摘要
从建设环境友好型小城镇的角度出发,以国内关于区域土地生态安全研究成果为基础,依据扩展型PSR框架模型,并结合孝昌县区域环境及土地利用结构特点,建立孝昌县土地生态环境安全评价的指标体系,运用层次分析法(AHP)与综合评分法计算研究区各乡镇土地生态安全指数。结果表明,孝昌县大部分地区土地生态安全处于敏感状态,在今后的利用过程中需加强保护、改善土地生态环境,以促进孝昌县土地可持续利用。
In view of constructing environment-friendly small town,based on the domestic achievements about the regional land ecological security,according to the PSR framework of the extended model,and combining with the characteristics of regional environment and land use structure in Xiaochang County,an index system for security evaluation of land ecological environment in Xiaochang County was established.The study also used analytic hierarchy process method（AHP） and comprehensive evaluation method to calculate the land ecological security index for each town and county.The results showed that the land ecological security in most of area in Xiaochang County were in a sensitive state.So,in order to promote the sustainable land use in Xiaochang County,the land ecological security in Xiaochang County should be more protected and improved during the process of use in the future.
出处
《湖南农业科学》
2011年第1期58-61,65,共5页
Hunan Agricultural Sciences
关键词
土地生态环境
评价
环境友好
land ecological environment
evaluation
environment-friendly
