Spatial-Temporal Evolution Characteristics and Countermeasure of Ecological Security in the Beijing-Tianjin-Hebei Urban Agglomeration
Established an ecological security indicator system based on the DPSIR framework and analyzed the spatial-temporal evolution characteristics of the ecological security pattern in Beijing-Tianjin-Hebei urban agglomeration from 2003 to 2022.The key factors affecting ecological securi-ty are identified by combining the DPSIR sub index and factor analysis method.The results show that:In terms of time,the comprehensive index of ecological security in the Beijing-Tianjin-Hebei urban agglomeration from 2003 to 2022 has been in the range of(0.4,0.6]for a long time,and the level of ecological security is between the critical safety level and the general safety level.However,the overall level of ecological security continues to rise and develops towards a relatively safe trend;In terms of space,there are significant differences in the evolution trend of ecological security levels in the Beijing-Tianjin-Hebei region,and the ecological security pattern shows a transition from a circle distribution of"high in the center and low in the surrounding areas"to a"T"distribution of"high in the northwest and low in the southeast".To build a strong ecological se-curity barrier,it is necessary to adhere to ecological priority and green development,increase tech-nical support and policy design,and improve the regional joint construction,prevention,and gov-ernance mechanism.
ecological securitytemporal and spatial evolutionBeijing-Tianjin-Hebei urban ag-glomeration
NETL
NSTL
万方数据
