Method and system for measuring carbon sequestration amount of camellia oleifera forest

Abstract

The invention discloses a method and system for measuring the carbon sequestration amount of an oil-tea camellia forest, and belongs to the technical field of carbon sequestration amount determination.The method comprises the steps that feature data of the oil-tea camellia forest are obtained, and an oil-tea camellia forest carbon sequestration capacity evaluation value is generated; acquiring soil data of the camellia oleifera forest litter layer, and generating a soil evaluation value of the camellia oleifera forest litter layer; acquiring sampling data of the camellia oleifera forest, and generating a camellia oleifera forest carbon sequestration amount estimated value; obtaining a camellia oleifera forest weather influence coefficient, establishing a camellia oleifera forest carbon sequestration quantity measurement model, and generating a camellia oleifera forest carbon sequestration quantity measurement value; according to the method, the evaluation value of the carbon sequestration capacity of the camellia oleifera forest is obtained by analyzing canopies, canopies and branches and leaves of the camellia oleifera forest, then the soil evaluation value of the litter layer of the camellia oleifera forest is obtained by analyzing the soil data of the litter layer of the camellia oleifera forest, and the carbon sequestration capacity of the camellia oleifera forest is evaluated by combining the influence of the weather data of the camellia oleifera forest on the carbon sequestration amount of the camellia oleifera forest. And finally, outputting the measured value of the carbon sequestration amount of the camellia oleifera forest, optimizing the measurement of the carbon sequestration amount of the camellia oleifera forest, and improving the accuracy of the measurement of the carbon sequestration amount of the camellia oleifera forest.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon sink measurement, and particularly relates to a method and system for measuring the carbon sink of oil-tea camellia forests. Background Art

[0002] As an important economic forest, the oil-tea camellia forest not only has significant economic benefits, but also shows strong carbon sequestration ability due to its unique ecological structure.

[0003] Accurately measuring the carbon sink of oil-tea camellia forests is of great significance for evaluating its ecological benefits, formulating carbon trading policies, and guiding forestry management. At present, the measurement methods of the carbon sink of oil-tea camellia forests mainly rely on traditional biomass models and remote sensing technologies, but these methods often ignore the influence of various environmental factors on the carbon sink, resulting in large errors in the measurement results. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method and system for measuring the carbon sink of oil-tea camellia forests, which solves the above problems.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A method for measuring the carbon sink of an oil-tea camellia forest, comprising the following steps: Obtain the characteristic data of the oil-tea camellia forest and generate an evaluation value of the carbon sequestration capacity of the oil-tea camellia forest; wherein, the characteristic data of the oil-tea camellia forest includes the canopy leaf gap, the branch crown angle, and the branch leaf angle. Obtain the soil data of the litter layer of the oil-tea camellia forest and generate an evaluation value of the soil of the litter layer of the oil-tea camellia forest; wherein, the data of the litter layer of the oil-tea camellia forest includes the number of soil decomposition microorganisms in the litter layer of the oil-tea camellia forest and the soil enzyme activity in the litter layer of the oil-tea camellia forest. Obtain the sampling data of the oil-tea camellia forest and generate a predicted value of the carbon sink of the oil-tea camellia forest; wherein, the sampling data includes the number of trees in the sampling area, the diameter at breast height of the trees in the sampling area, the height of the trees in the sampling area, and the weight of the litter layer in the sampling area. Obtain the weather influence coefficient of the oil-tea camellia forest, establish a measurement model for the carbon sink of the oil-tea camellia forest, and generate a measurement value of the carbon sink of the oil-tea camellia forest.

[0006] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions: A further technical solution, the obtaining of the characteristic data of the oil-tea camellia forest and generating an evaluation value of the carbon sequestration capacity of the oil-tea camellia forest specifically includes the following steps: Obtain the canopy leaf gap of the oil-tea camellia forest and generate an evaluation value of the canopy leaf gap of the oil-tea camellia forest. Obtain the branch crown angle of the oil-tea camellia forest and generate an evaluation value of the branch crown angle of the oil-tea camellia forest. Obtain the branch leaf angle of the oil-tea camellia forest and generate an evaluation value of the branch leaf angle of the oil-tea camellia forest. Generate the carbon sequestration capacity evaluation value of the oil-tea camellia forest based on the evaluation value of the leaf gap in the canopy layer of the oil-tea camellia forest, the evaluation value of the branch-canopy angle of the oil-tea camellia forest, and the evaluation value of the leaf-branch angle of the oil-tea camellia forest.

[0007] A further technical solution is that the generation method of the evaluation value of the leaf gap in the canopy layer of the oil-tea camellia forest is specifically as follows: Perform a difference operation on the leaf gap in the canopy layer and the middle value of the standard gap range to generate a gap difference; where the standard gap range refers to the size range of the leaf gap in the canopy layer without affecting sunlight penetration. Perform a ratio operation on the gap difference and the middle value of the standard gap range to generate the evaluation value of the leaf gap in the canopy layer of the oil-tea camellia forest. Among them, the generation method of the evaluation value of the branch-canopy angle of the oil-tea camellia forest is specifically as follows: Obtain the branch-canopy angle of the oil-tea camellia forest, perform a difference operation on the branch-canopy angle of the oil-tea camellia forest and the middle value of the standard range of the branch-canopy angle of the oil-tea camellia forest to generate a branch-canopy angle difference. Perform a ratio operation on the branch-canopy angle difference and the standard value of the branch-canopy angle of the oil-tea camellia forest to generate the evaluation value of the branch-canopy angle of the oil-tea camellia forest. Among them, the generation method of the evaluation value of the leaf-branch angle of the oil-tea camellia forest is specifically as follows; Obtain the leaf-branch angle of the oil-tea camellia forest, perform a difference operation on the leaf-branch angle of the oil-tea camellia forest and the middle value of the standard leaf-branch angle range to generate a leaf-branch angle difference; where the standard leaf-branch angle range refers to the angle range of the leaf-branch angle of the oil-tea camellia tree in the normal state. Perform a ratio operation on the leaf-branch angle difference and the middle value of the standard leaf-branch angle range to generate the evaluation value of the leaf-branch angle of the oil-tea camellia forest. Among them, the generation method of the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest is specifically as follows: Perform a weighted operation on the evaluation value of the leaf gap in the canopy layer of the oil-tea camellia forest, the evaluation value of the branch-canopy angle of the oil-tea camellia forest, and the evaluation value of the leaf-branch angle of the oil-tea camellia forest to generate the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest.

