Animal geographical division method based on species spatial distribution relations

Abstract

The invention relates to an animal geographical zoning method based on species spatial distribution relations, and aims to establish a species relation network according to the overlapping area proportion of a spatial distribution range so as to identify similar species groups and form a species geographical division map. According to the method, an overlapping area proportion is determined by adopting overlapping analysis according to the distribution range and overlapping range of any two specie; indexes reflecting spatial distribution similarity are established, and a species correlation matrix is established accordingly; a species relationship network graph is generated on a graph model according to the species correlation matrix, and a community detection method is applied onto the relationship network graph to detect a plurality of closely associated species clustering communities; and finally, communities to which image pixels belong are counted according to mapping precision, so that a species geographical division map can be obtained. According to the method, the species spatial distribution range is quantified into species relations, so that the species division map to obtain can be obtained; compared with a conventional regionalization method mainly depending on expert knowledge and experience, the method is reasonable, and meanwhile, can well identify species groupsaggregated in a small range.

Description

technical field [0001] The invention relates to an animal geographical division method based on the spatial distribution relationship of species. Background technique [0002] Hettner, the founder of the regional school of geography, pointed out that a region is a division of the whole as far as its concept is concerned, and a geographical division is constantly decomposed into its parts. The study of natural geographical systems is a science that observes and studies natural complexes on the surface from a regional perspective, reveals the laws of regional differentiation, and explores the formation, development, differentiation and combination, division and merger, and interconnection of natural regional units at different scales. [0003] Due to the increasing unreasonable interference of human economic activities on the ecological environment, the global and regional ecological environment is deteriorating day by day, and a series of environmental problems such as excess...

AI Technical Summary

Problems solved by technology

In the past, related research at home and abroad mainly focused on the relationship between species richness and environmental factors and their causes. Most of them took administrative divisions as the basic research unit, and the basic unit granularity was relatively coarse.

In addition, most of the research methods are based on statistical analysis, and seldom introduce spatial structure patterns for quantitative analysis

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