High-standard farmland engineering construction investment estimation method

Abstract

The invention discloses a high-standard farmland engineering construction investment estimation method. The method focuses on main engineering construction content and key supporting facilities which have great influence on high-standard farmland construction investment, calculates engineering amount and investment, and comprises the following steps: determining main influence factors of the high-standard farmland main engineering construction content and engineering cost; according to factors such as landforms, crop categories, regional climate, planting requirements and budget constraints, engineering quantities and investments such as field renovation, irrigation and drainage, farmland protection and ecological environment protection, field roads and farmland power transmission and distribution are obtained respectively, and finally high-standard farmland construction investment estimation is obtained through calculation. The investment estimation method based on comprehensive consideration of natural and social conditions is researched for solving the problems that high-standard farmland construction in different areas is large in key difference, large in difficulty difference and lack of investment calculation basis in the early stage, and the method basis and technical support are provided for high-standard farmland construction investment estimation.

Description

Technical Field

[0001] This invention relates to the fields of farmland construction and informatization, and more specifically to a method for estimating investment in high-standard farmland construction projects. Background Technology

[0002] Investment estimation for high-standard farmland construction is a crucial factor determining the rationality of its construction. Cost analysis mainly includes engineering components such as field improvement, irrigation and drainage, field roads, farmland protection and ecological environment protection, and farmland power transmission and distribution. Among these, field improvement, irrigation and drainage, and field roads are unavoidable aspects of high-standard farmland construction, directly impacting post-construction farmland quality and crop yield. Utilizing natural and social factors related to each engineering component for investment estimation is essential for guiding farmland construction. However, currently, a systematic calculation method for investment estimation in high-standard farmland construction is lacking. Therefore, it is necessary to propose a method for estimating the quantities and investment of engineering components that encompass the basic construction of high-standard farmland. Summary of the Invention

[0003] In view of the above background, the present invention provides a method for estimating investment in the construction of high-standard farmland projects.

[0004] According to a first aspect of the present invention, a method for estimating investment in the construction of high-standard farmland projects is provided, comprising: determining the calculation content and main influencing factors of investment estimation for high-standard farmland; the calculation content of investment estimation includes investment estimation of necessary construction processes in the construction process of high-standard farmland projects; the main influencing factors of each investment estimation include natural and social impact factors related to the difficulty of high-standard construction; and analyzing the investment estimation of each part in sequence according to the calculation content and main influencing factors of investment estimation for high-standard farmland. First, the investment estimate for field improvement projects is calculated based on topographical conditions, road traffic conditions, and geological and soil conditions. Then, the investment estimate for irrigation and drainage projects is determined based on the location and method of irrigation water sources, irrigation and drainage scale, crop types, regional climate conditions, geological and soil conditions, and ground slope. Next, the width and density of road networks at all levels are calculated based on road traffic conditions, topographical conditions, and crop types, thereby determining the investment estimate for field road projects. Finally, the investment estimate for farmland protection and ecological environmental protection projects is determined based on farmland slope protection, ditch conditions, and ecological environmental protection needs. And the investment estimate for farmland power transmission and distribution projects is determined based on farmland power load and project investment budget constraints. Finally, the engineering quantity and investment for the main construction contents of high-standard farmland are calculated based on various natural and social condition indicators.

[0005] According to an embodiment of the present invention, the topographic and geomorphological conditions, road traffic conditions, and geological and soil conditions are the main influencing factors of field improvement projects; the topographic and geomorphological conditions refer to the topographic slope index, the crop type refers to the field flatness index, and the geological and soil conditions refer to the soil density index.

[0006] According to an embodiment of the present invention, the location and method of irrigation water source, the scale of irrigation and drainage, the type of crops planted, the regional climate conditions, the geological and soil conditions, and the ground slope are the main influencing factors of the irrigation and drainage engineering scheme, which in turn affect the investment estimate of the irrigation and drainage engineering. The location and method of irrigation water source refers to the relative position of water sources such as wells, ponds / dams, and reservoirs to the center of the field. The scale of irrigation and drainage refers to the field area. The type of crops planted refers to the type of crops planted in the field, which determines the water requirement. The regional climate conditions refer to the annual rainfall in the region. The geological and soil conditions refer to the soil density. The ground slope refers to the ground slope at the field scale.

[0007] According to an embodiment of the present invention, the road traffic conditions, topographic conditions, and crop types are direct influencing factors on the amount of field road engineering, directly affecting the construction requirements for the width and density of road networks at all levels, and thus affecting the investment estimate for road network construction; the road traffic conditions refer to the field accessibility index, and the topographic conditions refer to the topographic slope index; the crop types include grain crops such as rice, wheat, and corn; the road networks at all levels refer to the essential field roads (machine-cultivated roads) and production roads necessary for high-standard farmland.