[0008] A further technical solution is that the obtaining of the soil data of the litter layer of the oil-tea camellia forest and generating the soil evaluation value of the litter layer of the oil-tea camellia forest specifically includes the following steps: Obtain the number of soil decomposition microorganisms in the litter layer of the oil-tea camellia forest and generate an evaluation value of the number of decomposition microorganisms. Obtain the soil enzyme activity in the litter layer of the oil-tea camellia forest and generate an evaluation value of the enzyme activity. Generate the soil evaluation value of the litter layer of the oil-tea camellia forest according to the evaluation value of the number of decomposition microorganisms and the evaluation value of the enzyme activity.

[0009] A further technical solution is that the generation method of the evaluation value of the number of decomposition microorganisms is specifically as follows: Obtain the quantity of soil decomposing microorganisms in the litter layer of the oil-tea camellia forest, process the ratio of the quantity of soil decomposing microorganisms in the litter layer of the oil-tea camellia forest to the total quantity of microorganisms in the soil of the litter layer of the oil-tea camellia forest, and generate the proportion of decomposing microorganism quantity. Perform a difference processing on the proportion of decomposing microorganism quantity and the median value of the range of the proportion of soil decomposing microorganisms in the litter layer of the oil-tea camellia forest to generate a proportion difference. Perform a ratio processing on the proportion difference and the median value of the range of the proportion of soil decomposing microorganisms in the litter layer of the oil-tea camellia forest to generate an evaluation value of the quantity of decomposing microorganisms. Among them, the specific method for generating the evaluation value of enzyme activity specifically includes: Obtain the soil enzyme activity in the litter layer of the oil-tea camellia forest, perform a difference processing on the soil enzyme activity in the litter layer of the oil-tea camellia forest and the median value of the standard range of soil enzyme activity to generate an enzyme activity difference. Perform a ratio processing on the enzyme activity difference and the median value of the standard range of soil enzyme activity to generate an evaluation value of enzyme activity.

[0010] A further technical solution, the obtaining of the sampling data of the oil-tea camellia forest and generating a predicted value of the carbon sink amount of the oil-tea camellia forest specifically includes: Through the formula , generate a predicted value Cs of the carbon sink amount of the oil-tea camellia forest; In the formula, DBH represents the diameter at breast height of the trees in the sampling area, H represents the height of the trees in the sampling area, Dg represents the weight of the litter layer in the sampling area, Pd represents the evaluation value of the soil in the litter layer of the oil-tea camellia forest, a is the constant coefficient of the equation, b is the exponential coefficient of the diameter at breast height DBH of the trees in the sampling area, c is the exponential coefficient of the height H of the trees in the sampling area, ω represents the carbon conversion factor, and η represents the ratio of the sampling area to the total area of the oil-tea camellia forest.

[0011] A further technical solution, the obtaining of the weather influence coefficient of the oil-tea camellia forest, establishing a measurement model of the carbon sink amount of the oil-tea camellia forest, and generating a measured value of the carbon sink amount of the oil-tea camellia forest specifically includes the following steps: Obtain the weather data of the oil-tea camellia forest and generate the weather influence coefficient of the oil-tea camellia forest; Establish a measurement model of the carbon sink amount of the oil-tea camellia forest, substitute the weather influence coefficient of the oil-tea camellia forest, the predicted value of the carbon sink amount of the oil-tea camellia forest, and the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest into the measurement model of the carbon sink amount of the oil-tea camellia forest, and generate a measured value of the carbon sink amount of the oil-tea camellia forest.

[0012] A further technical solution, the expression of the measurement model of the carbon sink amount of the oil-tea camellia forest is: ; In the expression, Sc represents the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest, Cs represents the predicted value of the carbon sink amount of the oil-tea camellia forest, and Ty represents the weather influence coefficient of the oil-tea camellia forest.

[0013] A further technical solution, the specific generation method of the weather influence coefficient of the oil-tea camellia forest is as follows: Obtain the weather data of the oil-tea camellia forest; among them, the weather data of the oil-tea camellia forest includes the average rainfall of the oil-tea camellia forest, the average light time of the oil-tea camellia forest, and the average light intensity of the oil-tea camellia forest; Perform a difference processing on the average rainfall of the oil-tea camellia forest and the standard rainfall in the growth environment of the oil-tea camellia forest to generate a rainfall difference; Perform a ratio processing on the rainfall difference and the standard rainfall in the growth environment of the oil-tea camellia forest to generate a rainfall influence coefficient; Perform a difference processing on the average light time of the oil-tea camellia forest and the standard light time in the growth environment of the oil-tea camellia forest to generate a light time difference; among them, the standard light time in the growth environment of the oil-tea camellia forest refers to the time of light that the oil-tea camellia forest needs to receive per unit time under normal circumstances; Perform a ratio processing on the light time difference and the standard light time in the growth environment of the oil-tea camellia forest to generate a light time influence coefficient; Perform a weighted processing on the rainfall influence coefficient and the light time influence coefficient to generate the weather influence coefficient of the oil-tea camellia forest.

