IGSNRR OpenIR
Effects of infiltration time on the calculated sorptivity with White method for a sandy loam soil
Hu, Wei2; Wang, Quanjiu3,4; Shao, Mingan1; Ju, Zhengshan5
2011-09-19
Source PublicationAFRICAN JOURNAL OF AGRICULTURAL RESEARCH
Volume6Issue:19Pages:4601-4606
AbstractSorptivity (S) is one of the important soil hydraulic parameters, which can be estimated by disc infiltration data at the early stage with one dimensional infiltration theory. With the purpose of understanding the effects of infiltration time (IT) on the estimated S, two sizes (radius of 5 and 2.5 cm) of disc infiltrometer were used to perform disc infiltration under five pressure heads (0, -3, -6, -9, -15 cm) using a packed sandy loam soil. S values for different IT were estimated with White method. Results showed that the estimated S was in general overestimated and it increased with the increase of IT. The relative measurement error as compared with the Parlange method increased with the increase of IT, a behavior that could be well fitted by a logarithmic function. There was a tendency that the relative measurement error decreased with the decrease of pressure head, and the optimized value of IT (IT(OP)) in general increased exponentially with decreasing pressure head, ranging from 20 to 75 s for disc radius of 5 cm and 8 to 26 s for disc radius of 2.5 cm. The estimated S values and relative measurement errors for smaller disc were greater than those of larger disc. Attentions should be given to the suitable IT for determining S by White method. Furthermore, the relatively larger disc size should be preferred under the premise of a good hydraulic contact between disc and soil surface.
SubtypeArticle
KeywordDisc Infiltrometer Philip Sorptivity Sandy Loam Soil
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedAgriculture
WOS KeywordHYDRAULIC CONDUCTIVITY ; TENSION INFILTROMETERS ; DISK PERMEAMETERS ; UNSATURATED SOILS ; TRANSIENT FLOW ; EQUATION
Indexed BySCI
Language英语
WOS SubjectAgriculture, Multidisciplinary
WOS IDWOS:000298784000024
PublisherACADEMIC JOURNALS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68004
Collection中国科学院地理科学与资源研究所
Corresponding AuthorShao, Mingan
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Surface Proc, Beijing 100101, Peoples R China
3.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
4.NW A&F Univ, Minist Water Resource, Yangling 712100, Shaanxi, Peoples R China
5.Minist Land & Resources, Land Consolidat & Rehabil Ctr, Beijing 10035, Peoples R China
Recommended Citation
GB/T 7714
Hu, Wei,Wang, Quanjiu,Shao, Mingan,et al. Effects of infiltration time on the calculated sorptivity with White method for a sandy loam soil[J]. AFRICAN JOURNAL OF AGRICULTURAL RESEARCH,2011,6(19):4601-4606.
APA Hu, Wei,Wang, Quanjiu,Shao, Mingan,&Ju, Zhengshan.(2011).Effects of infiltration time on the calculated sorptivity with White method for a sandy loam soil.AFRICAN JOURNAL OF AGRICULTURAL RESEARCH,6(19),4601-4606.
MLA Hu, Wei,et al."Effects of infiltration time on the calculated sorptivity with White method for a sandy loam soil".AFRICAN JOURNAL OF AGRICULTURAL RESEARCH 6.19(2011):4601-4606.
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
[Hu, Wei]'s Articles
[Wang, Quanjiu]'s Articles
[Shao, Mingan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Hu, Wei]'s Articles
[Wang, Quanjiu]'s Articles
[Shao, Mingan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Hu, Wei]'s Articles
[Wang, Quanjiu]'s Articles
[Shao, Mingan]'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.