Study on Ecological Security Evaluation Index System of the Yellow River Basin

^1. School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China ;
^2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

^* Corresponding author: hntianyuxin@163.com

Abstract

As an important energy base and ecological barrier in China, the ecological security of the Yellow River Basin has a very important strategic position in the pattern of high-quality development, but it is threatened by human activities and climate change. In order to evaluate the degree of ecological security in the Yellow River Basin and clarify the influencing factors of ecological security, this paper discusses the advantages and disadvantages of the existing ecological security assessment methods and models. On this basis, the system dynamics model is used to describe the process of ecological security threats, identify the key factors that threaten ecological security, and then sort out the ecological security assessment indicators. The ecological security assessment model composed of pressure(P), state(S), hidden dangers(D), response(R) and management (M) (PSDRM) indicators is constructed, and the ecological security assessment methods and processes are improved to provide theoretical guidance and technical support for improving the ecological security assessment of the basin.