Ecological Security Evaluation of Lankao County in the Yellow River Basin Based on DPSIR Model
To explore the ecological security changes of Lankao County in the Yellow River Basin,the quantitative evaluation of ecological security was conducted,and the factors limiting regional ecological security were identified.Using the DPSIR model as the framework,5 criteria layers were established,and 29 indicators were selected to construct an ecological security evaluation index system.The entropy method and comprehensive index method were used to obtain the comprehensive index and level of eco-logical security.The results showed that the ecological security index of Lankao County showed a trend of gradually increasing from low to high,with the ecological security level shifting from"less safe"to"sa-fer",and the police situation shifting from"serious police"to"moderate police";from the perspective of subsystems,the state,impact,and driving force contributed the most to regional ecological security,while the response and pressure contributions were relatively low.The structure and function of the re-gional ecosystem were in a stable state,and the ecological security in the region was affected by factors such as the level of economic development,human activity disturbance and industrial pollutant emissions.
ecological security evaluationDPSIR modelYellow River BasinLankao County
NETL
NSTL
万方数据
维普