[0014] A measurement system for the carbon sink amount of an oil-tea camellia forest, the system includes: A carbon sequestration capacity evaluation unit, used to obtain the characteristic data of the oil-tea camellia forest and generate a carbon sequestration capacity evaluation value of the oil-tea camellia forest; among them, the characteristic data of the oil-tea camellia forest includes the canopy leaf gap, the branch crown angle, and the branch leaf angle; A soil evaluation unit for the litter layer of the oil-tea camellia forest, used to obtain the soil data of the litter layer of the oil-tea camellia forest and generate a soil evaluation value for the litter layer of the oil-tea camellia forest; among them, the data of the litter layer of the oil-tea camellia forest includes the number of soil decomposition microorganisms in the litter layer of the oil-tea camellia forest and the soil enzyme activity in the litter layer of the oil-tea camellia forest; An oil-tea camellia forest carbon sink amount prediction module, used to obtain the sampling data of the oil-tea camellia forest and generate a predicted value of the carbon sink amount of the oil-tea camellia forest; among them, the sampling data includes the number of trees in the sampling area, the diameter at breast height of the trees in the sampling area, the height of the trees in the sampling area, and the weight of the litter layer in the sampling area; An oil-tea camellia forest carbon sink amount measurement value generation unit, used to obtain the weather influence coefficient of the oil-tea camellia forest, establish an oil-tea camellia forest carbon sink amount measurement model, and substitute the weather influence coefficient of the oil-tea camellia forest, the predicted value of the carbon sink amount of the oil-tea camellia forest, and the carbon sequestration capacity evaluation value of the oil-tea camellia forest into the oil-tea camellia forest carbon sink amount measurement model to generate an oil-tea camellia forest carbon sink amount measurement value; Among them, the carbon sequestration capacity evaluation unit specifically includes: A canopy leaf gap evaluation module, used to obtain the canopy leaf gap of the oil-tea camellia forest and generate a canopy leaf gap evaluation value of the oil-tea camellia forest; A branch crown angle evaluation module, used to obtain the branch crown angle of the oil-tea camellia forest and generate a branch crown angle evaluation value of the oil-tea camellia forest; The branch and leaf angle evaluation module is used to obtain the branch and leaf angles of the oil-tea camellia forest and generate an evaluation value for the branch and leaf angles of the oil-tea camellia forest; The carbon sequestration capacity evaluation value generation module of the oil-tea camellia forest is used to generate an evaluation value for the carbon sequestration capacity of the oil-tea camellia forest according to the evaluation value of the leaf gap in the canopy of the oil-tea camellia forest, the evaluation value of the branch canopy angle of the oil-tea camellia forest, and the evaluation value of the branch and leaf angles of the oil-tea camellia forest; Among them, the soil evaluation unit of the litter layer of the oil-tea camellia forest specifically includes: The decomposer microorganism quantity analysis module is used to obtain the quantity of soil decomposer microorganisms in the litter layer of the oil-tea camellia forest and generate an evaluation value for the quantity of decomposer microorganisms; The enzyme activity analysis module is used to obtain the soil enzyme activity in the litter layer of the oil-tea camellia forest and generate an evaluation value for the enzyme activity; The soil evaluation value generation module of the litter layer of the oil-tea camellia forest is used to generate an evaluation value for the soil of the litter layer of the oil-tea camellia forest according to the evaluation value of the quantity of decomposer microorganisms and the evaluation value of the enzyme activity; Among them, the carbon sequestration amount measurement value generation unit of the oil-tea camellia forest specifically includes: The weather analysis module is used to obtain the weather data of the oil-tea camellia forest and generate a weather influence coefficient for the oil-tea camellia forest; The generation module of the carbon sequestration amount measurement value of the oil-tea camellia forest is used to establish a carbon sequestration amount measurement model of the oil-tea camellia forest, and substitute the weather influence coefficient of the oil-tea camellia forest, the predicted value of the carbon sequestration amount of the oil-tea camellia forest, and the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest into the carbon sequestration amount measurement model of the oil-tea camellia forest to generate a carbon sequestration amount measurement value of the oil-tea camellia forest.

[0015] The present invention provides a method and system for measuring the carbon sequestration amount of an oil-tea camellia forest, and has the following beneficial effects compared with the prior art: By analyzing the canopy, branch canopy, and branch and leaf of the oil-tea camellia forest, the present invention obtains an evaluation value for the carbon sequestration capacity of the oil-tea camellia forest, then analyzes the soil data of the litter layer of the oil-tea camellia forest to obtain an evaluation value for the soil of the litter layer of the oil-tea camellia forest, and then combines the influence of the weather data of the oil-tea camellia forest on the carbon sequestration amount of the oil-tea camellia forest, and finally outputs a carbon sequestration amount measurement value of the oil-tea camellia forest, optimizing the measurement of the carbon sequestration amount of the oil-tea camellia forest and improving the accuracy of the measurement of the carbon sequestration amount of the oil-tea camellia forest. Description of the Drawings

[0016] Figure 1 It is a flowchart of a method for measuring the carbon sequestration amount of an oil-tea camellia forest provided by an embodiment of the present invention.

[0017] Figure 2 It is a flowchart of step S10 provided by an embodiment of the present invention.

[0018] Figure 3 It is a flowchart of step S20 provided by an embodiment of the present invention.

[0019] Figure 4 It is a flowchart of step S40 provided by an embodiment of the present invention.

