作 者：
魏伟;石培基;周俊菊;雷莉;魏晓旭;颉斌斌
单 位：
甘肃省水利厅石羊河流域管理局;西北师范大学地理与环境科学学院;兰州城市学院城市经济与旅游文化学院
关键词：
土地生态敏感性;ArcGIS;区统计;石羊河流域
摘 要：
以石羊河流域为研究区,以遥感数据为基础数据源,采用ArcGIS区统计方法进行土地生态敏感性评价,通过构建石羊河流域水土流失、土壤盐渍化、土壤沙漠化、生物多样性四个定量评价指标,利用栅格叠置分析方法定量研究了石羊河流域土地敏感性特征,生态敏感性等级及影响因素。研究结果表明,极敏感和高敏感区占到了全流域总面积的74.68%,低度敏感区和不敏感区分别占石羊河流域总面积的10.59%和0.88%。最后,针对石羊河流域土地生态敏感性分区的特点,通过综合研究结果和相关资料提出了环境保护和生态建设的相关对策,为指导石羊河流域生态治理提供科学依据。
译 名：
Land Ecological Sensitivity Evaluation of Shiyang River Basin Based on Zonal Statistics
作 者：
WEI Wei;SHI Peiji;ZHOU Junju;LEI Li;WEI Xiaoxu;XIE Binbin;College of Geographical and Environment Science,Northwest Normal University;Management Bureau of Shiyang River Basin,Gansu Provincial Department of Water Resources;School of Urban Economics and Tourism Culture,Lanzhou City University;
关键词：
land ecological sensitivity;;ArcGIS;;zonal statistics;;Shiyang River basin
摘 要：
Shiyang River basin was chose as the study area,on the basis of remote sensing data sources,ArcGIS zonal statistical method was adopted to improve the land ecological sensitivity evaluation through building the water loss,soil erosion,soil salinization,desertification and soil biodiversity as quantitative evaluation indexes.The land sensitivity characteristic and influence factors of Shiyang River basin were analyzed using raster overlay analysis.The results show that the extremely and highly sensitive area of the basin accounts for 74.68% of total area;the low sensitivity and insensitivity area accounts for 10.59%and 0.88% of total area,respectively.Finally,in view of the characteristics of land ecological sensitivity division of Shiyang River basin,some policies are proposed according to the research results and other materials in order to provide some scientific evidences for ecological management of Shiyang River basin in the future.
