基于GIS的仁怀市生态敏感性评价  

Appraisal of Eco-sensitivity in Renhuai City Based on GIS

作　　者：张朝琼[1] 郜红娟[2] 张帮云[1] 

机构地区：[1]贵州师范大学地理与环境科学学院,贵阳550001 [2]贵州师范学院地理与旅游学院,贵阳550018

出　　处：《水土保持研究》2013年第4期179-182,共4页Research of Soil and Water Conservation

基　　金：国家自然科学基金"亚喀斯特准生态脆弱区自然特征;演替状况与生态重建(以贵州为例)"(41161002);贵州省软科学研究项目"贵州工业化;城市化加快推进时期耕地保护研究"(黔科合体R字[2012]2030号)

摘　　要：区域生态敏感性评价对于制定区域社会经济发展政策,有效进行环境管理具有重要作用。利用GIS技术,以贵州省仁怀市为研究对象,运用单因子敏感性评价和综合敏感性评价两种方法,选择土地利用、高程、坡度、水系、地质灾害作为评价因子,对仁怀市生态敏感性及其空间分布进行了研究。结果表明:极敏感区占仁怀市总面积的1.43%,主要分布在高海拔山区;敏感区占17.76%,分布在沿河地区以及山麓地区;低敏感区占57.41%,分布在中低山地区;不敏感区占23.40%,主要分布在城镇区域。结合生态敏感性,提出了各区块的生态环境建设和保护对策,以期为仁怀市区域生态环境保护提供决策依据。Regional ecological sensitivity analysis is an effective tool for making regional social and economic development policies and environmental management.Taking Renhuai City of Guizhou Province as the research area,sensibility and its spatial distribution were studied in views of the sensitivities to land use,elevation,slope,water system,geological disasters under support of GIS technologies.Single and comprehensive element sensitivity assessment is used in the study.Results show that the extreme sensitive area accounts for 1.43% of the total area,which mainly lies in high altitude mountain.The sensitive area accounts for 17.76%,which distributes in valley and foothills.The low sensitive area accounts for 57.41%,which distributes in low mountain.The insensitive area accounts for 23.40%,which distributes in urban areas.By combining with the result of eco-environmental sensitivity assessment,countermeasures for eco-environmental construction and protection of each of the areas are proposed and a basis for government making policy is provided.

关 键 词：生态敏感性 仁怀市 GIS 

分 类 号：X826[环境科学与工程—环境工程]