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Ecological restoration evaluation method and ecological restoration evaluation device

A technology for ecological restoration and evaluation devices, which is applied in character and pattern recognition, instruments, data processing applications, etc., and can solve the problems of different NDVI changes in ecological areas and incomparability

Pending Publication Date: 2021-08-17
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

[0005] The purpose of the present invention is to provide an ecological restoration evaluation method and an ecological restoration evaluation device, which can solve the problems that the NDVI changes in ecological areas are different and not comparable

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  • Ecological restoration evaluation method and ecological restoration evaluation device
  • Ecological restoration evaluation method and ecological restoration evaluation device
  • Ecological restoration evaluation method and ecological restoration evaluation device

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0044] In view of the above technical problems, the present application proposes the following technical solutions.

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0046] In one embodiment, as Figure 1-5 As shown, the invention provides a kind of ecological restoration evaluation method, and the ecological restoration evaluation method co...

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Abstract

The invention discloses an ecological restoration assessment method and an ecological restoration assessment device, and the method comprises the steps: obtaining a plurality of standard NDVI of each to-be-assessed region in each time period, carrying out the summation of the data of the plurality of standard NDVI, and obtaining an average value, so as to obtain an average value NDVI of each to-be-assessed region in each time period; obtaining an average value of the climate data of each region to be evaluated in each time period to obtain average value climate data; performing multiple regression equation simulation by taking the average value meteorological data as an independent variable and the average value NDVI dependent variable of each time period of the to-be-evaluated region, and obtaining a predicted value NDVIpre of each time period of each to-be-evaluated region according to a multiple regression equation; obtaining the difference between the predicted value NDVIpre of each time period of the to-be-evaluated region and the corresponding average value NDVI of each time period, so that a plurality of residual errors NDVI can be obtained; forming a residual error curve by each to-be-evaluated area according to the corresponding multiple residual error NDVIs, and performing clustering analysis on the residual error curve corresponding to each to-be-evaluated area.

Description

technical field [0001] The invention relates to the technical field of ecological environment, in particular to an ecological restoration evaluation method and an ecological restoration evaluation device. Background technique [0002] Quantitative analysis of NDVI is to quantify the extent to which human activities affect NDVI changes. Existing technologies are mainly evaluated by residual method and multiple linear regression model method. In the residual method, based on the NDVI data of the ecological region and the precipitation data in this area, the regression equation is obtained by performing regression simulation on NDVI. The difference between the simulated value calculated according to the regression equation and the actual value is obtained to obtain the residual, and the residual at this time can be regarded as the NDVI change caused by human factors. Since the method was proposed in the issue of vegetation degradation in arid areas in 2004, it has been recogni...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26G06K9/62
CPCG06Q10/0639G06Q50/26G06F18/23
Inventor 张学珍
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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