Spatio-temporal variability and temporal stability of water contents distributed within soil profiles at a hillslope scale
Gao, L; Shao, MG; Peng, XH; She, DL
2015
Source PublicationCATENA
ISSN0341-8162
Volume132Pages:29-36
AbstractInformation about soil water content (SWC) within soil profiles in terms of its spatio-temporal variability and temporal stability is crucial when selecting appropriate soil water management practices. However, detailed profile distribution features for related indices are not clear on the Chinese Loess Plateau. This study aimed to investigate the depth dependency of spatio-temporal variability and temporal stability of SWC at the hillslope scale using an intensive sampling strategy for both horizontal and vertical directions as well as over time. The SWCs at 20 depths within 0-300 cm soil profiles were measured on 20 occasions between July 2008 and October 2010 at 91 locations on a hillslope on the Loess Plateau, China. Results showed that although the profile distributions of investigated statistical parameters differed greatly, they were all depth dependent. Based on both the spatio-temporal variability and the temporal stability characteristics using eight indices, the studied soil profile (0-300 cm) could be divided into three soil layers, i.e., 0-60, 60-160 and 160-300 cm, with a characteristic feature of "irregularly changing", "regularly changing", and "relatively constant", respectively. The deepest rainwater replenishment depth was approximately 160 cm. Therefore, choosing 200 cm as the sampling depth would be sufficient in similar areas. Such findings are useful for designing an optimal strategy for sampling and management of profile soil moisture. (C) 2015 Elsevier B.V. All rights reserved.
SubtypeJournal
KeywordProfile soil water content Controlling factor Hillslope hydrology Rainwater replenishment depth Semi-arid area
Subject AreaGeology ; Agriculture ; Water Resources
WOS Subject ExtendedGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS KeywordREMOTE-SENSING FOOTPRINTS ; LOESS PLATEAU ; MOISTURE VARIABILITY ; SPATIAL-PATTERNS ; NEUTRON PROBE ; STORAGE ; CHINA ; TIME ; SURFACE ; LAYERS
Indexed BySCI
Language英语
WOS IDWOS:000355894200004
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44374
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Gao, L,Shao, MG,Peng, XH,et al. Spatio-temporal variability and temporal stability of water contents distributed within soil profiles at a hillslope scale[J]. CATENA,2015,132:29-36.
APA Gao, L,Shao, MG,Peng, XH,&She, DL.(2015).Spatio-temporal variability and temporal stability of water contents distributed within soil profiles at a hillslope scale.CATENA,132,29-36.
MLA Gao, L,et al."Spatio-temporal variability and temporal stability of water contents distributed within soil profiles at a hillslope scale".CATENA 132(2015):29-36.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gao, L]'s Articles
[Shao, MG]'s Articles
[Peng, XH]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gao, L]'s Articles
[Shao, MG]'s Articles
[Peng, XH]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gao, L]'s Articles
[Shao, MG]'s Articles
[Peng, XH]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.