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Study on the runoff and sediment-producing effects of precipitation in headwater areas of the Yangtze River and Yellow River, China
Li Yuanshou1,2; Wang Genxu1,2,3,4; Qin Dahe1,2; Zhao Lin1,2; Ding Yongjian1,2
Corresponding AuthorLi Yuanshou
2008
Source PublicationENVIRONMENTAL GEOLOGY
ISSN0943-0105
Volume56Issue:1Pages:1-9
SubtypeArticle
AbstractNatural runoff observation fields with different vegetation coverage were established in the Zuomaoxikongqu River basin in the headwater area of the Yangtze River, and in the Natong River basin and the Kuarewaerma River basin in the headwater area of the Yellow River, China. The experiments were conducted using natural precipitation and artificially simulated precipitation between July and August to study the runoff and sediment-producing effects of precipitation under the conditions of the same slope and different alpine meadow land with coverage in the headwater areas. The results show that, in the three small river basins in the headwater areas of the Yangtze and the Yellow Rivers, the surface runoff yield on the 30 slope surface of the alpine meadow land with a vegetation cover of 30% is markedly larger than that of the fields with a vegetation cover of 95, 92, and 68%. Furthermore, the sediment yield is also obviously larger than the latter three; on an average, the sediment yield caused by a single precipitation event is 2-4 times as large as the latter three. Several typical precipitation forms affecting the runoff yield on the slope surface also influence the process. No matter how the surface conditions are; the rainfall is still the main precipitation form causing soil erosion. In some forms of precipitation, such as the greatest snow melting as water runoff, the sediment yield is minimal. Under the condition of the same precipitation amount, snowfall can obviously increase the runoff yield, roughly 2.1-3.5 times as compared to the combined runoff yield of the Sleet or that of rainfall alone; but meanwhile, the sediment yield and soil erosion rate decrease, roughly decreasing by 45.4-80.3%. High vegetation cover can effectively decrease the runoff-induced erosion. This experimental result is consistent in the three river basins in the headwater areas of the Yangtze and Yellow Rivers.
KeywordHeadwater Areas Of The Yangtze River And Yellow River Vegetation Coverage Precipitation Runoff Yield Sediment Yield
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s00254-007-1134-7
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
WOS KeywordCATCHMENT ; PLATEAU ; CLIMATE
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000260065300001
Funding Organization973 Project(2007CB411504) ; Natural Science Foundation of China(40701022 ; Foundation Project of State Key Laboratory of Frozen Soil Engineering(SKLFSE200501) ; Foundation Project of State Key Laboratory of Cryospheric Science(SKLCS07-06) ; 90511003 ; 40730634)
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10536
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Cryosphere Res Stn Qinghai Xizang Plateau, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazard & Environm, Chengdu 610041, Peoples R China
4.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Li Yuanshou,Wang Genxu,Qin Dahe,et al. Study on the runoff and sediment-producing effects of precipitation in headwater areas of the Yangtze River and Yellow River, China[J]. ENVIRONMENTAL GEOLOGY,2008,56(1):1-9.
APA Li Yuanshou,Wang Genxu,Qin Dahe,Zhao Lin,&Ding Yongjian.(2008).Study on the runoff and sediment-producing effects of precipitation in headwater areas of the Yangtze River and Yellow River, China.ENVIRONMENTAL GEOLOGY,56(1),1-9.
MLA Li Yuanshou,et al."Study on the runoff and sediment-producing effects of precipitation in headwater areas of the Yangtze River and Yellow River, China".ENVIRONMENTAL GEOLOGY 56.1(2008):1-9.
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