基于GIS的张家口市土地生态敏感性评价  

Evaluation of Land Ecological Sensitivity in Zhangjiakou City Based on GIS

作　　者：罗义[1] 刘伟强 王霞[1] 刘文焕 Luo Yi;Liu Weiqiang;Wang Xia;Liu Wenhuan(School of Municipal and Environmental Engineering,Hebei University of Civil Engineering and Architecture,Zhangjiakou,Hebei 075000,China)

机构地区：[1]河北建筑工程学院市政与环境工程系,河北张家口075000

出　　处：《绿色科技》2023年第10期31-34,51,共5页Journal of Green Science and Technology

基　　金：河北建筑工程学院研究生创新基金项目(编号:XY202240)。

摘　　要：以河北省张家口市为研究对象,基于GIS分析技术,结合张家口市生态经济现状,选取植被覆盖度、坡度、水环境、土地利用类型、人口密度5个敏感性因子,运用单要素敏感性评价和综合敏感性评价2种方法对张家口市土地生态敏感性进行了评价,以厘清不同的土地生态环境敏感区的空间分布格局。结果表明:张家口市高度敏感区与中度敏感区面积为13922.97 km^(2),占总面积的38.5%;可进行适度开发利用的面积,低度敏感区面积共12217.16 km^(2),占总面积的33.7%;可适宜高强度开发利用的面积的极低敏感区面积共10080.8 km^(2),占总面积的27.8%,而作为重点保护区的面积为5120.69 km^(2),占总面积的14.2%。Taking Zhangjiakou City of Hebei Province as the research object,based on GIS analysis technology and combined with the ecological and economic status of Zhangjiakou city,five sensitivity factors including vegetation coverage,slope,water environment,land use types and population density were selected to evaluate the land ecological sensitivity of Zhangjiakou City by single factor sensitivity evaluation and comprehensive sensitivity evaluation in order to clarify the spatial distribution patterns of different sensitive areas of land ecological environment.The results showed that the area of highly and moderately sensitive areas in Zhangjiakou was 13922.97 km^(2),accounting for 38.5%of the total area.The area that can be properly developed and utilized is 12217.16 km^(2),accounting for 33.7%of the total area.The extremely low sensitive area suitable for high-intensity development and utilization covers a total area of 10080.8 km^(2),accounting for 27.8%of the total area,while the area as key conservation area is 5120.69 km^(2),accounting for 14.2%of the total area.

关 键 词：生态环境 层次分析法 敏感性评价 张家口市 

分 类 号：X171.4[环境科学与工程—环境科学]