[0020] Figure 5 This is a flowchart of a measurement system for the carbon sequestration amount of an oil-tea camellia forest provided by an embodiment of the present invention. Specific implementation manners

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0023] Please refer to Figure 1 , a method for measuring the carbon sequestration amount of an oil-tea camellia forest provided by an embodiment of the present invention, includes the following steps: Step S10: Obtain the characteristic data of the oil-tea camellia forest and generate an evaluation value of the carbon sequestration capacity of the oil-tea camellia forest; wherein, the characteristic data of the oil-tea camellia forest includes the canopy leaf gap, the branch crown angle, and the branch leaf angle; Specifically, the characteristic data of the oil-tea camellia forest is obtained through remote sensing technology or monitoring data; in addition, the characteristic data of the oil-tea camellia forest are all averages; for example, by randomly or regularly (equally dividing the area, at a fixed interval, etc.) selecting sufficient samples of the characteristic data of the oil-tea camellia forest, and then performing averaging processing on these characteristic data samples, the characteristic data of the oil-tea camellia forest can be obtained. At the same time, these data can also reflect the characteristic situation of the oil-tea camellia forest, that is, it will not cause difficulties in data collection due to the large area of the oil-tea camellia forest, and can also reflect the characteristic situation of the oil-tea camellia forest to a certain extent; Step S20: Obtain the soil data of the litter layer of the oil-tea camellia forest and generate an evaluation value of the soil of the litter layer of the oil-tea camellia forest; wherein, the data of the litter layer of the oil-tea camellia forest includes the number of soil decomposition microorganisms in the litter layer of the oil-tea camellia forest and the soil enzyme activity in the litter layer of the oil-tea camellia forest; Step S30: Obtain the sampling data of the oil-tea camellia forest and generate a predicted value of the carbon sequestration amount of the oil-tea camellia forest; wherein, the sampling data includes the number of trees in the sampling area, the diameter at breast height of the trees in the sampling area, the height of the trees in the sampling area, and the weight of the litter layer in the sampling area; Step S40: Obtain the weather influence coefficient of the oil-tea camellia forest, establish a measurement model for the carbon sequestration amount of the oil-tea camellia forest, and generate a measurement value of the carbon sequestration amount of the oil-tea camellia forest.

[0024] Please refer to Figure 2 , as a preferred embodiment of the present invention, the step S10 specifically includes the following steps: Step S11: Obtain the canopy leaf gap of the oil-tea camellia forest and generate an evaluation value of the canopy leaf gap of the oil-tea camellia forest; Step S12: Obtain the branch crown angle of the oil-tea camellia forest and generate an evaluation value of the branch crown angle of the oil-tea camellia forest; Step S13: Obtain the branch-leaf angle of the oil-tea camellia forest and generate an evaluation value for the branch-leaf angle of the oil-tea camellia forest; Step S14: Generate an evaluation value for the carbon sequestration capacity of the oil-tea camellia forest based on the evaluation value of the leaf gap in the canopy of the oil-tea camellia forest, the evaluation value of the branch-canopy angle of the oil-tea camellia forest, and the evaluation value of the branch-leaf angle of the oil-tea camellia forest.

[0025] As a preferred embodiment of the present invention, the generation method of the evaluation value of the leaf gap in the canopy of the oil-tea camellia forest is specifically as follows: Perform a difference processing on the leaf gap in the canopy and the middle value of the standard gap range to generate a gap difference; wherein, the standard gap range refers to the size range of the leaf gap in the canopy without affecting sunlight penetration. It should be noted that the leaf gap in the canopy refers to the spatial gap between the canopy leaves; for example, if the entire canopy of the oil-tea camellia tree is regarded as a three-dimensional coordinate system formed in three-dimensional space, each canopy leaf will have corresponding spatial coordinates, and the leaf gap in the canopy is the difference between adjacent spatial coordinates. Then, the difference is transformed (for example, the coordinate values of each axis in the coordinate are processed for difference, and then all the differences are summed) to obtain the leaf gap in the canopy. Perform a ratio processing on the gap difference and the middle value of the standard gap range to generate an evaluation value for the leaf gap in the canopy of the oil-tea camellia forest. Among them, the generation method of the evaluation value of the branch-canopy angle of the oil-tea camellia forest is specifically as follows: Obtain the branch-canopy angle of the oil-tea camellia forest, perform a difference processing on the branch-canopy angle of the oil-tea camellia forest and the middle value of the standard range of the branch-canopy angle of the oil-tea camellia forest to generate a branch-canopy angle difference. Perform a ratio processing on the branch-canopy angle difference and the standard value of the branch-canopy angle of the oil-tea camellia forest to generate an evaluation value for the branch-canopy angle of the oil-tea camellia forest. Specifically, the larger the evaluation value of the branch-canopy angle of the oil-tea camellia forest, the greater the impact of the branch-canopy angle on the photosynthesis of the oil-tea camellia forest; conversely, the smaller the evaluation value of the branch-canopy angle of the oil-tea camellia forest, the smaller the impact of the branch-canopy angle on the photosynthesis of the oil-tea camellia forest. In addition, the light-receiving area that the canopy of the oil-tea camellia forest can receive has a certain impact on the photosynthesis of the oil-tea camellia forest. The larger the area, the stronger the photosynthesis, and vice versa. Among them, the generation method of the evaluation value of the branch-leaf angle of the oil-tea camellia forest is specifically as follows; Obtain the branch-leaf angle of the oil-tea camellia forest, perform a difference processing on the branch-leaf angle of the oil-tea camellia forest and the middle value of the standard angle range of the branch-leaf to generate a branch-leaf angle difference; wherein, the standard angle range of the branch-leaf refers to the angle range of the branch-leaf of the oil-tea camellia tree in the normal state. Perform a ratio processing on the branch-leaf angle difference and the middle value of the standard angle range of the branch-leaf to generate an evaluation value for the branch-leaf angle of the oil-tea camellia forest. Among them, the generation method of the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest is specifically as follows: Weight the evaluation values of the leaf gap in the camellia oleifera forest canopy, the branch-canopy angle in the camellia oleifera forest, and the branch-leaf angle in the camellia oleifera forest to generate the evaluation value of the carbon sequestration capacity of the camellia oleifera forest; Exemplarily, through the formula , generate the predicted value of the carbon sequestration amount Cs of the camellia oleifera forest; In the formula, Ga represents the evaluation value of the leaf gap in the camellia oleifera forest canopy, Bc represents the evaluation value of the branch-canopy angle in the camellia oleifera forest, Bl represents the evaluation value of the branch-leaf angle in the camellia oleifera forest, and α, β, and γ are all weight coefficients.