[0008] According to an embodiment of the present invention, the farmland slope protection, ditch conditions, and ecological environment protection requirements are the main influencing factors of the farmland protection and ecological environment protection engineering quantities, thereby affecting the investment estimation of farmland protection and ecological environment protection engineering; the farmland slope protection refers to the length, width, and height indicators of natural or artificial slopes around the farmland, the ditch conditions refer to the length, width, and depth indicators of natural or artificial ditches around the farmland, and the ecological environment protection requirements refer to the tree density indicators of farmland shelterbelts or green belts.

[0009] According to an embodiment of the present invention, the farmland power load and the project investment budget constraint are direct influencing factors on the amount of farmland power transmission and distribution projects and investment estimates; the farmland power load refers to the farmland power load index calculated based on the farmland scale; the project investment budget constraint refers to the remaining budget after deducting necessary items from the current total budget for high-standard farmland construction. Attached Figure Description

[0010] The above-described features, other objects, and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0011] Figure 1A flowchart illustrating the investment estimation method for high-standard farmland construction according to an embodiment of the present invention is shown.

[0012] Figure 2 This diagram illustrates the investment estimation process for a field consolidation project according to an embodiment of the present invention.

[0013] Figure 3 The diagram illustrates the investment estimation process for irrigation and drainage works according to an embodiment of the present invention.

[0014] Figure 4 The diagram illustrates the investment estimation process for field road engineering according to an embodiment of the present invention.

[0015] Figure 5 This illustration schematically depicts the investment estimation process for farmland protection and ecological environment protection projects according to embodiments of the present invention; and

[0016] Figure 6 The diagram illustrates the investment estimation process for farmland power transmission and distribution projects according to an embodiment of the present invention. Detailed Implementation

[0017] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the invention for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0018] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0019] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0020] When using expressions such as "at least one of A, B, and C", they should generally be interpreted in accordance with the meaning that is commonly understood by a person skilled in the art (e.g., "a system having at least one of A, B, and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B, and C, etc.).

[0021] Investment estimation for high-standard farmland construction plays a crucial role in guiding farmland planning, design, and construction, involving various engineering aspects such as field improvement, irrigation and drainage facilities, road and bridge networks, farmland shelterbelts, and power distribution facilities. However, currently, there is no scientific analytical method or calculation system for estimating investment in high-standard farmland based on regional natural or social indicators. How to scientifically conduct investment estimation for high-standard farmland construction and achieve accurate estimation has become a hot topic in scientific research and local practice. Therefore, this invention provides a method for estimating investment in high-standard farmland construction, which can achieve multi-stage investment estimation and calculation through natural and social indicators, providing strong technical support for the construction of high-standard farmland.

[0022] pass Figure 1 The investment estimation method and calculation system for high-standard farmland construction projects according to the disclosed embodiments are described in detail.

[0023] Figure 1 A flowchart illustrating the investment estimation method and calculation system for high-standard farmland construction according to an embodiment of the present invention is shown. Figure 1 As shown, this embodiment includes operations S101 to S107.

[0024] In operation S101, the calculation content and main influencing factors of investment estimation for high-standard farmland are determined. The calculation content of investment estimation includes the investment estimation of the necessary construction process of the high-standard farmland project. The main influencing factors of each investment estimation include natural and social impact factors related to the difficulty of high-standard construction.

[0025] For example, the calculation content of the investment estimate for high-standard farmland includes the construction of essential facilities such as field improvement, irrigation and drainage facilities, roads and bridges, farmland shelterbelts and power distribution facilities. The main influencing factors of the investment estimate include natural and social impact factors related to the difficulty of high-standard construction, such as topographic conditions, road and transportation conditions, geological and soil conditions, location of irrigation water sources, and shape and size of fields.

[0026] In operation S102, the investment estimate for leveling the site is calculated based on the topographic conditions, crop types, and geological and soil conditions; among them, topographic conditions refer to the topographic slope index, crop types refer to the field flatness index, and geological and soil conditions refer to the soil density index.

[0027] For example, the volume of excavated earthwork and the volume of backfill can be calculated based on the terrain slope index, and the difficulty of excavation and backfill can be determined based on soil conditions, generally referring to soil density.

[0028] Figure 2 A schematic diagram illustrating the site leveling investment estimation process according to an embodiment of the present invention is provided. Figure 2 As shown, the investment estimation for site leveling mainly includes the analysis of four investment estimation contents: excavation, backfilling, soil transportation, and site leveling.

