干旱区生态环境知识资源中心(Arid): 基于RS和GIS的敦煌市沙漠化动态监测

Arid

	基于RS和GIS的敦煌市沙漠化动态监测
其他题名	Desertification Monitoring of Dunhuang City Based on GIS and RS
	尚立照; 陈翔舜; 王小军; 高斌斌; 丁乾平; 赵洪民
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2016
卷号	36 期号:2 页码:125-128,135
中文摘要	[目的]研究敦煌市沙漠化动态变化特征,为敦煌市沙漠化防治和文物保护工作提供理论依据。 [方法]基于遥感和GIS技术,选取2004和2009年的TM和ETM遥感数据进行调查判读。[结果]敦煌市沙漠化土地面积为1.97*10~6 hm~2,占土地总面积的73.8%;研究期内沙漠化土地总面积减少9102.59hm~2,年变化率-0.001%;极重度沙漠化向重度、中度和轻度沙漠化转变,沙漠化程度整体减轻。[结论]研究区植被盖度有所好转,沙漠化程度在减缓,但土地沙漠化趋势尚未根本改变,防沙治沙仍是敦煌市的长期任务。
英文摘要	[Objective]Studying the dynamic change of desertification in Dunhuang City in order to provide a support for desertification prevention and cultural relics protection.[Methods]Based on the remote sensing data and geographic information system,the TM and ETM images were determined by field investigation and man-machine interactive interpretation.Aerial land desertification information of Dunhuang City from 2004 to 2009 were extracted.[Results]There were 1.97*10~6 hm~2 desertification land in the whole city,covered 73.8%of the total land area.The total desertification land was reduced about 9102.59hm~2 during the study period,the annual decrease ratio is-0.001%.Very severe desertification lands reversed to severe,moderate and light desertification land.The desertification was alleviated largely.[Conclusion]Vegetation coverage is improved in the study area,which made the desertification slowed down and reversed,but desertification had not been fundamentally changed,desertification prevention will still be a long-term task for Dunhuang City.
中文关键词	沙漠化 ; 动态监测 ; 敦煌市
英文关键词	desertification dynamics monitoring Dunhuang City
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:5694639
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234927
作者单位	甘肃省生态环境监测监督管理局, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	尚立照,陈翔舜,王小军,等. 基于RS和GIS的敦煌市沙漠化动态监测[J],2016,36(2):125-128,135.
APA	尚立照,陈翔舜,王小军,高斌斌,丁乾平,&赵洪民.(2016).基于RS和GIS的敦煌市沙漠化动态监测.水土保持通报,36(2),125-128,135.
MLA	尚立照,et al."基于RS和GIS的敦煌市沙漠化动态监测".水土保持通报 36.2(2016):125-128,135.