[0026] Please refer to Figure 3 , as a preferred embodiment of the present invention, the step S20 specifically includes the following steps: Step S21: Obtain the number of soil decomposing microorganisms in the litter layer of the camellia oleifera forest and generate an evaluation value of the number of decomposing microorganisms; Step S22: Obtain the soil enzyme activity in the litter layer of the camellia oleifera forest and generate an evaluation value of the enzyme activity; Step S23: Generate the soil evaluation value of the litter layer of the camellia oleifera forest according to the evaluation value of the number of decomposing microorganisms and the evaluation value of the enzyme activity.

[0027] As a preferred embodiment of the present invention, the generation method of the evaluation value of the number of decomposing microorganisms is specifically as follows: Obtain the number of soil decomposing microorganisms in the litter layer of the camellia oleifera forest, and perform a ratio process on the number of soil decomposing microorganisms in the litter layer of the camellia oleifera forest and the total number of microorganisms in the soil of the litter layer of the camellia oleifera forest to generate a ratio of the number of decomposing microorganisms; Perform a difference process on the ratio of the number of decomposing microorganisms and the median value of the range of the ratio of soil decomposing microorganisms in the litter layer of the camellia oleifera forest to generate a difference in ratio; Perform a ratio process on the difference in ratio and the median value of the range of the ratio of soil decomposing microorganisms in the litter layer of the camellia oleifera forest to generate an evaluation value of the number of decomposing microorganisms.

[0028] As a preferred embodiment of the present invention, the generation method of the evaluation value of the enzyme activity specifically includes: Obtain the soil enzyme activity in the litter layer of the camellia oleifera forest, and perform a difference process on the soil enzyme activity in the litter layer of the camellia oleifera forest and the median value of the standard range of the soil enzyme activity to generate a difference in enzyme activity; Perform a ratio process on the difference in enzyme activity and the median value of the standard range of the soil enzyme activity to generate an evaluation value of the enzyme activity.

[0029] As a preferred embodiment of the present invention, the step S30 specifically includes: Through the formula , generate the predicted value of the carbon sequestration amount Cs of the camellia oleifera forest; In the formula, DBH represents the diameter at breast height of trees in the sampling area, H represents the height of trees in the sampling area, Dg represents the weight of the litter layer in the sampling area, Pd represents the soil evaluation value of the litter layer in the oil-tea camellia forest, a is the constant coefficient of the equation, b is the exponential coefficient of the diameter at breast height DBH of trees in the sampling area, c is the exponential coefficient of the height H of trees in the sampling area, ω represents the carbon conversion factor, and η represents the ratio of the area of the sampling area to the total area of the oil-tea camellia forest; It should be explained that the constant coefficient a of the equation reflects the preliminary relationship between the tree biomass and its characteristics (such as diameter and height), and can be determined according to the growth rate and density of the trees; the exponential coefficient b of the diameter at breast height DBH of trees in the sampling area reflects the non-linear relationship (power-law relationship) between the tree biomass and the diameter, that is, the larger the diameter of the tree, the faster the growth rate of its biomass may be compared to small trees; the exponential coefficient c of the height H of trees in the sampling area reflects the strength of the relationship between tree height and biomass; in addition, different tree species have different growth characteristics, and the relationships between biomass and diameter, height also vary; In forest ecology, biomass (such as the dry weight of trees, total wood volume, etc.) refers to the mass of organic matter in plants; since most of the biomass is composed of organic carbon, the carbon conversion factor can be used to estimate the carbon storage of trees or forests. Usually, 50% of the plant biomass is composed of carbon, that is, the value of the carbon conversion factor is usually 50%.

[0030] Please refer to Figure 4 , as a preferred embodiment of the present invention, the step S40 specifically includes the following steps: Step S41: Obtain the weather data of the oil-tea camellia forest and generate the weather influence coefficient of the oil-tea camellia forest; Step S42: Establish a determination model for the carbon sink amount of the oil-tea camellia forest, substitute the weather influence coefficient of the oil-tea camellia forest, the predicted value of the carbon sink amount of the oil-tea camellia forest, and the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest into the determination model for the carbon sink amount of the oil-tea camellia forest to generate the measured value of the carbon sink amount of the oil-tea camellia forest; Among them, the expression of the determination model for the carbon sink amount of the oil-tea camellia forest is: ; In the expression, Sc represents the evaluation value of the carbon sequestration capacity of the oil-tea camellia forest, Cs represents the predicted value of the carbon sink amount of the oil-tea camellia forest, and Ty represents the weather influence coefficient of the oil-tea camellia forest.

