A method for constructing an ecological security pattern

A technology of ecological security and construction method, applied in the field of environmental ecology, can solve the problems of few attempts of ecological security pattern

Active Publication Date: 2019-05-24
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still relatively few attempts to use machine learning algorithms to construct an ecological security pattern.

Method used

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  • A method for constructing an ecological security pattern
  • A method for constructing an ecological security pattern
  • A method for constructing an ecological security pattern

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Experimental program
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Embodiment

[0094] This embodiment discloses a method for constructing an ecological security pattern, such as figure 1 As shown, the steps are as follows:

[0095] Step S1, basic data processing of ecological security pattern:

[0096] First, select one or more regions with a known ecological security pattern scheme, randomly generate multiple data points in one or more regions in GIS, extract the ecological security pattern attributes of each data point, and assign the ecological security protection The data points of the pattern attribute are taken as the sample points of the occurrence of the ecological security pattern (assigned as 1), and the data points of the construction land are taken as the sample points of the non-occurrence of the ecological security pattern (assigned as 0), and then the environmental variable attributes are extracted for each sample point value, which constitutes a numerical matrix of machine learning samples;

[0097]In this embodiment, the ecological sec...

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Abstract

The invention discloses a method for constructing an ecological security pattern. Firstly, a plurality of data points whose known attribute is to ensure the ecological security pattern and a plurality of data points whose known attribute are construction land are obtained; the environmental variables of these data points are extracted, and the The environmental variables of the point are trained for the LR model in SPARK to obtain the relationship between each environmental variable and the ecological security pattern; and the weight vector of each environmental variable obtained from the above training is applied to the GIS to find the target grid, and the The ecological security pattern prediction model is obtained by constructing the logistic regression model; when it is necessary to construct the ecological security pattern in a certain area, the distribution map of each environmental variable in the area is obtained, and after inputting each environmental variable into the ecological security pattern prediction model, the ecological security pattern is obtained. Security landscape probability distribution map. The method of the invention can accurately construct the ecological security pattern of each region, and has relatively great reference value in practical application.

Description

technical field [0001] The invention belongs to the field of environmental ecology, and in particular relates to a method for constructing an ecological security pattern. Background technique [0002] Ecological security pattern, also known as ecological security framework, refers to the existence of a certain potential ecological system spatial pattern in the landscape, which is composed of some key parts, points and positional relationships, and this pattern has an important role in maintaining and controlling a certain ecological process. crucial role. The construction of landscape security pattern is to restore the spatial pattern in a landscape by planning and designing some key points, lines, local (surface) or other spatial combinations, so as to protect and restore biodiversity and maintain the integrity of ecosystem structure and process. To achieve effective control and continuous improvement of regional ecological and environmental problems. The construction of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/29G06K9/62
CPCG06F18/2411G06F18/214
Inventor 袁少雄尹小玲黄光庆陈军宫清华王钧熊海仙黄苍平
Owner GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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