[0029] Specifically, for example, the volume and cost of site leveling work are calculated according to the following formulas: Excavation volume (V1) = Site area (S) × Excavation depth (D) (1) Backfill volume (V2) = Excavated earth volume (V1) - Volume of buried part below the stratum (V') (2) Note: The volume of buried part below the stratum generally includes the volume occupied by water and electricity pipelines.

[0030] Earthmoving volume (QS) = Total excavation volume (V1) - Total backfill volume (V2) (3) Leveling area (S) = Field area (S') + Field perimeter (C) * Field road width (W) = Field area (S') + Field road length (L) * Field road width (W) (4) Leveling cost (P1) = Excavation volume (V1) * Excavation unit price under a certain soil density + Backfill volume (V2) * Backfill unit price under a certain soil density + Earthmoving volume (QS) * Earthmoving unit price under a certain soil density + Leveling area (S) * Leveling unit price under a certain soil density (5)

[0031] It should be noted that the specifics vary from region to region, and there are no restrictions on the content and number of indicators for analysis and calculation.

[0032] In operation S103, the layout plan and investment estimate of the irrigation and drainage pipeline network are determined based on the location and water intake method of the irrigation water source, the scale of irrigation and drainage, the type of crops planted, the regional climate conditions, the geological and soil conditions, and the ground slope.

[0033] For example, the location of irrigation water source refers to the relative position of water sources such as wells, ponds / dams, and reservoirs to the center of the field; the scale of irrigation and drainage refers to the field area; the type of crop planted refers to the type of crop planted in the field, which in turn determines the water requirement; the regional climate conditions refer to the annual rainfall in the region; the geological and soil conditions refer to the soil density; and the ground slope refers to the ground slope at the field scale.

[0034] For example, depending on the location of the well, the size of the field, the slope of the ground, and the direction of crop planting, the pipeline network can be arranged in a tree-like or ring-like pattern. The investment estimate for the layout of the irrigation pipeline network can be obtained based on the appropriate design scheme.

[0035] For example, in well irrigation areas, the pipe network layout can be designed as a dendritic pipe network. That is, the well is located on one side of the field, and the field is long and strip-shaped, mainly in the "T" shape, suitable for the well water output of 20 - 40 m3 / h, the controlled area of 3.3 - 6.7 hm2, and the length-width ratio of the field not greater than 3; and the "L" shape, suitable for the well water output of 20 - 40 m3 / h, the controlled area of 3.3 - 6.7 hm2, and the length-width ratio of the field not greater than 3.

[0036] For example, when the well is located in the center of the field, it can be designed as the "I" shape, suitable for the well water output of 40 - 60 m3 / h, the controlled area of 6.7 - 10 hm2, and the length-width ratio of the field not greater than 2; and the long "-" shape, suitable for the case where the length-width ratio of the field is greater than 2.

[0037] For example, when the well is located on one side of the field, and at the same time the field area is large and approximately square, it can be designed as the "Gui" shape, suitable for the well water output of 60 - 100 m3 / h, the controlled area of 10 - 20 hm2, and the length-width ratio of the field approximately equal to 1; and the "п" shape, suitable for the well water output of 60 - 100 m3 / h, the controlled area of 10 - 20 hm2, and the length-width ratio of the field approximately equal to 1.

[0038] Figure 3 Schematically shows a schematic diagram of the investment estimation process for the irrigation pipe network layout in the irrigation and drainage project according to an embodiment of the present invention. As Figure 3 shown, the investment estimation for the irrigation pipe network layout mainly includes the analysis of four investment estimation contents: material cost, transportation cost, equipment installation cost, and pipeline laying cost.

[0039] Specifically, for example, the investment estimation for the irrigation pipe network layout is calculated according to the following formula: Material cost (P2-1) = Pipeline length * Pipeline unit price + Number of pipe fittings * Pipe fitting unit price + Number of valves * Valve unit price + Number of manhole covers * Manhole cover unit price (6) Note: The material cost is calculated according to the specifications, models, and market prices of different materials. For example, the price of PVC pipeline is 60 yuan per meter.

[0040] Transportation cost (P2-2) = Material and equipment weight * Transportation distance (7) Note: The transportation cost is calculated according to the transportation distance and transportation methods of different materials and equipment. For example, the transportation cost per kilometer is 10 yuan.

[0041] Equipment installation cost (P2-3) = Number of pump stations * Pump station unit price + Number of pump stations * Installation construction cost (8) Note: The equipment installation cost is calculated according to the specifications, models, and market prices of different equipment. For example, the price of a pump station is 1 million yuan per unit.

