摘要
在城镇化的背景下,利用PSR模型,结合熵权法,从人口变动、土地利用和产业结构3个方面入手,对湘潭市的土地生态安全评价指标体系进行了构建,对比分析得出:湘潭地区从2002年至2011年土地生态安全指数虽呈平稳上升趋势,但基本处于危险甚至恶劣状态,造成这一状态的主要原因是产业结构不合理,土地发展与城市化发展不配套.最后提出建议:优化产业结构,减小资源环境负荷,生态环境建设要与城市化进程协调一致.
In the background of urbanization, based on the PSR model and the entropy weight method, the land of Xiangtan city ecological security evaluation index system was constructed, which included the changes of population, land use and industrial structure aspects. The results show that in the Xiangtan region from 2002 to 2011 land ecological security index is basically in a risk even in bad state even though in a steady upward trend. The main reason of this result is the unreasonable industrial structure, as well as land development not matching city change development facilities. Finally l some concerted policy recommendations are put forward to optimize the industrial structure, reduce the resource environment load as well as coordinate the construction of the ecological environment with the pace of urbanization.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2013年第1期80-85,共6页
Journal of Natural Science of Hunan Normal University
基金
国家自然科学基金资助项目(41171076)
湖南省普通高校“十二五”地理专业综合改革试点资助项目(湘教通[2012]266号)
湖南省“十二五”人文地理学重点建设学科资助项目(湘教通[2011]76号)
关键词
城镇化
PSR模型
熵权法
土地生态安全
湘潭市
urbanization
PSR model
entropy weight method
land ecological security
Xiangtan city
