摘要
土地生态安全问题是区域可持续发展的核心问题之一,吉林市是东北典型的重工业城市,对吉林市土地生态安全进行科学、准确评价具有重要意义。选取19个评价指标,从压力、状态和响应3个维度构建吉林市土地生态安全评价体系,运用熵值法计算各指标的权重,得到土地生态安全综合指数,从而确定吉林市土地生态安全等级,并通过灰色模型GM(1,1)预测吉林市2022—2025年土地生态安全态势。研究结果表明:吉林市土地生态安全的综合指数呈波动上升态势,安全状况从“较不安全”过渡到“较安全”状态;预测吉林市2022—2025年的土地生态安全水平将呈现稳定上升的趋势,仍处于“较安全”状态。
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.
出处
《环境保护与循环经济》
2024年第6期51-57,共7页
environmental protection and circular economy
基金
国家自然科学基金项目“旅游型城镇‘三生’空间的演变及协同优化研究”(41801165)。