[0042] Pipeline laying cost (P2-4) = Pipeline length * Pipeline laying construction cost (9) Note: Pipeline laying cost is calculated based on the wage standards and working hours of different construction workers. For example, the wage of ordinary workers is RMB 1 per linear meter or RMB 200 per day, and the wage of skilled workers is RMB 1.2 per linear meter or RMB 300 per day.

[0043] Irrigation pipeline network construction cost (P2) = Material cost (P2-1) + Transportation cost (P2-2) + Equipment installation cost (P2-3) + Pipeline laying cost (P2-4) (10)

[0044] It should be noted that the specifics vary from region to region, and there are no restrictions on the content and number of indicators for analysis and calculation.

[0045] In operation S104, the density and total number of road network bridges and culverts in field road engineering are calculated based on road traffic conditions, topographical conditions, and crop types, thereby determining the investment estimate for road network bridge and culvert construction.

[0046] For example, road traffic conditions refer to the accessibility index of fields, and topographic conditions refer to the topographic slope index; the crop categories mentioned here include grain crops such as rice, wheat, and corn.

[0047] For example, farm roads need to be paved and are generally 3-6 meters wide; field production roads only need to be leveled and do not need to be paved, and are generally less than 3 meters wide.

[0048] Figure 4 A schematic diagram illustrating the road network construction investment estimation process according to an embodiment of the present invention is provided. Figure 4 As shown, the road network construction investment estimate mainly includes the analysis of the investment estimate for road surface hardening costs.

[0049] Specifically, for example, the investment estimate for field roads is calculated using the following formula: Road hardening cost (P3-1) = Road length * Road width * Expected road hardening thickness * (Quantity of concrete * Unit price of concrete + Quantity of cement * Unit price of cement + Weight of sand * Unit price of sand + Weight of gravel * Unit price of gravel + Quantity of mixing water * Unit price of mixing water) (11) Road construction investment estimate (P3) = Road hardening cost (P3-1) (12)

[0050] It should be noted that the specifics vary from region to region, and there are no restrictions on the content and number of indicators for analysis and calculation.

[0051] In operating S105, the amount of farmland protection and ecological environment protection engineering and investment are determined based on the farmland slope protection, ditch conditions, and ecological environment protection needs.

[0052] For example, farmland slope protection, ditch conditions, and ecological environment protection needs are direct influencing factors on the density and total amount of farmland shelterbelts. Farmland slope protection refers to the length, width, and height of natural or artificial slopes around farmland; ditch conditions refer to the length, width, and depth of natural or artificial ditches around farmland; and ecological environment protection needs refer to the planting density of farmland shelterbelts or green belts.

[0053] For example, for farm roads wider than 6 meters, green belts need to be built on both sides of the road; drainage ditches need to be built on the side of the road closest to the ditch.

[0054] Figure 5 This diagram illustrates the process of estimating investment in farmland shelterbelt networks in farmland protection and ecological environment protection engineering according to an embodiment of the present invention. Figure 5 As shown, the investment estimate for farmland shelterbelts mainly includes the cost of green belts and the cost of drainage ditches.

[0055] Specifically, for example, the investment estimate for farmland shelterbelts is calculated according to the following formula: Green belt cost (P4-1) = Number of trees * Unit price + Tree weight * Transportation unit price + Number of trees * Planting unit price (13) Drainage ditch side cost (P4-2) = Length of road on the side of the canal * Backfill volume per meter (14) Farmland shelterbelt estimate (P4) = Green belt cost (P4-1) + Drainage ditch side cost (P4-2) (15)

[0057] In operation S106, the amount of farmland power transmission and distribution engineering and investment estimates are determined based on farmland power load and engineering investment budget constraints.

[0058] For example, farmland power load refers to the farmland power load index calculated based on farmland size; project investment budget constraint refers to the remaining budget after deducting necessary items from the total budget for high-standard farmland construction at this stage.

[0059] For example, a 10,000-mu (667 hectares) high-standard farmland typically requires 8-12 power distribution facilities.

[0060] Specifically, for example, the investment estimate for power distribution facilities is calculated according to the following formula: Power distribution facility cost (P5) = Quantity of power distribution facilities * Unit price (16)

[0061] In operation S107, the total investment estimate for the construction of high-standard farmland projects is calculated based on the construction investment of field improvement, irrigation and drainage networks, roads and bridges, farmland shelterbelts, and power distribution facilities, obtained from various natural and social condition indicators.

