Influence of different amounts of irrigation water on salt leaching and cotton growth under drip irrigation in an arid and saline area

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	Influence of different amounts of irrigation water on salt leaching and cotton growth under drip irrigation in an arid and saline area
	Wang R. S.(王若水) ; Kang Y. H. ; Wan S. Q. ; Hu W. ; Liu S. P. ; Jiang S. F. ; Liu S. H.
刊名	Agricultural Water Management
	2012
卷号	110 页码:109-117
关键词	Soil salinity SAR Soil matric potential Cotton physiology sodic soils l. yield phytoremediation reclamation strategies potato
ISSN号	0378-3774
通讯作者	Kang, YH
英文摘要	In order to evaluate the effects of different amounts of water, applied by drip irrigation, to a saline-sodic soil (surface ECe > 40 dS/m; SAR > 40), on cotton growth and soil salinity, a three-year experiment was conducted on a saline wasteland in Xinjiang Northwest China during 2008-2010. Five water treatments were used for this experiment based on the soil-water matric potential (SMP) measured 20 cm beneath a drip emitter located close to the plant: the SMP levels used to determine when to irrigate were -5 kPa (S1), -10 kPa (S2). -15 kPa (S3), -20 kPa (S4), and -25 kPa (S5). After three years, both the soil salinity (ECe) and sodicity (SAR) declined significantly in 0-120 cm depth and more reduction were achieved in 0-40 cm soil depth than in 40-80 and 80-120 cm depths. Moreover, the reductions of SAR were smaller than those of ECe. Additionally, the amount of salt removed from the 0 to 80 cm depth decreased with decreasing SMP threshold. The S1 treatment resulted in the highest lint yields in 2009 and 2010. Considering the effects of leached salts on the environment of deep soil layer and the yield of cotton, an SMP of -10 kPa can be used to trigger irrigation for cotton in the first three years for saline wasteland reclamation in Xinjiang Northwest China. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	National Key Technology R&D Program of China 2009BAC55807；Chinese Academy of Sciences KZCX2-XB2-13
语种	英语
公开日期	2012-09-04
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/26771]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Wang R. S.,Kang Y. H.,Wan S. Q.,et al. Influence of different amounts of irrigation water on salt leaching and cotton growth under drip irrigation in an arid and saline area[J]. Agricultural Water Management,2012,110:109-117.
APA	Wang R. S..,Kang Y. H..,Wan S. Q..,Hu W..,Liu S. P..,...&Liu S. H..(2012).Influence of different amounts of irrigation water on salt leaching and cotton growth under drip irrigation in an arid and saline area.Agricultural Water Management,110,109-117.
MLA	Wang R. S.,et al."Influence of different amounts of irrigation water on salt leaching and cotton growth under drip irrigation in an arid and saline area".Agricultural Water Management 110(2012):109-117.