Effect of soil water deficit on evapotranspiration crop yield, and water use efficiency in the North China Plain

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dc.contributor.author Zhang, Y
dc.contributor.author Kendy, E
dc.contributor.author Yu, Q
dc.contributor.author Liu, C
dc.contributor.author Shen, Y
dc.contributor.author Sun, H
dc.date.accessioned 2010-05-28T09:45:55Z
dc.date.issued 2004-01
dc.identifier.citation Agricultural Water Management, 2004, 64 (2), pp. 107 - 122
dc.identifier.issn 0378-3774
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/8856
dc.description.abstract In the North China Plain (NCP), excessive groundwater pumping is a serious problem. In this study, different groundwater irrigation schedules were applied. A simple soil water balance approach was introduced to evaluate crop evapotranspiration (ET) and water use efficiency (WUE). Under normal irrigation scheduling, groundwater mining occurs at a rate of over 200 mm per year from a rapidly depleting aquifer system. Severe soil water deficit (SWD) decreases grain yield (GY) of wheat (Triticum aestivum L.) and maize (Zea mays L.), while slight SWD in a growth stage from spring green up to grain-filling winter wheat did not evidently reduce GY and WUE. A severe or slight SWD significantly reduces ET, which mainly depends on irrigation amounts. Thus, it is possible to reduce ET somewhat without significantly decreasing GY. ET was correlated to GY in a parabolic function, and maximum yield for winter wheat occurred when optimal ET for winter wheat was about 447 mm. It was important for wheat and maize to be irrigated before sowing to improve soil water storage (SWS), and the effect of the irrigation apparently increased wheat GY.
dc.publisher Elsevier BV
dc.relation.isbasedon 10.1016/S0378-3774(03)00201-4
dc.title Effect of soil water deficit on evapotranspiration crop yield, and water use efficiency in the North China Plain
dc.type Journal Article
dc.parent Agricultural Water Management
dc.journal.volume 2
dc.journal.volume 64
dc.journal.number 2 en_US
dc.publocation The Netherlands en_US
dc.identifier.startpage 107 en_US
dc.identifier.endpage 122 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, Etc.)
dc.personcode 107001
dc.percentage 100 en_US
dc.classification.name Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.) 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 en_US
dc.description.keywords Soil water deficit (SWD); Evapotranspiration (ET); Grain yield; Water use efficiency (WUE); Irrigation; Winter wheat; Maize; North China Plain en_US
dc.description.keywords Soil water deficit (SWD)
dc.description.keywords Evapotranspiration (ET)
dc.description.keywords Grain yield
dc.description.keywords Water use efficiency (WUE)
dc.description.keywords Irrigation
dc.description.keywords Winter wheat
dc.description.keywords Maize
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)

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