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Soil water characteristics of Middle Pleistocene paleosol layers on the loess Plateau
Wu, Tieniu1,2,3,6; Wang, Yunqiang1,2,4,6; Lv, Junwei5; Zhang, Bo5
2011-09-14
Source PublicationAFRICAN JOURNAL OF BIOTECHNOLOGY
Volume10Issue:53Pages:10856-10863
AbstractSoil water plays an important role in water quality monitoring, irrigation scheduling, solute migration, and plant growth. The soil water condition for a field site depends on soil type and related water movement parameters. Information about the soil hydraulic properties of Middle Pleistocene paleosol layers within the Yingpan section on the Loess Plateau of China is necessary since it may affect water cycle processes both in vertical and horizontal directions; however, little data is currently available. The saturated hydraulic conductivity (K(s)), soil-water characteristic curve (SWCC), field capacity, particle size composition, and other indices of the paleosol layers were determined. Out of a potential eight models to be fitted to the SWCC data, the van Genuchten model was applicable to four layers (S1, S5-2, S5-3 and S6) while the dual porosity equation was applicable to the S2, S3, S4 and S5-1 layers. These models fitted the data well. Results show that paleosol layers differed from each other in their capacity to hold water and this was related to their soil structures and porosities. These differences could be due to the different conditions prevailing during their formation. Although, paleosols occur at various depths, certain deep-rooting plants can access the water they hold. Therefore, the SWCC of the individual layers has significance for ecological management in the region.
SubtypeArticle
KeywordMiddle Pleistocene Paleosol Soil Water Characteristic Curve Loess Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedBiotechnology & Applied Microbiology
Indexed BySCI
Language英语
WOS SubjectBiotechnology & Applied Microbiology
WOS IDWOS:000298536200007
PublisherACADEMIC JOURNALS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68088
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Yunqiang
Affiliation1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi Provinc, Peoples R China
2.Minist Water Resources, Yangling 712100, Shaanxi Provinc, Peoples R China
3.Shaoyang Univ, Urban Construct Dept, Shaoyang 422000, Hunan, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
5.NW A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi Provinc, Peoples R China
6.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wu, Tieniu,Wang, Yunqiang,Lv, Junwei,et al. Soil water characteristics of Middle Pleistocene paleosol layers on the loess Plateau[J]. AFRICAN JOURNAL OF BIOTECHNOLOGY,2011,10(53):10856-10863.
APA Wu, Tieniu,Wang, Yunqiang,Lv, Junwei,&Zhang, Bo.(2011).Soil water characteristics of Middle Pleistocene paleosol layers on the loess Plateau.AFRICAN JOURNAL OF BIOTECHNOLOGY,10(53),10856-10863.
MLA Wu, Tieniu,et al."Soil water characteristics of Middle Pleistocene paleosol layers on the loess Plateau".AFRICAN JOURNAL OF BIOTECHNOLOGY 10.53(2011):10856-10863.
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