干旱区生态环境知识资源中心(Arid): 近30年来黄河上游荒漠化时空演变及成因研究

Arid

	近30年来黄河上游荒漠化时空演变及成因研究
其他题名	Analysis on time-space evolution of desertification and its causes in Yellow River during recent 30 years
	李任时 1; 邵治涛 2; 张红红 1; 安志宏 2
来源期刊	世界地质
ISSN	1004-5589
出版年	2014
卷号	33 期号:2 页码:494-503
中文摘要	黄河上游地区是中国土地荒漠化的重灾区之一,是中国荒漠化监测和治理工作的重点区域。本文采用MSS、TM、ETM、CBERS四期数据,基于RS和GIS技术,主要采用人工目视解译方法,辅助野外调查验证,得到四期解译数据。对三个阶段的数据进行空间分析,研究1975年到2007年黄河上游荒漠化的时空分布特征,探索演变成因,并结合该区域气温和降水数据,着重分析了其与荒漠化演变进程的关系。结果表明:19752007年,从整体变化趋势看,黄河上游地区土地荒漠化面积共增加了3 499. 76 km~2,其中沙质荒漠化面积增加3 407. 62 km~2,盐碱质荒漠化面积增加了92. 14 km~2。从三个阶段的变化趋势看,呈现先增加后减少的发展趋势,2000年之前是荒漠化的增加时期,2000年之后是荒漠化的减少时期。结合气温和降水量数据叠加分析得出,气候变化是黄河上游荒漠化发展的重要原因;地质背景是内因,人类活动起催化作用。
英文摘要	Upper reaches of Yellow River have been one of the worst-hit areas of land desertification and of the key areas of desertification monitoring and handing operation in China. Based on RS and GIS technologies, the authors used artificial visual interpretation method and the field survey to obtain interpreting data for 4 periods by MSS-, TM-, ETM- and CBERS images. The authors studied the situation and distribution of desertification and the space-time evolutionary process in the upper reaches of the Yellow River from 1975 to 2007. Then, with the regional air temperature and precipitation data,the authors analyzed their relationship with the evolutionary process of desertification. The results showed that the desertification of the upper reaches of Yellow River increased 3 499. 76 km~2 totally from 1975 to 2007, thereinto, sandy desertification area increased 3 407. 62 km~2 and the saline desertification area increased 92. 14 km~2. The development trend of the desertification firstly increased and then decreased from the three stages. The desertification increased before 2000 and decreased after 2000. Combined with the analysis of temperature and precipitation data,it was considered that the climatic change was one for the important reasons for the development of land desertification of the upper reaches of Yellow River, and its geological background was the internal cause and human activity was the catalytic role.
中文关键词	黄河上游 ; 荒漠化演变 ; 遥感
英文关键词	GIS upstream of Yellow River desertification evolution remote sensing GIS
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING ; ENVIRONMENTAL SCIENCES
WOS研究方向	Remote Sensing ; Environmental Sciences & Ecology
CSCD记录号	CSCD:5175040
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231690
作者单位	1.吉林省地质调查院, 长春, 吉林 130061, 中国; 2.中国国土资源航空物探遥感中心, 北京 100083, 中国
推荐引用方式 GB/T 7714	李任时,邵治涛,张红红,等. 近30年来黄河上游荒漠化时空演变及成因研究[J],2014,33(2):494-503.
APA	李任时,邵治涛,张红红,&安志宏.(2014).近30年来黄河上游荒漠化时空演变及成因研究.世界地质,33(2),494-503.
MLA	李任时,et al."近30年来黄河上游荒漠化时空演变及成因研究".世界地质 33.2(2014):494-503.