干旱区生态环境知识资源中心(Arid): RS analysis of glaciers change in the Heihe River Basin, Northwest China, during the recent decades

Arid

	RS analysis of glaciers change in the Heihe River Basin, Northwest China, during the recent decades
	Huai Baojuan; Li Zhongqin; Wang Shengjie; Sun Meiping; Zhou Ping; Xiao Yan
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2014
卷号	24 期号:6 页码:993-1008
英文摘要	The Heihe River Basin is the second largest inland river basin in Northwest China and it is also a hotspot in arid hydrology, water resources and other aspects of researches in cold regions. In addition, the Heihe River Basin has complete landscape, moderate watershed size, and typical social ecological environmental problems. So far, there has been no detailed assessment of glaciers change information of the whole river basin. 1:50,000 topographic map data, Landsat TM/ETM+ remote sensing images and digital elevation model data were used in this research. Through integrated computer automatic interpretation and visual interpretation methods, the object-oriented image feature extraction method was applied to extract glacier outline information. Glaciers change data were derived from analysis,and the glacier variation and its response to climate change in the period 1956/1963-2007/2011 were also analyzed. The results show that: (1) In the period 1956/1963-2007/2011, the Heihe River Basins glaciers had an evident retreat trend, the total area of glaciers decreased from 361.69 km~2 to 231.17 km~2; shrinking at a rate of 36.08%, with average single glacier area decrease 0.14 km~2; the total number of the glaciers decreased from 967 to 800. (2) Glaciers in this basin are mainly distributed at elevations of 4300-4400 m, 4400-4500 m and 4500-4600 m; and there are significant regional differences in glaciers distribution and glaciers change. (3) Compared with other western mountain glaciers, glaciers retreat in the Heihe River Basin has a higher rate. (4) Analysis of the six meteorological stations annual average temperature and precipitation data from 1960 to 2010 suggests that the mean annual temperature increased significantly and the annual precipitation also showed an increasing trend. It is concluded that glacier shrinkage is closely related with temperature rising, besides,glacier melting caused by rising temperatures greater than glacier mass supply by increased precipitation to some extent.
英文关键词	remote sensing detection glacier object-oriented extraction method shrinkage Landsat TM/ ETM+ Heihe River Basin
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5258441
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335401
作者单位	Huai Baojuan, Cold and Arid Regions Environmental and Engineering Research Institute/Tianshan Glaciological Station, CAS, State Key Laboratory of Cryospheric Sciences, Lanzhou, Gansu 730000, China.; Li Zhongqin, Cold and Arid Regions Environmental and Engineering Research Institute/Tianshan Glaciological Station, CAS, State Key Laboratory of Cryospheric Sciences, Lanzhou, Gansu 730000, China.; Zhou Ping, Cold and Arid Regions Environmental and Engineering Research Institute/Tianshan Glaciological Station, CAS, State Key Laboratory of Cryospheric Sciences, Lanzhou, Gansu 730000, China.; Wang Shengjie, College of Geography and Environmental Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China.; Sun Meiping, College of Geography and Environmental Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China.; Xiao Yan, College of Environment and Planning, Liaocheng University, Liaocheng, Shandong 252059, China.
推荐引用方式 GB/T 7714	Huai Baojuan,Li Zhongqin,Wang Shengjie,et al. RS analysis of glaciers change in the Heihe River Basin, Northwest China, during the recent decades[J],2014,24(6):993-1008.
APA	Huai Baojuan,Li Zhongqin,Wang Shengjie,Sun Meiping,Zhou Ping,&Xiao Yan.(2014).RS analysis of glaciers change in the Heihe River Basin, Northwest China, during the recent decades.Journal of Geographical Sciences,24(6),993-1008.
MLA	Huai Baojuan,et al."RS analysis of glaciers change in the Heihe River Basin, Northwest China, during the recent decades".Journal of Geographical Sciences 24.6(2014):993-1008.