干旱区生态环境知识资源中心(Arid): Variations of temperature and precipitation of snowmelt period and its effect on runoff in the mountainous areas of Northwest China

Arid

	Variations of temperature and precipitation of snowmelt period and its effect on runoff in the mountainous areas of Northwest China
	Li Baofu; Chen Yaning; Chen Zhongsheng; Li Weihong; Zhang Baohuan
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2013
卷号	23 期号:1 页码:17-30
英文摘要	Water resources in the arid land of Northwest China mainly derive from snow and glacier melt water in mountainous areas. So the study on onset, cessation, length, temperature and precipitation of snowmelt period is of great significance for allocating limited water resources reasonably and taking scientific water resources management measures. Using daily mean temperature and precipitation from 8 mountainous weather stations over the period 1960-2010 in the arid land of Northwest China, this paper analyzes climate change of snowmelt period and its spatial variations and explores the sensitivity of runoff to length, temperature and precipitation of snowmelt period. The results show that mean onset of snowmelt period has shifted 15.33 days earlier while mean ending date has moved 9.19 days later. Onset of snowmelt period in southern Tianshan Mountains moved 20.01 days earlier while that in northern Qilian Mountains moved only 10.16 days earlier. Mean precipitation and air temperature increased by 47.3 mm and d 0.857℃ in the mountainous areas of Northwest China, respectively. The precipitation of snowmelt period increased the fastest, which is observed in southern Tianshan Mountains, up to 65 mm, and the precipitation and temperature in northern Kunlun Mountains increased the slowest, an increase of 25 mm and 0.617℃, respectively, while the temperature in northern Qilian Mountains increased the fastest, increasing by 1.05℃. The annual runoff is also sensitive to the variations of precipitation and temperature of snowmelt period, because variation of precipitation induces annual runoff change by 7.69% while change of snowmelt period temperature results in annual runoff change by 14.15%.
英文关键词	snowmelt period temperature precipitation runoff mountainous areas of Northwest China
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4733893
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335185
作者单位	Li Baofu, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Chen Yaning, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Chen Zhongsheng, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Li Weihong, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Zhang Baohuan, Xinjiang Institute of Ecology and Geography, CAS, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.
推荐引用方式 GB/T 7714	Li Baofu,Chen Yaning,Chen Zhongsheng,et al. Variations of temperature and precipitation of snowmelt period and its effect on runoff in the mountainous areas of Northwest China[J],2013,23(1):17-30.
APA	Li Baofu,Chen Yaning,Chen Zhongsheng,Li Weihong,&Zhang Baohuan.(2013).Variations of temperature and precipitation of snowmelt period and its effect on runoff in the mountainous areas of Northwest China.Journal of Geographical Sciences,23(1),17-30.
MLA	Li Baofu,et al."Variations of temperature and precipitation of snowmelt period and its effect on runoff in the mountainous areas of Northwest China".Journal of Geographical Sciences 23.1(2013):17-30.