IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.1
Spatial distribution of soil hydraulic parameters estimated by pedotransfer functions for the Jialing River Catchment, Southwestern China
Lei Wen-Juan1,2; Tang Xiang-Yu1; Reid, Brian J.3; Zhou Xiang-Yang4
Corresponding AuthorTANG Xiang-Yu
2016
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume13Issue:1Pages:29-45
SubtypeArticle
AbstractSoil hydraulic parameters theta (s), alpha, n, K (s), L and theta (r) of the van Genuchten-Mualem model were estimated using three pedotransfer functions (PTFs) based on soil properties for surface soils of the largest main tributary catchment (the Jialing River) of the upper Yangtze River in China. The soil database was from the second national soil survey of China with a spatial 30 X 30 arc-second resolution. According to the statistical analysis of the differences between the continuous-PTFs-estimated values of soil hydraulic parameters for the study catchment and the reference values for a specific texture class provided in the development database of a specific PTF, best estimations were obtained using the Wosten PTF. The Rawls & Brakenssiek PTF was good estimation for parameter theta (r) that was assumed as zero by Wosten PTF. The established higher theta (r) (0.08%) and lower K (s) (20 cm/d) and theta (s) (0.43%) in the mid-downstream area relative to the other areas of the catchment could lead to larger amounts of surface runoff and consequently provide higher energy to erode soil. Thus, these factors provide a supporting explanation for previously reported severe soil erosion occurring in this area. Spatial heterogeneity analysis for estimated hydraulic parameters in terms of semivariogram showed that the spatial correlation distance was in the range of 50-80 km and that the spatial variability (sill) was not large except for parameters K (s) and L. The semi-variance with the exponential model at the zero distance (nugget) was 30%-50% of the sill. This study provided a practical PTF approach for estimating soil hydraulic properties from soil survey data at a large watershed scale. The estimation results could provide better insight into the mechanism of surface runoff and soil erosion, which is important to better understand and manage erosion in the catchment.
KeywordSoil Properties Hydraulic Parameters Pedotransfer Functions Jialing River Catchment
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-014-3390-9
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordORGANIC-MATTER ; CONDUCTIVITY ; TILLAGE ; MODEL ; VARIABILITY ; EROSION ; CARBON ; BASIN
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000368175700003
Funding OrganizationChinese Academy of Sciences ; Sichuan Province ; National Basic Research Program of the Ministry of Science and Technology of China(2012CB417101) ; National Natural Science Foundation of China(41171372 ; CAS-SAFEA International Partnership Program for Creative Research Team(KZZD-EWTZ-06) ; 41471268)
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/13873
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.1
山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England
4.Sichuan Univ, Coll Water Resource & Hydropower, Chengdu 610065, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Lei Wen-Juan,Tang Xiang-Yu,Reid, Brian J.,et al. Spatial distribution of soil hydraulic parameters estimated by pedotransfer functions for the Jialing River Catchment, Southwestern China[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(1):29-45.
APA Lei Wen-Juan,Tang Xiang-Yu,Reid, Brian J.,&Zhou Xiang-Yang.(2016).Spatial distribution of soil hydraulic parameters estimated by pedotransfer functions for the Jialing River Catchment, Southwestern China.JOURNAL OF MOUNTAIN SCIENCE,13(1),29-45.
MLA Lei Wen-Juan,et al."Spatial distribution of soil hydraulic parameters estimated by pedotransfer functions for the Jialing River Catchment, Southwestern China".JOURNAL OF MOUNTAIN SCIENCE 13.1(2016):29-45.
Files in This Item:
File Name/Size DocType Version Access License
3.pdf(12662KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lei Wen-Juan]'s Articles
[Tang Xiang-Yu]'s Articles
[Reid, Brian J.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lei Wen-Juan]'s Articles
[Tang Xiang-Yu]'s Articles
[Reid, Brian J.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lei Wen-Juan]'s Articles
[Tang Xiang-Yu]'s Articles
[Reid, Brian J.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 3.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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