[0031] As a preferred embodiment of the present invention, the generation method of the weather influence coefficient of the oil-tea camellia forest is specifically: Obtain the weather data of the oil-tea camellia forest; among them, the weather data of the oil-tea camellia forest includes the average rainfall of the oil-tea camellia forest, the average light time of the oil-tea camellia forest, and the average light intensity of the oil-tea camellia forest; The average rainfall of the oil-tea camellia forest is processed by taking the difference from the standard rainfall of the growth environment of the oil-tea camellia forest to generate a rainfall difference value. The rainfall difference value is processed by taking the ratio to the standard rainfall of the growth environment of the oil-tea camellia forest to generate a rainfall influence coefficient. The average sunshine duration of the oil-tea camellia forest is processed by taking the difference from the standard sunshine duration of the growth environment of the oil-tea camellia forest to generate a sunshine duration difference value; wherein, the standard sunshine duration of the growth environment of the oil-tea camellia forest refers to the time of sunshine that the oil-tea camellia forest needs to receive per unit time under normal circumstances. It should be noted that the standard sunshine duration of the growth environment of the oil-tea camellia forest is generally the time of sunshine that the oil-tea camellia forest needs to receive under normal weather conditions in the area where the oil-tea camellia forest is located; for example, in a certain area, if there are more cloudy days in a certain period of time (a month, half a year or a year), and the oil-tea camellia forest fails to reach the standard sunshine duration, it may lead to insufficient photosynthesis of the oil-tea trees in the forest, and the carbon sink amount will also decrease accordingly. The sunshine duration difference value is processed by taking the ratio to the standard sunshine duration of the growth environment of the oil-tea camellia forest to generate a sunshine duration influence coefficient. The rainfall influence coefficient and the sunshine duration influence coefficient are processed by weighting to generate an oil-tea camellia forest weather influence coefficient.

[0032] Please refer to Figure 5 , the present invention also provides a measurement system for the carbon sink amount of an oil-tea camellia forest, and the system includes: A carbon sequestration capacity evaluation unit, which is used to obtain the characteristic data of the oil-tea camellia forest and generate a carbon sequestration capacity evaluation value of the oil-tea camellia forest; wherein, the characteristic data of the oil-tea camellia forest includes the canopy leaf gap, the branch crown angle, and the branch leaf angle. A soil evaluation unit of the litter layer of the oil-tea camellia forest, which is used to obtain the soil data of the litter layer of the oil-tea camellia forest and generate a soil evaluation value of the litter layer of the oil-tea camellia forest; wherein, the data of the litter layer of the oil-tea camellia forest includes the number of soil decomposition microorganisms in the litter layer of the oil-tea camellia forest and the soil enzyme activity in the litter layer of the oil-tea camellia forest. An oil-tea camellia forest carbon sink amount prediction module, which is used to obtain the sampling data of the oil-tea camellia forest and generate a predicted value of the carbon sink amount of the oil-tea camellia forest; wherein, the sampling data includes the number of trees in the sampling area, the diameter at breast height of the trees in the sampling area, the height of the trees in the sampling area, and the weight of the litter layer in the sampling area. An oil-tea camellia forest carbon sink amount measurement value generation unit, which is used to obtain the oil-tea camellia forest weather influence coefficient, establish an oil-tea camellia forest carbon sink amount measurement model, and substitute the oil-tea camellia forest weather influence coefficient, the predicted value of the carbon sink amount of the oil-tea camellia forest, and the carbon sequestration capacity evaluation value of the oil-tea camellia forest into the oil-tea camellia forest carbon sink amount measurement model to generate an oil-tea camellia forest carbon sink amount measurement value.

[0033] As a preferred embodiment of the present invention, the carbon sequestration capacity evaluation unit specifically includes: A canopy leaf gap evaluation module for obtaining the canopy leaf gap of the oil-tea camellia forest and generating an evaluation value of the canopy leaf gap of the oil-tea camellia forest; A branch-canopy angle evaluation module for obtaining the branch-canopy angle of the oil-tea camellia forest and generating an evaluation value of the branch-canopy angle of the oil-tea camellia forest; A branch-leaf angle evaluation module for obtaining the branch-leaf angle of the oil-tea camellia forest and generating an evaluation value of the branch-leaf angle of the oil-tea camellia forest; An oil-tea camellia forest carbon sequestration capacity evaluation value generation module for generating an evaluation value of the carbon sequestration capacity of the oil-tea camellia forest according to the evaluation value of the canopy leaf gap of the oil-tea camellia forest, the evaluation value of the branch-canopy angle of the oil-tea camellia forest, and the evaluation value of the branch-leaf angle of the oil-tea camellia forest.

[0034] As a preferred embodiment of the present invention, the soil evaluation unit of the oil-tea camellia forest litter layer specifically includes: A decomposer microorganism quantity analysis module for obtaining the quantity of soil decomposer microorganisms in the oil-tea camellia forest litter layer and generating an evaluation value of the quantity of decomposer microorganisms; An enzyme activity analysis module for obtaining the soil enzyme activity in the oil-tea camellia forest litter layer and generating an evaluation value of the enzyme activity; A soil evaluation value generation module of the oil-tea camellia forest litter layer for generating a soil evaluation value of the oil-tea camellia forest litter layer according to the evaluation value of the quantity of decomposer microorganisms and the evaluation value of the enzyme activity.

[0035] As a preferred embodiment of the present invention, the oil-tea camellia forest carbon sink quantity measurement value generation unit specifically includes: A weather analysis module for obtaining the weather data of the oil-tea camellia forest and generating an oil-tea camellia forest weather influence coefficient; An oil-tea camellia forest carbon sink quantity measurement value generation module for establishing an oil-tea camellia forest carbon sink quantity measurement model and substituting the oil-tea camellia forest weather influence coefficient, the oil-tea camellia forest carbon sink quantity estimated value, and the oil-tea camellia forest carbon sequestration capacity evaluation value into the oil-tea camellia forest carbon sink quantity measurement model to generate an oil-tea camellia forest carbon sink quantity measurement value.

[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for determining carbon sequestration in oil-tea camellia forests, characterized in that: The following steps are involved: Acquire characteristic data of the oil-tea camellia forest and generate an evaluation value of the carbon sequestration capacity of the oil-tea camellia forest; wherein the characteristic data of the oil-tea camellia forest include the canopy leaf gap, the branch-crown angle, and the branch-leaf angle; Acquire soil data of the oil tea forest litter layer and generate a soil evaluation value of the oil tea forest litter layer; wherein the oil tea forest litter layer data include the number of soil decomposing microorganisms in the oil tea forest litter layer and the soil enzyme activity in the oil tea forest litter layer; Acquire sampling data of the oil-tea camellia forest and generate an estimated carbon sink of the oil-tea camellia forest; wherein the sampling data includes the number of trees in the sampling area, the tree diameter at breast height in the sampling area, the tree height in the sampling area, and the weight of the litter layer in the sampling area; The weather impact coefficient of oil-tea forest was obtained, a carbon sink determination model for oil-tea forest was established, and the carbon sink determination value of oil-tea forest was generated.

