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	嫩江下游土地沙化的时空变化基于MODIS数据的遥感分析
其他题名	Spatiotemporal change of desertification in lower reaches of Nenjiang River:a remote sensing analysis based on MODIS data
	杜绍敏 1; 龚文峰 1; 杜崇 1; 杜春晓 2
ISSN	1004-4574
出版年	2009
卷号	18 期号:5 页码:131-137
中文摘要	以2000,2004和2008年的MODIS数据为主要数据源,以嫩江流域下游为研究对象,在Arc-GIS9.0和ERDAS IMAGE9.0等软件支持下,建立沙化模型,并对沙化进行了信息提取与分析;借助ArcGIS强大的空间分析功能,完成了土地沙漠化的定量分析及其时空变化规律,在此基础上进一步探讨了土地沙化的过程、机理和成因.结果表明:研究区域沙漠化土地以轻度和中度沙漠化土地为主;重度和极重度沙漠化土地的年增长率较大,水域的年减少率最大;重度、极重度沙漠化土地主要向较低等级的沙漠化土地和水域转变,呈现一定的逆转移.
英文摘要	Taking the MODIS data in the years 2000, 2004 and 2008 as data source and the lower reaches of Nen-jiang River as research object the model was made and the information was extracted by using the software of Arc-GIS 9.0 and ERDAS IMAGE9.0. Based on the powerful spatial analyst function of ArcGIS, the desertification of land in study area was quantitatively analyzed and the spatial-temporal changes regularity of desertification was studied. The procedure, mechanism and cause of desertification were explored. The results show that the light desertification land is the major portion of the desertification land in study area; the annual increasing rate of severe and very severe class of desertification land is larger, the annual decreasing rate of water region is largest; the desertification land type is changed from severe and very severe class of desertification land to lower class of desertification land and to water region showing an inverse transformation.
中文关键词	土地沙漠化 ; 时空变化 ; 遥感分析
英文关键词	MODIS MODIS land desertification spatial-temporal change remote sensing analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY ; REMOTE SENSING
WOS研究方向	Mineralogy ; Remote Sensing
CSCD记录号	CSCD:3780102
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224656
作者单位	1.黑龙江大学水利电力学院, 哈尔滨, 黑龙江 150086, 中国; 2.黑龙江省904水文地质工程地质勘查院, 双城, 黑龙江 150010, 中国
推荐引用方式 GB/T 7714	杜绍敏,龚文峰,杜崇,等. 嫩江下游土地沙化的时空变化基于MODIS数据的遥感分析[J],2009,18(5):131-137.
APA	杜绍敏,龚文峰,杜崇,&杜春晓.(2009).嫩江下游土地沙化的时空变化基于MODIS数据的遥感分析.,18(5),131-137.
MLA	杜绍敏,et al."嫩江下游土地沙化的时空变化基于MODIS数据的遥感分析".18.5(2009):131-137.