IGSNRR OpenIR
Effect of spatial variation of textural layers on regional field water balance
Li, WD; Li, BG; Shi, YC; Jacques, D; Feyen, J
2001-05-01
Source PublicationWATER RESOURCES RESEARCH
Volume37Issue:5Pages:1209-1219
AbstractThe spatial variability of textural layers is a major factor influencing the field water and solute transport in alluvial soils. To quantify the water transport process at a regional scale accurately, one has to take the spatial variability of textural layers into account. In this paper, a recently presented Markov chain simulation model for soil textural profiles was coupled with a deterministic field water balance model to conduct a stochastic analysis of the field water balance in a 15 km(2) alluvial soil region. The aim is to assess the effect of spatial variability of textural layers on the field water balance at a regional scale. By combining simulated soil textural profiles with the field water balance model, the mean values, extreme values, and probability distributions of field water balance variables were calculated. Results showed large differences in the magnitude of soil water balance variables between different profiles. The extreme difference in the water storage in 1 m depth soil during the winter wheat growth varied with time between 175 mm and 180 mm, which accounted for 86.5-135.0% of the mean of the soil water storage. This indicates that the soil water balance variables derived from only a few soil profiles are not representative for the situation of field water balance in the entire region. The simulated root water uptake showed different types of probability density functions when the soil water storage and the deficit of soil water in the field changed with time. The simulated water storage in 1 m depth soil showed obviously a lognormal distribution, but the measured data showed an approximate normal distribution.;It may be heterogeneous irrigation and cropping and some other factors that induce this discrepancy.
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS KeywordSOLUTE TRANSPORT ; HYDRAULIC-PROPERTIES ; SOIL PROPERTIES ; VARIABILITY ; SIMULATION ; PARAMETERS ; SCALE ; FLOW ; GIS
Indexed BySCI
Language英语
WOS SubjectEnvironmental Sciences ; Limnology ; Water Resources
WOS IDWOS:000168266400009
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68340
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLi, WD
Affiliation1.China Agr Univ, Dept Soil & Water Sci, Beijing 100094, Peoples R China
2.Catholic Univ Louvain, Inst Land & Water Management, B-3000 Louvain, Belgium
3.Chinese Acad Sci, Inst Geog, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, WD,Li, BG,Shi, YC,et al. Effect of spatial variation of textural layers on regional field water balance[J]. WATER RESOURCES RESEARCH,2001,37(5):1209-1219.
APA Li, WD,Li, BG,Shi, YC,Jacques, D,&Feyen, J.(2001).Effect of spatial variation of textural layers on regional field water balance.WATER RESOURCES RESEARCH,37(5),1209-1219.
MLA Li, WD,et al."Effect of spatial variation of textural layers on regional field water balance".WATER RESOURCES RESEARCH 37.5(2001):1209-1219.
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
[Li, WD]'s Articles
[Li, BG]'s Articles
[Shi, YC]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li, WD]'s Articles
[Li, BG]'s Articles
[Shi, YC]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li, WD]'s Articles
[Li, BG]'s Articles
[Shi, YC]'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.