2. The method for determining carbon sequestration in oil-tea camellia forest according to claim 1, characterized in that: The method of obtaining characteristic data of the oil-tea camellia forest and generating an evaluation value of the carbon fixation capacity of the oil-tea camellia forest specifically includes the following steps: Obtain the canopy leaf gap of the oil-tea forest and generate an evaluation value of the canopy leaf gap of the oil-tea forest; Obtain the branch-crown angle of the oil-tea forest and generate an evaluation value of the branch-crown angle of the oil-tea forest; Obtain the branch and leaf angle of the oil-tea forest and generate an evaluation value of the branch and leaf angle of the oil-tea forest; Based on the evaluation values ​​of leaf gap in the oil tea forest canopy, the evaluation values ​​of branch crown angle and the evaluation values ​​of branch and leaf angle of the oil tea forest, the evaluation value of carbon sequestration capacity of the oil tea forest is generated.

3. The method for determining carbon sequestration in oil-tea camellia forest according to claim 2, characterized in that: The method for generating the leaf gap assessment value of the oil-tea tree canopy is specifically as follows: The gap difference is generated by performing a difference process between the gap between canopy leaves and the middle value of the standard gap range; wherein the standard gap range refers to the size range of the gap between canopy leaves without affecting the penetration of sunlight; The gap difference is compared with the middle value of the standard gap range to generate the leaf gap assessment value of the oil-tea tree canopy. The method for generating the evaluation value of the oil-tea tree canopy angle is as follows: Obtaining the branch crown angle of the oil tea forest, performing difference processing on the branch crown angle of the oil tea forest and the middle value of the branch crown angle standard range of the oil tea forest, and generating the branch crown angle difference; The difference of the branch-crown angle is compared with the standard value of the branch-crown angle of the oil-tea forest to generate the evaluation value of the branch-crown angle of the oil-tea forest. The method for generating the evaluation value of the angle between branches and leaves of the oil tea forest is specifically as follows; Obtain the branch and leaf angle of the oil tea forest, perform difference processing on the branch and leaf angle of the oil tea forest and the middle value of the branch and leaf standard angle range, and generate the branch and leaf angle difference; wherein the branch and leaf standard angle range refers to the angle range of the branch and leaf angle of the oil tea tree in a normal state; The angle difference between branches and leaves is compared with the middle value of the standard angle range of branches and leaves to generate the evaluation value of the angle between branches and leaves in oil tea forest. The method for generating the evaluation value of the carbon sequestration capacity of the oil tea forest is specifically as follows: The leaf gap assessment value of the oil tea forest canopy, the branch crown angle assessment value and the branch-leaf angle assessment value of the oil tea forest are weighted to generate the carbon fixation capacity assessment value of the oil tea forest.

4. The method for determining carbon sequestration in oil-tea camellia forest according to claim 1, characterized in that: The step of obtaining soil data of the litter layer of the oil tea forest and generating a soil evaluation value of the litter layer of the oil tea forest specifically includes the following steps: Obtain the number of soil decomposing microorganisms in the litter layer of the oil tea forest and generate an evaluation value of the number of decomposing microorganisms; Obtain soil enzyme activity in the litter layer of the oil-tea tree forest and generate enzyme activity evaluation values; Based on the evaluation value of the number of decomposition microorganisms and the evaluation value of enzyme activity, the soil evaluation value of the litter layer of the oil tea forest is generated.

5. The method for determining carbon sequestration in oil-tea camellia forest according to claim 4, characterized in that: The method for generating the evaluation value of the number of decomposition microorganisms is specifically as follows: The number of soil decomposing microorganisms in the litter layer of the oil tea forest is obtained, and the number of soil decomposing microorganisms in the litter layer of the oil tea forest is processed by ratio with the total number of soil microorganisms in the litter layer of the oil tea forest to generate a ratio of the number of decomposing microorganisms; The ratio of the number of decomposing microorganisms is processed by difference with the middle value of the ratio range of soil decomposing microorganisms in the litter layer of the oil tea forest to generate the ratio difference; The ratio difference is processed with the middle value of the soil decomposition microorganism ratio range of the litter layer of the oil tea forest to generate the evaluation value of the number of decomposition microorganisms; The method for generating the enzyme activity evaluation value specifically includes: Obtaining soil enzyme activity in the litter layer of the oil tea forest, performing difference processing between the soil enzyme activity in the litter layer of the oil tea forest and the middle value of the standard range of soil enzyme activity, and generating enzyme activity difference; The enzyme activity difference was compared with the middle value of the standard range of soil enzyme activity to generate the enzyme activity evaluation value.

6. The method for determining carbon sequestration in oil-tea camellia forest according to claim 1, characterized in that: The step of obtaining sampling data of the oil-tea camellia forest and generating an estimated carbon sink value of the oil-tea camellia forest specifically includes: By formula , generate the estimated carbon sink value Cs of oil-tea camellia forest; In the formula, DBH represents the breast diameter of trees in the sampling area, H represents the height of trees in the sampling area, Dg represents the weight of the litter layer in the sampling area, Pd represents the soil evaluation value of the litter layer of the oil tea forest, a is the constant coefficient of the equation, b is the exponential coefficient of the breast diameter DBH of trees in the sampling area, c is the exponential coefficient of the height H of trees in the sampling area, ω represents the carbon conversion factor, and η represents the ratio of the area of ​​the sampling area to the total area of ​​the oil tea forest.

