Calculating and measuring method for space environment effect of forest vegetation
A technology of spatial environment and spatial effects, which is applied in the field of measurement of forest vegetation spatial effects, can solve the problems of simplification of environmental factor research, difficulty in quantitative measurement, and difficulty in obtaining data of forest vegetation spatial environmental effects, etc., to achieve simple measurement , large error, simple and fast calculation
Inactive Publication Date: 2014-05-21
BEIJING FORESTRY UNIVERSITY
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[0004] In order to overcome the disadvantages of traditional methods such as difficult acquisition of forest vegetation spatial environmental effect data, difficult quantitative measurement, and simplification of environmental factor research, improve efficiency and accuracy, and realize accurate measurement of vegetation environmental effects of multi-factor environmental parameters, the present invention provides A method for measuring the spatial environmental effects of forest vegetation is proposed, which is characterized by: designing a research space with a suitable scale as a grid, establishing a forest spatial effect model, and determining the parameters in the model by means of remote sensing image data extraction or ground surveys. Parameter value, the spatial effect of vegetation in the study area is calculated by the model
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[0015] A method for measuring the spatial environmental effects of forest vegetation is different from existing methods, specifically in that:
[0016] 1) Select the appropriate scale value a, design a×a=a 2 is the research space of the grid;
[0017] 2) Determine the forest vegetation coverage value C of each grid by means of remote sensing image data extraction or ground survey i and biomass value W i , forest vegetation includes trees, shrubs, vegetation, crops, etc.;
[0018] 3) Obtain the value q of each grid environment parameter, the environment parameters include: PM 2.5 , PM 10 , temperature, humidity, rainfall, negative oxygen ions, SO 2 , HF, C1 2 equal factor;
[0019] 4) Build a model q=∑C i W i d r (r≤-1), and determine the value of forest vegetation spatial environmental effect index r;
[0020] 5) The model determined in step (4) can be directly used to determine the value of a certain environmental factor.
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The invention relates to a calculating and measuring method for space environment effect of forest vegetation. The calculating and measuring method comprises the following steps: designing a research space taking a proper scale value as a grid; establishing a forest space effect model; determining the parameter values in the model by means of extraction of remote sensing image data or ground survey; calculating the vegetation space effect of a research area according to the model. According to the calculating and measuring method, the defects that space environment effect data of the forest vegetation are difficult to acquire, the quantified calculation and measurement is difficult to realize, and research on environment factors is simplex are overcome; the efficiency and precision are improved; accurate measurement on the vegetation environment effect with multi-factor environment parameters is realized.
Description
1. Technical field [0001] The invention relates to a method for measuring the spatial environment effect of forest vegetation, in particular to a method for measuring the spatial effect of forest vegetation based on a grid method and a multi-directional method. 2. Technical background [0002] It has become a consensus in today's society that forests have three major benefits: economic benefits, ecological benefits, and social benefits. However, the quantitative research on the spatial environmental effects produced by a tree or a piece of vegetation and how it spreads in space has always been an international problem. In recent years, my country and Beijing have attached great importance to the construction of the ecological environment and achieved remarkable results. However, it is still difficult for these forests to guarantee their effectiveness in improving the negative effects brought about by the deterioration of the ecological environment. How to create vegetation s...
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IPC IPC(8): G06F19/00
Inventor 冯仲科高祥
Owner BEIJING FORESTRY UNIVERSITY
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