Ecological safety evaluating method based on fishing net model

Abstract

The invention relates to an ecological safety evaluating method based on a fishing net model. Through a remote sensing technology, an ARCGIS10.0 and a global positioning system, on the basis of data collecting, editing and preprocessing, fusion of multi-source heterogeneous data is conducted for ecological safety evaluating indexes through the fishing net model, fishing net units serve as ecological safety evaluating units, and the ecological safety comprehensive evaluation is conducted by means of ESEI indexes. Different from the situation that administrative regions, drainage basins, landscapes and the like usually serve as the evaluating units in similar research, ecological safety evaluation is conducted through a simplex data model (grid or vector); when the finishing net units serve as the evaluating units, the ecological safety difference in the administrative regions, the drainage basins and the landscapes can be easily revealed; when a finishing net serves as the data model, the multi-source heterogeneous data can be easily fused, the objectivity of ecological safety evaluation can be further improved, and the method has great theory and application significance in sustainable use of the ecological environment.

Description

technical field [0001] The invention relates to the field of ecological security monitoring and evaluation, in particular to a method for evaluating ecological security after merging multi-source heterogeneous data by using a fishing net model. Background technique [0002] With the acceleration of the globalization process and the continuous development of human society, various ecological and environmental problems have also emerged recently, such as smog, sandstorms, forest degradation and disappearance, soil erosion and soil erosion, land desertification, water resource depletion, and biodiversity. These problems have caused serious threats to the ecological environment on which human beings depend. In recent years, the protection of human living environment, scientific and rational management and utilization of natural resources, and protection of ecosystem service functions have attracted widespread attention from scholars at home and abroad. [0003] Usually, the res...

AI Technical Summary

Problems solved by technology

[0004] In recent years, scholars at home and abroad have conducted a lot of research and practice on ecological security, and have made important progress, but there are still many problems, such as the evaluation unit is too macroscopic, and administrative units, landscape units, watershed units, etc. The difference in ecological security cannot be expressed; and the evaluation involves many factors such as nature and humanities, the data structure is complex and diverse, and there is a lack of efficient multi-source heterogeneous data fusion methods for ecological security evaluation cases, and the automation level in the evaluation process is low and efficiency is low. Low, poor evaluation objectivity, etc.

Images