A method for comprehensive measurement of national conditions and quality of regional natural ecological geography
A technology for comprehensive measurement and habitat quality, applied in geographic information databases, data processing applications, instruments, etc., can solve unsatisfied problems and achieve the effect of comprehensive cartography and analysis
Active Publication Date: 2019-08-23
CHINESE ACAD OF SURVEYING & MAPPING
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Problems solved by technology
At present, the PSR model is mainly used in the analysis and evaluation of landscape ecology. The adopted landscape index / index is classified according to pressure, state, and response, and the indicators in each category are qualitatively evaluated. There is still a lack of a PSR model that can effectively use The quantitative analysis method of internal logical relationship fails to meet the needs of comprehensive quantitative analysis of regional natural ecological geography national conditions and quality
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[0026] Embodiments of the present invention are described below with reference to the drawings, in which like parts are denoted by like reference numerals.
[0027] Such as figure 1 As shown, in the ecological environment assessment, the spread of ecological pressure will have a negative impact on the ecological state, while the environmental protection measures adopted by the ecological response are mainly used to alleviate the ecological pressure, thus having a positive impact on the ecological state. The invention proposes a quantitative analysis model based on PSR.
[0028] Depend on figure 2 Shown, the present invention proposes natural ecological geography national condition quality comprehensive measure method to comprise the following steps:
[0029] S1. Spatial data collection: Collect spatial data related to the current geographical conditions of land use (coverage), transportation network, impervious ground surface, and nature reserves as input data for ecologica...
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The invention provides a comprehensive measuring method for regional natural ecological geographical condition quality. The method includes: dividing a to-be-evaluated region with standard grids, using each grid unit as the basic unit, and performing space intersection analysis on the basic units and collected space data; calculating the spatial distribution density of a pressure source on each unit grid, and normalizing the pressure density according to the spatial distribution density to generate a pressure source strength grid distribution graph; calculating the habitat quality index on each unit grid; setting the spatial propagation model of ecological pressure; setting the influence factors of the pressure sources, and calculating the ecological pressure index on each unit grid to obtain the spatial grids of the pressure; calculating the response index on each unit grid to obtain the spatial grids of the ecological response indexes; calculating the comprehensive habitat quality index on each unit grid to generate the grid distribution graph of the comprehensive habitat quality indexes. The comprehensive measuring method can effectively integrate the logic relations among the ecological pressure, states and response factors, and the requirements of habitat quality comprehensive mapping and analysis are satisfied.
Description
technical field [0001] The invention relates to the field of statistical analysis and monitoring of regional ecological environment, geography, and national conditions information, in particular to a method for comprehensively measuring the quality of regional natural, ecological, geography, and national conditions based on three aspects of ecological pressure, state, and response. Background technique [0002] At present, the relative shortage of energy resources and the weak carrying capacity of the ecological environment have become the basic national conditions of our country. National geography is an important basic national condition, which is to analyze, study and describe the national condition from the perspective of geography. The national conditions of natural ecological geography take the spatial changes of natural, biological and human phenomena on the earth's surface and their interrelationships and characteristics as the basic content, and make a macroscopic, ...
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IPC IPC(8): G06F16/29G06T11/20G06Q50/26
Inventor 侯伟翟亮乔庆华桑会勇冯志贤刘佳张英
Owner CHINESE ACAD OF SURVEYING & MAPPING