should be understood that various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is imposed herein.

[0110] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A planning method for small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing area, characterized in that, Including: Obtaining the daily average temperature data, topographic elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area; Compiling the spatial distribution map of the daily average temperature during the maturity period of Honghuadajinyuan through thin plate spline function interpolation and the established average temperature model under complex terrain, and compiling the preliminary suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves; Filtering the preliminary suitable zone distribution map according to the soil chloride ions in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compiling the production area planning map of Honghuadajinyuan according to the excellent tobacco soil index algorithm model constructed based on the soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map; Performing spatial overlay of the production area planning map of Honghuadajinyuan and the village-level administrative boundary map to compile the small production area planning distribution map of Honghuadajinyuan.

2. The method according to claim 1, characterized in that, The daily average temperature data is from all meteorological stations in the target area.

3. The method according to claim 2, wherein The process of establishing the average temperature model under complex terrain includes: Taking the day as the time unit, and using the topographic elevation model data of the target area, the longitude and latitude of all meteorological stations, and the daily average temperature data as the data sources to establish the average temperature model under complex terrain.

4. The method according to claim 1, wherein The compilation of the preliminary suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves includes: Determining the preset assignment corresponding to each type of suitable zone through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive quality of tobacco leaves; Assigning values to the daily average temperature of each region in the spatial distribution map of the daily average temperature to obtain the assignment result; Comparing the assignment result with the preset assignment to determine the suitable zone type corresponding to each assignment result, so as to compile the preliminary suitable zone distribution map suitable for the cultivation of Honghuadajinyuan.

5. The method according to claim 1, characterized in that, The screening of the preliminary suitable zone distribution map according to the soil chloride ions in the soil physical and chemical property database to obtain the potential suitable zone distribution map includes: Filtering the regions in the preliminary suitable zone distribution map where the soil chloride ion content is greater than the soil chloride ion critical threshold according to the soil chloride ions and the soil chloride ion critical threshold in the soil physical and chemical property database, and retaining the regions in the preliminary suitable zone distribution map where the soil chloride ion content is less than or equal to the soil chloride ion critical threshold to obtain the potential suitable zone distribution map.

6. The method according to claim 1, wherein The compilation of the production area planning map of Honghuadajinyuan according to the excellent tobacco soil index algorithm model constructed based on the soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map includes: Using the constructed excellent tobacco soil index algorithm model to perform weighted summation calculation on the soil texture, organic matter, soil acidity and alkalinity, available potassium, and exchangeable magnesium in each region of the potential suitable zone distribution map to obtain the soil excellent product index corresponding to each region; According to the preset index grading standard and the soil high-quality product index, determine the planting grade corresponding to each region to compile the planning map of the Honghuadajinyuan production area.

7. A planning device for small production areas of the precious Honghuadajinyuan flue-cured tobacco in the southwestern tobacco-growing region, characterized in that, The device includes: A data acquisition module, configured to acquire the daily average temperature data, terrain elevation model data, soil physical and chemical property database, and village-level administrative boundary map of the target area; A preliminary selection suitable zone distribution map compilation module, configured to compile the spatial distribution map of the daily average temperature during the mature period of Honghuadajinyuan through thin plate spline function interpolation and the established average temperature model under complex terrain, and compile the preliminary selection suitable zone distribution map suitable for the cultivation of Honghuadajinyuan through the established linear regression model between the spatial distribution map of the daily average temperature and the comprehensive tobacco leaf quality; A Honghuadajinyuan production area planning map compilation module, configured to screen the preliminary selection suitable zone distribution map according to the soil chloride ions in the soil physical and chemical property database to obtain the potential suitable zone distribution map, and compile the Honghuadajinyuan production area planning map according to the algorithm model of the tobacco-growing soil high-quality product index constructed by the soil texture, organic matter, soil pH, available potassium, and exchangeable magnesium in the soil physical and chemical property database and the potential suitable zone distribution map; A Honghuadajinyuan small production area planning distribution map compilation module, configured to perform spatial overlay of the Honghuadajinyuan production area planning map and the village-level administrative boundary map to compile the Honghuadajinyuan small production area planning distribution map.

8. An electronic device, characterized in that, The electronic device includes: One or more processors; A memory, configured to store one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method for planning the small production area of the precious Honghuadajinyuan flue-cured tobacco in the Southwest Tobacco Region as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method for planning the small production area of the precious Honghuadajinyuan flue-cured tobacco in the Southwest Tobacco Region as described in any one of claims 1-6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the method for planning the small production area of the precious Honghuadajinyuan flue-cured tobacco in the Southwest Tobacco Region as described in any one of claims 1-6.

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