近25年阿克苏绿洲土地利用时空变化及其驱动力分析  

Land Use/Cover Temporal-spatial Change and Driving Force Study in Aksu Oasis During the Last 25 Years

作　　者：段峥嵘[1] 祖拜代·木依布拉 夏建新[1] 刘荣霞[2] DUAN Zhengrong;ZUBAIDAI· Muyibula;XIA Jianxin;LIU Rongxia(College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China;The Administrative Centre for China＇s Agenda 21 ,Beijing 100038 ,China)

机构地区：[1]中央民族大学生命与环境科学学院,北京100081 [2]中国21世纪议程管理中心,北京100038

出　　处：《应用基础与工程科学学报》2018年第2期413-426,共14页Journal of Basic Science and Engineering

基　　金：中央民族大学少数民族事业协同创新中心项目资助

摘　　要：选择干旱区典型绿洲——阿克苏绿洲为研究对象,以1991年、2001年和2016年3期TM/ETM＋遥感影像为数据基础,采用遥感（RS）和地理信息系统（GIS）相结合的方法,结合野外考察数据,选取适宜的分类指标体系,运用监督分类的方法,分析阿克苏绿洲土地利用/土地覆被的空间动态变化特征,并结合社会经济统计数据,分析影响绿洲LUCC的驱动因子.研究结果表明：（1）1991～2001年草地和未利用地呈减少趋势,而林地和耕地呈现明显的增加趋势,分别增加了1 206.6km2和883.46km2.2001～2016年面积增加最多的是耕地和建设用地,分别增加了3 225.54km2和243.1km2.在25年间,未利用地和草地一直呈现不断下降的趋势,分别减少了2 542.64km2和2 696.09km2;（2）人口的迅速增长和经济快速发展是研究区土地利用变化的主要驱动力.A typical arid area： Aksu oaisis is taken as a case study in this paper,and using TM/ETM＋ remote sensing images data in 1991,2001 and 2016,the complex method of combing Remote Sense（RS） and Geographic Information System（GIS） is applied,basing on data obtained in field spots,selecting the proper indicator system,and adopting supervised method,to analyze the temporal-spatial change of the land use and cover in the Aksu oaisis. Finally,the driving forces of oasis LUCC are investgated. The research results indicate：（1） the areas of grassland and wasteland have decreased from 1991 to 2001,at the same time,the areas of woodland and farmland have increased by 1 206. 6 and 883. 46 km2. From 2001 to 2016,the fastest increasing types were farmland and urban development land,which areas have increased by 3 225. 54 and243. 1 km2. In the past over 25 years,the changing trend of wasteland and grassland was rapidly declined,decreasing by 2 542. 64 and 2 696. 09 km2 respectively.（2） The main driving forces are the quickly growing population and rapid economy development in the study area.

关 键 词：绿洲 LUCC 转移矩阵 土地覆被转类指数 驱动力 

分 类 号：P237[天文地球—摄影测量与遥感]