ISWC OpenIR  > 水保所科研产出--SCI  > 2017--SCI
Spatial pattern and heterogeneity of soil moisture along a transect in a small catchment on the Loess Plateau
Yang, Yang1; Dou, Yanxing2; Liu, Dong2; An, Shaoshan1,2; An, SS (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Rd Xinong 26, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2017
Source PublicationJOURNAL OF HYDROLOGY
ISSN0022-1694
description.correspondentemailshan@ms.iswc.ac.cn
Volume550Pages:466-477
AbstractSpatial pattern and heterogeneity of soil moisture is important for the hydrological process on the Loess Plateau. This study combined the classical and geospatial statistical techniques to examine the spatial pattern and heterogeneity of soil moisture along a transect scale (e.g. land use types and topographical attributes) on the Loess Plateau. The average values of soil moisture were on the order of farmland > orchard > grassland > abandoned land > shrubland > forestland. Vertical distribution characteristics of soil moisture (0-500 cm) were similar among land use types. Highly significant (p < 0.01) negative correlations were found between soil moisture and elevation (h) except for shrubland (p > 0.05), whereas no significant correlations were found between soil moisture and plan curvature (Kh), stream power index (SPI), compound topographic index (CTI) (p > 0.05), indicating that topographical attributes (mainly h) have a negative effect on the soil moisture spatial heterogeneity. Besides, soil moisture spatial heterogeneity decreased from forestland to grassland and farmland, accompanied by a decline from 15 to 1 alongside upper to lower slope position. This study highlights the importance of land use types and topographical attributes on the soil moisture spatial heterogeneity from a combined analysis of the structural equation model (SEM) and generalized additive models (GAMS), and the relative contribution of land use types to the soil moisture spatial heterogeneity was higher than that of topographical attributes, which provides insights for researches focusing on soil moisture varitions on the Loess Plateau. (C) 2017 Elsevier B.V. All rights reserved.
KeywordSpatial Heterogeneity Soil Moisture Transect Scale Catchment Loess Plateau
Subject AreaEngineering ; Geology ; Water Resources
DOI10.1016/j.jhydrol.2017.05.026
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Indexed BySCI
Publication PlaceAMSTERDAM
Language英语
WOS IDWOS:000404816000037
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Natural Sciences Foundation of China [41671280]; Key Projects in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period [2015BAC01B01]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C6] ; National Natural Sciences Foundation of China [41671280]; Key Projects in the National Science & Technology Pillar Program during the Twelfth Five-year Plan Period [2015BAC01B01]; Special-Funds of Scientific Research Programs of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau [A314021403-C6]
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7967
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorAn, SS (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Rd Xinong 26, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Rd Xinong 26, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yang,Dou, Yanxing,Liu, Dong,et al. Spatial pattern and heterogeneity of soil moisture along a transect in a small catchment on the Loess Plateau[J]. JOURNAL OF HYDROLOGY,2017,550:466-477.
APA Yang, Yang,Dou, Yanxing,Liu, Dong,An, Shaoshan,&An, SS .(2017).Spatial pattern and heterogeneity of soil moisture along a transect in a small catchment on the Loess Plateau.JOURNAL OF HYDROLOGY,550,466-477.
MLA Yang, Yang,et al."Spatial pattern and heterogeneity of soil moisture along a transect in a small catchment on the Loess Plateau".JOURNAL OF HYDROLOGY 550(2017):466-477.
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