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Application of the Cs-137 tracer technique to study soil erosion of alpine meadows in the headwater region of the Yellow River
Li, Y. S.1; Wang, G. X.1,2,3; Ding, Y. J.1; Zhao, L.1; Wang, Y. B.4
Corresponding AuthorLi, Y. S.
2009
Source PublicationENVIRONMENTAL GEOLOGY
ISSN0943-0105
Volume58Issue:5Pages:1021-1028
SubtypeArticle
AbstractThe Cs-137 tracer technique was used to study soil erosion of alpine meadow grassland in two small river basins in the headwater region of the Yellow River. The results show that the levels of Cs-137 in soil samples from this alpine meadow vegetation zone exhibit an exponential distribution, generally within a depth of approximately 20 cm. Due to strong winds, freeze-thaw cycles and water, soil erosion was found to be stronger on the upper slope than on the lower slope, and except for the slope crest, the intensity of soil erosion at other sites was as follows: upslope < midslope < downslope. There was a significant negative correlation between the intensity of soil erosion and the extent of alpine meadow vegetation cover (P < 0.01). The mean soil erosion modulus exhibited a linear reduction trend with an increase in vegetation cover, and the correlation coefficient R (2) was a parts per thousand yen 0.997. The higher the degradation degree of the alpine meadow grassland, the greater is the soil erosion. The mean erosion modulus in the severely degraded meadow zone was 2.23 times greater than the one in the slightly degraded zone, and the maximum erosion modulus reached 2.96 x 10(6) kg/km(2)/a.
KeywordCs-137 Tracer Technique Soil Erosion Degradation Of Vegetation Alpine Meadow Headwater Area Yellow River
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s00254-008-1581-9
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
WOS KeywordQINGHAI-TIBET PLATEAU ; LOESS PLATEAU ; RATES ; CATCHMENT ; CHINA ; MODEL
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000269014000011
Funding Organization"973'' Project(2007CB411504) ; Natural Science Foundation of China(40701022 90511003) ; National Social Science Fund Projects(08CMZ010) ; Hundred People'' Project of the Chinese Academy of Science. Foundation Project of State Key Laboratory of Cryospheric Science(SKLCS07-06)
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10567
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, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Cryosphere Res Stn Qinghai Xizang Plateau Sci, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazard & Environm, Chengdu 610041, Peoples R China
3.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
4.Lanzhou Univ, Coll Resources & Environm, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Li, Y. S.,Wang, G. X.,Ding, Y. J.,et al. Application of the Cs-137 tracer technique to study soil erosion of alpine meadows in the headwater region of the Yellow River[J]. ENVIRONMENTAL GEOLOGY,2009,58(5):1021-1028.
APA Li, Y. S.,Wang, G. X.,Ding, Y. J.,Zhao, L.,&Wang, Y. B..(2009).Application of the Cs-137 tracer technique to study soil erosion of alpine meadows in the headwater region of the Yellow River.ENVIRONMENTAL GEOLOGY,58(5),1021-1028.
MLA Li, Y. S.,et al."Application of the Cs-137 tracer technique to study soil erosion of alpine meadows in the headwater region of the Yellow River".ENVIRONMENTAL GEOLOGY 58.5(2009):1021-1028.
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