摘要
以连云港市为研究区,根据“压力-状态-响应(PSR)”模型,结合研究区现实情况,构建土地生态安全评价指标体系,利用主客观综合赋权法确定各评价指标权重,最后依据综合指数法构建连云港市土地生态安全评价模型,对2000—2015年的连云港市土地生态安全时空变化情况进行分析并提出建议。结果表明,2000—2015年,连云港市土地生态安全状况整体向好,下辖各区县土地生态安全状况空间差异性明显。2000—2005年,连云港市西部东海县土地生态安全状况改善明显,其土地安全等级由Ⅱ不安全级提升到Ⅳ良好级;2005—2010年,连云港市东部和南部地区土地生态安全等级均有所提高;到2015年,连云港市大部地区土地生态安全等级达到Ⅴ安全级。
Taking Lianyungang City as the study area,the land ecological security evaluation index system was constructed based on the“pressure-state-response(PSR)”model and the reality of the study area,the weight of each evaluation index was determined by subjective and objective comprehensive weighting method,finally,the land ecological security evaluation model of Lianyungang City was constructed according to the comprehensive index method,and the spatial-temporal changes of the land ecological security of Lianyungang City from 2000 to 2015 were analyzed and suggestions were made.The results show that from 2000 to 2015,the land ecological security status of Lianyungang City has improved,and the land ecological security status of the districts and counties under its jurisdiction has obvious spatial differences.From 2000 to 2005,the land ecological security of Donghai County in the west of Lianyungang City improved significantly,and its land security level was raised from unsafe level II to good level IV;from 2005 to 2010,the land ecological security level in the east and south of Lianyungang City was improved;by 2015,the land ecological security level in most areas of Lianyungang City reached safety level V.
作者
马健原
李劲松
Ma Jianyuan;Li Jinsong(Jiangsu Vocational Institute of Architectural Technology,Xuzhou Jiangsu 221000,China)
出处
《国土与自然资源研究》
2023年第3期47-50,共4页
Territory & Natural Resources Study
基金
江苏省高校哲学社会科学研究专题项目(2021SJB0536)
江苏建筑职业技术学院校级项目(JYQZ20-09)。
关键词
土地生态安全评价
PSR模型
连云港市
land ecological security evaluation
PSR model
Lianyungang City
作者简介
马健原(1993-),男,江苏徐州人,硕士研究生,主要从事土地信息空间分析、环境与经济评价研究。