7. The method for determining carbon sequestration in oil-tea camellia forest according to claim 1, characterized in that: The method of obtaining the weather impact coefficient of the oil-tea camellia forest, establishing a carbon sink determination model for the oil-tea camellia forest, and generating a carbon sink determination value for the oil-tea camellia forest specifically includes the following steps: Obtain the weather data of the oil-tea forest and generate the weather impact coefficient of the oil-tea forest; A carbon sink determination model for oil palm forest was established, and the weather impact coefficient of oil palm forest, the estimated carbon sink of oil palm forest and the carbon fixation capacity evaluation value of oil palm forest were substituted into the carbon sink determination model to generate the carbon sink determination value of oil palm forest.

8. The method for determining carbon sequestration in oil-tea camellia forest according to claim 7, characterized in that: The expression of the oil tea forest carbon sequestration determination model is: ； In the expression, Sc represents the evaluation value of the carbon sequestration capacity of the oil tea forest, Cs represents the estimated carbon sink of the oil tea forest, and Ty represents the weather impact coefficient of the oil tea forest.

9. The method for determining carbon sequestration in oil-tea camellia forest according to claim 7, characterized in that: The method for generating the oil-tea tree forest weather impact coefficient is specifically as follows: Obtain weather data of the oil tea forest; wherein the weather data of the oil tea forest includes average rainfall in the oil tea forest, average sunshine time in the oil tea forest, and average sunshine intensity in the oil tea forest; The average rainfall of the oil-tea forest is processed with the standard rainfall of the oil-tea forest growth environment to generate the rainfall difference; The rainfall difference is compared with the standard rainfall in the growth environment of the oil-tea tree forest to generate the rainfall influence coefficient. The average light time of the oil tea forest is processed with the standard light time of the oil tea forest growth environment to generate the light time difference; wherein the standard light time of the oil tea forest growth environment refers to the time that the oil tea forest needs to receive light per unit time under normal circumstances; The difference in light duration is compared with the standard light duration in the growth environment of the oil-tea tree forest to generate the light duration influence coefficient. The rainfall influence coefficient and the sunshine time influence coefficient are weighted to generate the oil-tea forest weather influence coefficient.

10. A system for measuring carbon sequestration in oil tea forest, characterized in that: The system is used to execute the method described in any one of claims 1 to 9, and the system comprises: The carbon fixation capacity evaluation unit is used to obtain characteristic data of the oil tea forest and generate an evaluation value of the carbon fixation capacity of the oil tea forest; wherein the characteristic data of the oil tea forest include the canopy leaf gap, the branch crown angle, and the branch leaf angle; The soil evaluation unit of the oil tea forest litter layer is used to obtain soil data of the oil tea forest litter layer and generate a soil evaluation value of the oil tea forest litter layer; wherein the oil tea forest litter layer data includes the number of soil decomposing microorganisms of the oil tea forest litter layer and the soil enzyme activity of the oil tea forest litter layer; The oil-tea forest carbon sequestration estimation module is used to obtain the sampling data of the oil-tea forest and generate the estimated carbon sequestration value of the oil-tea forest; wherein the sampling data includes the number of trees in the sampling area, the tree diameter at breast height in the sampling area, the tree height in the sampling area and the litter layer weight in the sampling area; The oil-tea forest carbon sink measurement value generation unit is used to obtain the oil-tea forest weather impact coefficient, establish the oil-tea forest carbon sink measurement model, substitute the oil-tea forest weather impact coefficient, the oil-tea forest carbon sink estimated value and the oil-tea forest carbon fixation capacity evaluation value into the oil-tea forest carbon sink measurement model, and generate the oil-tea forest carbon sink measurement value; Wherein, the carbon sequestration capacity evaluation unit specifically includes: A canopy leaf gap assessment module is used to obtain the canopy leaf gap of the oil-tea forest and generate an assessment value of the canopy leaf gap of the oil-tea forest; The branch crown angle evaluation module is used to obtain the branch crown angle of the oil tea forest and generate the branch crown angle evaluation value of the oil tea forest; The branch and leaf angle evaluation module is used to obtain the branch and leaf angle of the oil tea forest and generate the branch and leaf angle evaluation value of the oil tea forest; The oil-tea forest carbon fixation capacity evaluation value generation module is used to generate the oil-tea forest carbon fixation capacity evaluation value according to the oil-tea forest canopy leaf gap evaluation value, the oil-tea forest branch crown angle evaluation value and the oil-tea forest branch leaf angle evaluation value; The soil evaluation unit of the oil tea forest litter layer specifically includes: The decomposition microorganism quantity analysis module is used to obtain the soil decomposition microorganism quantity of the oil tea forest litter layer and generate the decomposition microorganism quantity evaluation value; Enzyme activity analysis module, used to obtain soil enzyme activity in the litter layer of the oil tea forest and generate enzyme activity evaluation values; A soil evaluation value generation module for the litter layer of the oil tea forest, which is used to generate a soil evaluation value for the litter layer of the oil tea forest according to the evaluation value of the number of decomposing microorganisms and the evaluation value of enzyme activity; The oil tea forest carbon sequestration measurement value generation unit specifically includes: The weather analysis module is used to obtain the weather data of the oil-tea forest and generate the weather impact coefficient of the oil-tea forest; The module for generating the carbon sink measurement value of the oil-tung forest is used to establish a carbon sink measurement model for the oil-tung forest, substitute the weather impact coefficient of the oil-tung forest, the estimated carbon sink value of the oil-tung forest and the carbon fixation capacity evaluation value of the oil-tung forest into the carbon sink measurement model of the oil-tung forest, and generate the carbon sink measurement value of the oil-tung forest.

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