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Effects of shallow water tables on the water use and yield of winter wheat (Triticum aestivum L.) under rain-fed condition
Liu, Tiegang1,2; Luo, Yi1
2011-12-01
Source PublicationAUSTRALIAN JOURNAL OF CROP SCIENCE
Volume5Issue:13Pages:1692-1697
AbstractThe experiments were conducted to quantify the effects of shallow water tables on the water use and yield of winter wheat under rain-fed condition through lysimeter. The result showed that, under rain-fed condition, the seasonal groundwater contribution met more than 65% of the potential evapotranspiration of winter wheat with precipitation together as water table depth was within 40-150 cm. As water table was not deeper than 110 cm from ground, the water table contribution nearly met the entire water requirement of winter wheat with the total precipitation in winter wheat season. It was found that 150 cm was a desired depth for yield formation due to the full development of root and the high spike numbers when water table depth was not more than 150 cm. The water use efficiency and ground water use efficiency increased with the increase of water table depth, varying from 1.27 to 2.09 kg m(-3) and from 1.45 to 2.95 kg m(-3), respectively. The water table contribution should be recognized as the predominant source of evapotranspiration when water table was very shallow (< 150 cm), and the irrigation and drainage system should be managed to maximize the WUE and yield of winter wheat by controlling water table at desired depth. This study helps to raise the yield of winter wheat and control shallow water tables.
SubtypeArticle
KeywordShallow Water Table Winter Wheat Seasonal Water Use Yield
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedAgriculture
WOS KeywordCROP YIELDS ; IRRIGATION ; GROWTH ; GROUNDWATER ; SALINITY ; BASIN
Indexed BySCI
Language英语
WOS SubjectAgronomy
WOS IDWOS:000303528700002
PublisherSOUTHERN CROSS PUBL
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68026
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLuo, Yi
Affiliation1.CAS, Inst Geog Sci & Nat Resources Res, Key Lab Ecol Network Observat & Modeling, Beijing 100101, Peoples R China
2.CAS, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Tiegang,Luo, Yi. Effects of shallow water tables on the water use and yield of winter wheat (Triticum aestivum L.) under rain-fed condition[J]. AUSTRALIAN JOURNAL OF CROP SCIENCE,2011,5(13):1692-1697.
APA Liu, Tiegang,&Luo, Yi.(2011).Effects of shallow water tables on the water use and yield of winter wheat (Triticum aestivum L.) under rain-fed condition.AUSTRALIAN JOURNAL OF CROP SCIENCE,5(13),1692-1697.
MLA Liu, Tiegang,et al."Effects of shallow water tables on the water use and yield of winter wheat (Triticum aestivum L.) under rain-fed condition".AUSTRALIAN JOURNAL OF CROP SCIENCE 5.13(2011):1692-1697.
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