[0062] For example, by summing the results of steps S102 to S106, the total investment estimate calculation result in S107 is obtained.

[0063] The investment estimation method for high-standard farmland construction in this invention relies on natural and social indicators to analyze the construction content of high-standard farmland item by item, providing methodological and systemic support for investment estimation of high-standard farmland construction, as well as a scientific engineering cost scheme.

[0064] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

[0065] The embodiments of the present invention have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of the invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used effectively in combination. The scope of the invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the invention, and all such substitutions and modifications should fall within the scope of the invention.

Claims

1. A method for estimating investment in high-standard farmland construction, comprising: The main construction contents and key factors influencing the cost of high-standard farmland projects were determined. The main construction contents included the necessary engineering components of the high-standard farmland construction process. The key factors influencing the cost included natural and social impact factors related to the difficulty of high-standard construction. Based on the calculation content and main influencing factors of the high-standard farmland investment estimate, the investment estimate of each part is analyzed in turn. First, the investment estimate of the field improvement project is calculated based on topography, crop type, geological and soil conditions. Among them, climate conditions, topography, and crop type are the main influencing factors of the field improvement project. Topography refers to the topographic slope index, crop type refers to the field flatness index, and geological and soil conditions refer to the soil density index. The irrigation and drainage engineering scheme and investment are determined based on factors such as the location and method of irrigation water source, the scale of irrigation and drainage, the type of crops planted, regional climate conditions, geological and soil conditions, and ground slope. Among these factors, the location and method of irrigation water source, the scale of irrigation and drainage, the type of crops planted, the regional climate conditions, the geological and soil conditions, and the ground slope are the main influencing factors of the irrigation and drainage network layout scheme, which in turn affect the investment estimate for the layout of irrigation and drainage canals (ditches), pipelines, etc. The location and method of irrigation water source refers to the relative position of water sources such as wells, ponds / dams, and reservoirs to the center of the field; the scale of irrigation and drainage refers to the field area; the type of crops planted refers to the type of crops planted in the field, which determines the water requirement; the regional climate conditions refer to the annual rainfall in the region; the geological and soil conditions refer to the soil density; and the ground slope refers to the ground slope at the field scale. The amount of field road construction and investment are estimated based on road traffic conditions, topographical conditions, and crop types. Road traffic conditions, topographical conditions, and crop types are direct influencing factors on the density and total number of field roads. Crop types are a direct influencing factor on the type of agricultural machinery used, which directly affects the construction requirements for the width and density of road networks at all levels, thus affecting the investment estimate for road network construction. Road traffic conditions refer to field accessibility indicators, and topographical conditions refer to topographical slope indicators. Crop types refer to grain crops such as rice, wheat, and corn. Road networks at all levels refer to the essential field roads (farm roads) and production roads for high-standard farmland. The quantity and investment of farmland protection and ecological environment protection projects are determined based on factors such as the farmland slope protection status, ditch conditions, and ecological environment protection needs. Among these factors, the farmland slope protection status, ditch conditions, and ecological environment protection needs are direct influencing factors on the quantity of farmland protection and ecological environment protection projects. The farmland slope protection status refers to the length, width, and height of natural or artificial slopes around the farmland; the ditch conditions refer to the length, width, and depth of natural or artificial ditches around the farmland; and the ecological environment protection needs refer to the tree density of farmland shelterbelts or green belts. Based on farmland power load and project investment budget constraints, the quantity and investment of farmland power transmission and distribution projects are determined; wherein, the farmland power load and project investment budget constraints are direct influencing factors on the quantity of farmland power transmission and distribution facilities to be constructed; the farmland power load refers to the farmland power load index calculated based on the farmland scale; the project investment budget constraints refer to the remaining budget after deducting necessary items from the current total budget for high-standard farmland construction. Based on the above-mentioned natural and social condition indicators, the costs of field improvement projects, irrigation and drainage projects, field road projects, farmland protection and ecological environment protection projects, and farmland power transmission and distribution projects are calculated, and the total investment estimate for high-standard farmland construction is obtained. Among them, the natural and social condition indicators refer to the cost analysis indicators mentioned above. However, it should be noted that investment analysis indicators should be set according to the actual situation, including but not limited to the above-mentioned indicators.

2. The method according to claim 1, wherein, The investment estimate includes, but is not limited to: the cost of essential field improvement projects, irrigation and drainage projects, field road projects, farmland protection and ecological environment protection projects, and farmland power transmission and distribution projects required for the construction of high-standard farmland. It may also include field monitoring projects and other projects constructed in addition to the above.

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