Dynamic and dry/wet variation of climate in the potential extent of desertification in China during 1981-2010

	Dynamic and dry/wet variation of climate in the potential extent of desertification in China during 1981-2010
	Sun, Bin 1; Gao, Zhihai 1; Li, Zengyuan 1; Wang, Hongyan 1; Li, Xiaosong 1; Wang, Bengyu 1; Wu, Junjun 1
刊名	ENVIRONMENTAL EARTH SCIENCES
	2015
卷号	73 期号:7 页码:809-829
关键词	Potential extent of desertification in China (PEDC) Thornthwaite method Moisture index Mann-Kendall test method Dry/wet variation of climate
通讯作者	Gao, ZH (reprint author), Chinese Acad Forestry, Inst Forest Resource Informat Tech, 1 Dong Xiao Fu, Beijing 100091, Peoples R China.
英文摘要	The potential extent of desertification in China (PEDC), composed by arid, semi-arid and dry sub-humid regions, was re-determined using a high spatial resolution meteorological dataset (1981-2010) and by applying the Thornthwaite method, which was recommended by the UNCCD for division of dryland zones (extremely arid, arid, semi-arid, dry sub-humid zones). The dynamic and the dry/wet trends in climatic variation in the general PEDC during 1981-2010 were statistically analyzed using several different methods. The newly calculated area of the general PEDC is approximately 3.222 x 10(6) km(2), accounting for 33.6 % of China's terrestrial. However, the results of a decadal spatial analysis indicated that the actual reduction appeared in the western region, where the general PEDC shrank to lower altitude areas. Meanwhile, the eastern border of the general PEDC was expanded to the east and southeast. Over three decades, the lower mountainous areas in northwestern Qinghai-Tibetan Plateau have experienced an obviously alternating process of drought-wetness-drought, the semi-arid and dry sub-humid regions in the east of the Helan Mountains as well as the Junggar Basin have experienced an alternating process of wetness-drought-wetness, and the vast arid region in the west of the Helan Mountains has experienced a process of drought-drought-wetness. In the most recent decade, most areas, except for the major western mountainous regions, have been experiencing a wet trend, which is favorable for combating desertification.
研究领域[WOS]	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000351163300055
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38458]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Sun, Bin 2.Gao, Zhihai 3.Li, Zengyuan 4.Wang, Bengyu 5.Wu, Junjun] Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China 6.[Wang, Hongyan 7.Li, Xiaosong] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100094, Peoples R China
推荐引用方式 GB/T 7714	Sun, Bin,Gao, Zhihai,Li, Zengyuan,et al. Dynamic and dry/wet variation of climate in the potential extent of desertification in China during 1981-2010[J]. ENVIRONMENTAL EARTH SCIENCES,2015,73(7):809-829.
APA	Sun, Bin.,Gao, Zhihai.,Li, Zengyuan.,Wang, Hongyan.,Li, Xiaosong.,...&Wu, Junjun.(2015).Dynamic and dry/wet variation of climate in the potential extent of desertification in China during 1981-2010.ENVIRONMENTAL EARTH SCIENCES,73(7),809-829.
MLA	Sun, Bin,et al."Dynamic and dry/wet variation of climate in the potential extent of desertification in China during 1981-2010".ENVIRONMENTAL EARTH SCIENCES 73.7(2015):809-829.