Estimation of soil water content and evapotranspiration from irrigated cropland on the North China Plain

DSpace/Manakin Repository

Search OPUS


Advanced Search

Browse

My Account

Show simple item record

dc.contributor.author Jiang, J
dc.contributor.author Zhang, Y
dc.contributor.author Wegehenkel, M
dc.contributor.author Yu, Q
dc.contributor.author Xia, J
dc.date.accessioned 2010-05-28T09:44:38Z
dc.date.issued 2008-01
dc.identifier.citation Journal Of Plant Nutrition And Soil Science-Zeitschrift Fur Pflanzenernahrung Und Bodenkunde Journal Of ..., 2008, 171 (5), pp. 751 - 761
dc.identifier.issn 1436-8730
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8652
dc.description.abstract For nearly 30 y, cropland on the North China Plain (NCP) has been irrigated primarily by pumping groundwater with no sustainable management strategy. This has caused a continuous decline of the water table. A sustainable groundwater management and irrigation strategy must be established in order to prevent further decline of the water table; to do this, one must quantify soil water content and daily rates of deep percolation and locate evapotranspiration from irrigated cropland. For that purpose, we developed a three-layer soil-water balance (SWB) model based on an approach described by Kendy et al. (2003). In this model, the unsaturated soil zone is divided into three layers: a surface active layer, a middle active soil layer, and a lowest passive soil layer. The middle and the lowest layers dynamically change with the development of crop rooting depth. A simple "tipping bucket" routine and an exponential equation are used to redistribute soil water in the three soil layers. The actual evapotranspiration estimated is partitioned into soil evaporation and crop transpiration using a dual crop coefficient reference approach. At first, the model was calibrated using data obtained from five deficiently irrigated field plots located at an experimental site in the NCP between 1998 and 2003. Then, the model was validated by comparing estimated soil water contents with measured ones at three other plots with nondeficient irrigation.
dc.publisher Wiley-VCH Verlag Gmbh
dc.relation.isbasedon 10.1002/jpln.200625179
dc.title Estimation of soil water content and evapotranspiration from irrigated cropland on the North China Plain
dc.type Journal Article
dc.parent Journal Of Plant Nutrition And Soil Science-Zeitschrift Fur Pflanzenernahrung Und Bodenkunde Journal Of ...
dc.journal.volume 5
dc.journal.volume 171
dc.journal.number 5 en_US
dc.publocation Weinheim, Germany en_US
dc.identifier.startpage 751 en_US
dc.identifier.endpage 761 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0703 Crop and Pasture Production
dc.personcode 107001
dc.percentage 100 en_US
dc.classification.name Plant Biology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity 761 en_US
dc.description.keywords soil water balance; soil water content; evapotranspiration; cropland; model; North China Plain en_US
dc.description.keywords soil water balance
dc.description.keywords soil water content
dc.description.keywords evapotranspiration
dc.description.keywords cropland
dc.description.keywords model
dc.description.keywords North China Plain
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - C3
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
utslib.collection.history Closed (ID: 3)
utslib.collection.history Uncategorised (ID: 363)


Files in this item

This item appears in the following Collection(s)

Show simple item record