The issue of land ecological security is one of the core issues of regional sustainable development,and Jilin City,as a typical heavy industrial city in Northeast China,and it is of great significance to carry out a scientific and accurate evaluation of land ecological security in Jilin City.In this study,19 evaluation indicators were selected to construct the evaluation system of land ecological security in Jilin City from the three dimensions of pressure,state and response.The entropy value method is applied to calculate the weight of each index to obtain the comprehensive index of land ecological security,so as to determine the land ecological security grade of Jilin City,and to predict the land ecological security posture of Jilin City in 2022-2025 through the grey model GM(1,1).The results of the study show that the comprehensive index of land ecological security in Jilin City shows a fluctuating upward trend,and the security situation is in transition from"less secure"to"more secure";it is predicted that the level of land ecological security in Jilin City in the period of 2022-2025 will show a stable upward trend,and remain in a"more secure"state.
Pressure-State-Response modelland ecological security evaluationgrey systemJilin City
NETL
NSTL
万方数据
