干旱区生态环境知识资源中心(Arid): Effect of Deficit Irrigation on the Growth, Water Use Characteristics and Yield of Cotton in Arid Northwest China

Arid

DOI	10.1016/S1002-0160(15)30071-0
	Effect of Deficit Irrigation on the Growth, Water Use Characteristics and Yield of Cotton in Arid Northwest China
	Yang Chuanjie; Luo Yi; Wu Na
来源期刊	Pedosphere
ISSN	1002-0160
出版年	2015
卷号	25 期号:6 页码:910-924
英文摘要	Water shortage is a key constraint to sustainable agricultural production in Xinjiang, Northwest China. To enhance the use efficiency of valuable irrigation water resources, a 2-year experiment (2010-2011)was conducted to quantify the response of cotton (Gossypium hirsutum L.)growth and yield to different degrees of deficit irrigation (DI)regimes; to determine the effects of DI on the characteristics of water use for cotton, seasonal water use, available soil water in the root zone, soil water depletion, evapotranspiration (ET)-based water use efficiency and irrigation-based water use efficiency, and to determine the best DI regime for optimal water-saving and yield output. The plots were irrigated at 100% (100ET), 85% (85ET), 70% (70ET), 55% (55ET)and 45% (45ET)of the regional ET of cotton in northern Xinjiang. The effect of DI irrigation on water use characteristics was evaluated by analyzing available soil water and soil water depletion in the root zone along with water use efficiencies of cotton. The study showed that the growth, water use characteristics and yield of cotton varied with irrigation regime. Seasonal ET and seed cotton yield were linearly correlated with irrigation amount. The second-order polynomial equation best approximated water-yield relationship of cotton in the study area. Cotton yield response factor was 0.65, suggesting limited water conditions were suitable for cotton cultivation. Economic evaluation of DI treatments confirmed that the yield loss was less than 10% under 70ET and 85ET, which was acceptable for greater sustainability. The results suggested that proper DI schemes were necessary for sustainable cotton production in the region. While irrigation at 85ET was safe for high cotton yield, irrigation at 70ET was a viable alternative under limited irrigation water availability.
英文关键词	available soil water evapotranspiration soil water dynamics water use efficiencies water-yield relationship
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5556906
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335571
作者单位	Yang Chuanjie, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences, Beijing 100101, China.; Luo Yi, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences, Beijing 100101, China.; Wu Na, University of Chinese Academy of Sciences, Beijing 100049, China.
推荐引用方式 GB/T 7714	Yang Chuanjie,Luo Yi,Wu Na. Effect of Deficit Irrigation on the Growth, Water Use Characteristics and Yield of Cotton in Arid Northwest China[J],2015,25(6):910-924.
APA	Yang Chuanjie,Luo Yi,&Wu Na.(2015).Effect of Deficit Irrigation on the Growth, Water Use Characteristics and Yield of Cotton in Arid Northwest China.Pedosphere,25(6),910-924.
MLA	Yang Chuanjie,et al."Effect of Deficit Irrigation on the Growth, Water Use Characteristics and Yield of Cotton in Arid Northwest China".Pedosphere 25.6(2015):910-924.