干旱区生态环境知识资源中心(Arid): 锡林郭勒盟北五旗近5年沙漠化过程及成因分析

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	锡林郭勒盟北五旗近5年沙漠化过程及成因分析
其他题名	Dynamic Changes of Desertification Land in the Northern Xilinguole Grassland
	马绍休; 王涛; 薛娴; 封建民; 郭坚
ISSN	1003-7578
出版年	2007
卷号	21 期号:3 页码:77-82
中文摘要	本文在收集前人研究成果和野外调查的基础上，运用RS和GIS技术，以2000和2005年具有相同时相（秋季）的两期TM影像为信息源，对锡林郭勒盟北部五个旗、市地区的沙漠化土地进行了动态监测和分析。研究结果表明：近5a来研究区土地沙漠化总体呈上升扩展的趋势，5a来沙漠化土地面积增加了1366．057km^2，其中轻度、中度、重度沙漠化土地面积分别增加：239．806km^2、1025．393km^2、850．396km^2，与此相反严重沙漠化土地面积减少了749．539km^2；地表疏松的沙物质，为土地沙漠化发展提供了丰富的物质基础，不合理的人类活动加速了沙漠化的发展。
英文摘要	Basing on the field survey and TM images of 2000 and 2005 and by using digital method of remote sensing and geographical information system techniques, the dynamic changes of sandy desertification land of the xilinguole grassland were analyzed;The adopted data in this study were remote sensing data of sandy land in 2000 and 2005 and the data in 2005 came from the interpretation of composite Landsat 5 images of bands 4,3 and 2 （R, G, B） according to the local conditions and land use status of sandy desertification. In order to minimize possible interpretation errors,a set of interpretation indicators was established based on field investigation. The area measurements of these types in the study were made using the statistics function of GIS. The results indicated that the development and reversion of sandy desertification co-exited in the study area ,Where the area of sandy desertification land increased by 1366. 057 from 2000 to 2005 according serious of sandy desertification degree, among which the lightly sandy desertification increased 239. 806 km^2, moderate sandy desertification increased 1025. 393 km^2 and severe sandy desertification increased 850. 396 km^2 , however the very severe sandy desertification decreased 749. 539 km^2. Man＇ s behavior accelerated sandy desertification, in generally, the status of sandy desertification in the north Xilinguole grassland was still serious.
中文关键词	锡盟北五旗 ; 沙漠化土地 ; 动态变化 ; 人类活动
英文关键词	xilinguole grassland sandy desertification land dynamic change man＇ s behavior
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2748556
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221034
作者单位	中国科学院寒区旱区环境与工程研究所, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	马绍休,王涛,薛娴,等. 锡林郭勒盟北五旗近5年沙漠化过程及成因分析[J]. 中国科学院西北生态环境资源研究院,2007,21(3):77-82.
APA	马绍休,王涛,薛娴,封建民,&郭坚.(2007).锡林郭勒盟北五旗近5年沙漠化过程及成因分析.,21(3),77-82.
MLA	马绍休,et al."锡林郭勒盟北五旗近5年沙漠化过程及成因分析".21.3(2007):77-82.