Study on the Land Ecological Security and early warning in Shenzhen

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Wang, Meijuan^1 ; Li, Yang^2 ; Huai, Yangyang^1 ; Wang, Xin^3

Shandong Women's University, Jinan, China^1

Jinan Urban Planning and Design Institute, Jinan, China^2

Shandong Management University, Jinan, China^3

关键词: Comprehensive evaluation model;    Construction land;    Ecological conditions;    Ecological pressure;    Ecological security;    Security and stability;    Shenzhen;    TOPSIS models;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/3/032068/pdf
DOI  :  10.1088/1755-1315/300/3/032068

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Land is the foundation of human survival and development, and safe land ecological condition is the decisive factor in ensuring security and stability. As the land use intensity continues to deepen and the scope continues to expand, its irrational use has caused a series of ecological security problems. Therefore, studying the relationship between land use and ecological security in the region has become an urgent problem for the current land science. Based on the improved TOPSIS method, this paper constructs a comprehensive evaluation model of urban land ecological security. The results show that land ecological pressure contributes the most to the land ecological security system. The increase of urban population density, the expansion of construction land and the increase of industrial waste emissions will affect the ecological security of the land; since 2004, Shenzhen's land ecological security and development has gone through several stages, from primary ecological coordination to good ecological coordination - ecology Hysteresis type. It is necessary to vigorously establish and improve the land ecosystem. Besides, we need to actively carry out land ecological security warning supervision and promote the maintenance of land ecosystems and the sustainable use of land resources in Shenzhen.