当前位置: 首页 > 文章 > 基于GIS的土地生态安全综合评价——以合水县为例 甘肃农业大学学报 2015 (1) 147-153
Position: Home > Articles > Land ecological security evaluation based on 3S technology in Heshui County Journal of Gansu Agricultural University 2015 (1) 147-153

基于GIS的土地生态安全综合评价——以合水县为例

作  者:
王娟;盖艾鸿;谢保鹏;孙林军;刘静
单  位:
甘肃农业大学资源与环境学院
关键词:
土地生态系统;生态安全;3S;生态保护;合水县
摘  要:
选取植被指数、土地生态系统服务价值、土地生态风险强度指数和环境地质综合评价指数作为评价指标,建立基于GIS的合水县土地生态安全评价系统,得到合水县土地生态安全综合指数分布及其变化图.研究表明:合水县土地生态安全程度较高的地区主要分布在城镇较少,而林地分布较多的地区,城镇密集地区土地生态安全程度较低.1990~2010年间合水县土地生态安全程度总体提高,其分布及变化情况与人类的生产活动密切相关,主要受产业布局政策、生态保护措施的影响.
译  名:
Land ecological security evaluation based on 3S technology in Heshui County
作  者:
WANG Juan;GAI Ai-hong;XIE Bao-peng;SUN Lin-jun;LIU Jing;College of Resources and Environmental Sciences,Gansu Agricultural University;
关键词:
land ecosystem;;ecological security;;3S;;ecological protection;;Heshui County
摘  要:
The vegetation index,land ecosystem service value,the strength of land ecological risk,the environmental and geological conditions were chosen as evaluation indexes,then the comprehensive evaluation model was established and the distribution and variation map of land ecological security indexes of Heshui County was obtained by using 3Stechnology.The results showed that,the region with less towns and more woodland had a higher degree of land ecological security,on the contrary,where with intensive towns had a lower degree of land ecological security.From 1990 to 2010,Heshui County had an overall increase in the degree of land ecological security,its distribution and changes were closely related to human activities,and mainly affected by the industrial layout policy and ecological protection measures.

相似文章

计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