Construction method of multi-type biodiversity comprehensive evaluation index system

Abstract

The invention discloses a construction method of a multi-type biodiversity comprehensive evaluation index system. The construction method is characterized by comprising the following steps: step step 1), constructing a comprehensive evaluation index system framework; step 2), screening out indexes capable of well reflecting biodiversity based on the number of biological individuals, functional characters and phylogenetic characteristics; step 3): determining a definition standard of each index in the biodiversity comprehensive evaluation index system by combining the actual situation of the biocenosis, and calculating a specific numerical value of each biodiversity evaluation index; step 4), calculating the weight of each index by using a principal component analysis method; and step 5), after the evaluation value of each single index and the weight thereof are obtained, performing calculating by using a superposition index method to obtain a multi-type biodiversity comprehensive index. According to the method, the technical problem that a comprehensive multi-type biodiversity quantitative evaluation method lacks is solved, and a systematic and effective biodiversity protection strategy is established.

Description

technical field [0001] The invention relates to the technical field of biodiversity protection, in particular to a method for constructing a multi-type biodiversity comprehensive evaluation index system. Background technique [0002] Biodiversity refers to the synthesis of ecological complexes formed by organisms and their environments in an ecosystem and various ecological processes related to it. From the perspective of the number of organisms, functions, and phylogenetic relationships, biodiversity is divided into multiple levels: species diversity, functional diversity, and phylogenetic diversity. Species diversity is at the species level, based on species type, number, richness and evenness to reflect the status of species diversity. At the level of functional traits, functional diversity reflects the status of functional diversity based on the differences in functional traits among species. At the level of species evolution relationship, phylogenetic diversity reflec...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies, to provide a method for constructing a multi-type biodiversity comprehensive assessment index system, to solve the technical problem of lack of comprehensive multi-type biodiversity quantitative assessment methods, and to establish a systematic and effective biodiversity protection strategy

Images