Ecological security pattern construction method

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

Active Publication Date: 2018-11-30
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still relatively few attempts to use machine

Method used

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  • Ecological security pattern construction method
  • Ecological security pattern construction method
  • Ecological security pattern construction method

Examples

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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 region or multiple regions in GIS, extract the ecological security pattern attributes of each data point, and assign the ecological security protection parameters among them. 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 t...

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Abstract

The invention discloses an ecological security pattern construction method, comprising the following steps: firstly, acquiring a plurality of data points with known attributes of protecting an ecological security pattern and a plurality of data points with known attributes as construction sites; extracting environmental variables of the data points, and training for an LR model in SPARK through the environment variables of the data points, so as to obtain a relationship between each environment variable and the ecological security pattern; applying the weight vector of each environment variable obtained from the training to GIS to obtain a target grid, and constructing an ecological security pattern prediction model based on a logistic regression model; and when an ecological security pattern is to be constructed for a certain area, acquiring the distribution map of each environmental variable in the area, and inputting the environmental variables into the ecological security pattern prediction model to obtain an ecological safety pattern probability distribution map. The method can be used to accurately construct the ecological security pattern of each region, and has a relativelyhigh reference value in practical use.

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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IPC IPC(8): G06F17/30G06K9/62
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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