Influence of Alpine Meadow Land Cover Differences on Precipitation-Runoff Processes on the Qinghai-Tibet Plateau, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Influence of Alpine Meadow Land Cover Differences on Precipitation-Runoff Processes on the Qinghai-Tibet Plateau, China
	Li, Yuanshou 1,2; Zhang, Renhe 1; Jia, Xiaohong 2; Wang, Genxu3,4 ; Zhao, Lin 2; Ding, Yongjian 2
刊名	ENVIRONMENTAL ENGINEERING SCIENCE
	2010-02-01
卷号	27 期号:2 页码:209-213
关键词	alpine meadow land cover difference precipitation-runoff Qinghai-Tibet Plateau
ISSN号	1092-8758
通讯作者	Li, YS
英文摘要	How land cover differences affect runoff and sediment and their relationship with precipitation are largely unknown on the Qinghai-Tibet Plateau. This study was designed to examine precipitation-runoff processes using the runoff observation plots on the 308 slope surfaces. Three plots were selected with vegetative cover average of 30, 68, and 93%. Our results show that runoff with 30% land coverage is larger than those with 68 and 93%, under the same precipitation form and amount in an alpine meadow. The mean sediment per precipitation event is two to four times greater in an area with 30% vegetative cover compared with those in 68 and 93% vegetative cover. Both runoff and mean sediment yields increased with vegetative cover from 30 to 68 and 93%. The precipitation form also affects the runoff and sediment yield. Comparing sleet and rainfall, the runoff yield resulted from melted snow is maximal, but the sediment yield is minimal. Based on the runoff yields of precipitation, the runoff coefficients on a sloping surface of 30 degrees with vegetative cover of 30, 68, and 93% are 5.3, 2.5, and 1.9%, respectively. Quadratic parabolic curves better describe the relationships of runoff and sediment with precipitation on the Qinghai-Tibet Plateau. Our results suggest that vegetation is a major control on runoff and sediment production in the permafrost region.
WOS标题词	Science & Technology ; Technology ; Life Sciences & Biomedicine
类目[WOS]	Engineering, Environmental ; Environmental Sciences
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
关键词[WOS]	REGION ; SOIL
收录类别	SCI
语种	英语
WOS记录号	WOS:000274527300010
公开日期	2013-07-05
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5608]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Environm & Engn Res Inst, Cryosphere Res Stn Qinghai Xizang Plateau, State Key Lab Cryospher Sci Cold & Arid Reg, Lanzhou, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazard & Environm, Chengdu, Peoples R China 4.Minist Water Conservancy & Power, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Li, Yuanshou,Zhang, Renhe,Jia, Xiaohong,et al. Influence of Alpine Meadow Land Cover Differences on Precipitation-Runoff Processes on the Qinghai-Tibet Plateau, China[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2010,27(2):209-213.
APA	Li, Yuanshou,Zhang, Renhe,Jia, Xiaohong,Wang, Genxu,Zhao, Lin,&Ding, Yongjian.(2010).Influence of Alpine Meadow Land Cover Differences on Precipitation-Runoff Processes on the Qinghai-Tibet Plateau, China.ENVIRONMENTAL ENGINEERING SCIENCE,27(2),209-213.
MLA	Li, Yuanshou,et al."Influence of Alpine Meadow Land Cover Differences on Precipitation-Runoff Processes on the Qinghai-Tibet Plateau, China".ENVIRONMENTAL ENGINEERING SCIENCE 27.2(2010):209-213.