干旱区生态环境知识资源中心(Arid): 基于Landsat TM/ETM数据的锡林河流域土地覆盖变化

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	基于Landsat TM/ETM数据的锡林河流域土地覆盖变化
其他题名	Quantifyng Land Use and Land Cover Change in Xilin River Basin Using Multi temporal Landsat TM/ETM Sensor Data
	陈四清 1; 刘纪远 2; 庄大方 2; 肖向明 2
来源期刊	地理学报
ISSN	0375-5444
出版年	2003
卷号	58 期号:1 页码:45-52
中文摘要	根据1987年、1991年、1997年和2000年4期Landsat TM/ETM影像的土地利用／土地覆盖分类结果，运用地理信息系统空间分析方法，分析了内蒙古林河流域1987－2000年间各土地利用类型及草甸草原、典型草原、荒漠草原的数量变化和空间变化特征。分析结果显示，锡林河流域土地利用／土地覆盖变化的主要特征为草甸草原、典型草原面积的大幅减少和荒漠草原、农田和沙漠化土地面积的大幅增加及城镇的扩张。其中面积增加最大的是荒漠草原，增加了2328km~2；相当于1987年荒漠草原面积的56％。农田和城镇面积逐年增大，分别从1987年的114.3km~2和25.2km~2增加到2000年的332.1km~2和43.6km~2。面积减少最多的是羊草＋丛生禾草、羊草＋杂类草等优良高产温带典型草原类型，共减少2040km~2。草甸草原面积亦呈逐年减少的趋势，从1987年的1103km~2减少到2000年375km~2，面积减少了65.9%。农田、沙化地及城镇等非草原土地利用类型面积增加了62.5%
英文摘要	The land use/land cover change of Xilin River Basin in the past two decades was investigated thought land use/cover classification of four sets of Landsat TM/ETM images acquired on July 31,1987,August 11,1991,September 27,1997 and May 23,2000,respectively.Primarily,15sub classes land cover types were recognized,including 9grassland types at community level:F.Sibiricum steppe,S.baicalensis steppe.A.chinensis+forbs.steppe,A chinensis+bunchgrass steppe,A chinensis+Ar.frigida steppe.S grandis+A.chinensis steppe.S grandis +buchgrass steppe.S krylavii steppe,Ar frigida steppe and 6 anon grassland types;cropland,urban,urban area,wetland,desertified land,saline alkaline land,and waterbody.To make the time series land cover classification data applicable for land use/cover change quantification analysis,the cloud,waterbody and cloud shadow features were extracted from each of the raw land cover maps and overlaid as s subset map.Then the area corresponding to the subset in each land cover classification map was eliminated.After this procedure,each of the final land cover classification map of Xilin River Basin was optimized and ready for land use/ cover change detection.The main characteristics of land use/land cover change in Xilin River Basin over the past two decades were a significant decrease in area of meadow grassland,temperate grassland vs.significant increase in area of cropland,desert grassland,urban area and desertified land.From 1987to 2000.the area of both F.sibiricum meadow steppe and S.bacalensis meadow steppe decreased steadily year by year,whose net decrease was 525.5km~2 and 201.5km~2.while the area of S.krylavii desert steppe and Ar.frigida desert steppe increased year by year ,whose net increases were 1,282.7km~2 and 1,045.6km~2 respectively.The desert grassland had the greatest increase in area,i,e,2,328km~2,equal to 56%of the total area of desert grassland in 1987.The cropland and urban area increased from 114.3km~2 and 25.2km~2 in 1987 to 332.1km~2and 43.6km~2 in 2000,respectively.The A.lymus+bunchgrass steppe,A.lymus+forbs steppe had the greatest decrease in area,i,e2,040km~2.During the four periods.A.chinensis+forbs steppe was the widest distributed land cover type in 1987 and 1991,with its area was 5281.2km~and 4104.3km~2,respectively.However,in 1997and 2000,S.krylavii was the most widespread land cover type with an area of 4,109.6km~2and,4,479.1km~2.
中文关键词	LandsatTM/ETM数据 ; 土地覆盖 ; 锡林河流域 ; 气候变化 ; 土地利用/土地覆盖变化 ; 沙漠化
英文关键词	land use/land cove change Xilin River Basin Landsat TM/ETM sensor data
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1352910
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203896
作者单位	1.中国科学院遥感应用研究所, 北京 100101, 中国; 2.中国科学院地理科学与资源研究所, 北京 100101, 中国
推荐引用方式 GB/T 7714	陈四清,刘纪远,庄大方,等. 基于Landsat TM/ETM数据的锡林河流域土地覆盖变化[J]. 中国科学院地理科学与资源研究所,2003,58(1):45-52.
APA	陈四清,刘纪远,庄大方,&肖向明.(2003).基于Landsat TM/ETM数据的锡林河流域土地覆盖变化.地理学报,58(1),45-52.
MLA	陈四清,et al."基于Landsat TM/ETM数据的锡林河流域土地覆盖变化".地理学报 58.1(2003):45-52.