干旱区生态环境知识资源中心(Arid): Effect of natural factors and management practices on agricultural water use efficiency under drought: A meta-analysis of global drylands

Arid

DOI	10.1016/j.jhydrol.2021.125977
	Effect of natural factors and management practices on agricultural water use efficiency under drought: A meta-analysis of global drylands
	Yu, Liuyang; Zhao, Xining; Gao, Xiaodong; Jia, Ruhao; Yang, Menghao; Yang, Xiaolin; Wu, Yong; Siddique, Kadambot H. M.
通讯作者	Zhao, XN (corresponding author), Northwest A&F Univ, Inst Soil & Water Conservat, Xinong 26 Rd, Yangling 712100, Shaanxi, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	594
英文摘要	Agriculture's need to feed the growing population is challenged by the decline in available water resources especially in the context of global climate change. Improving crop water use efficiency (WUE) will help to safeguard the environmental sustainability of food production in dryland areas. However, the impact of drought on crop WUE varies-a comprehensive and quantitative understanding of relevant factors is needed to support evidence-based management decisions. Here, we used a meta-analysis of global drylands (81 studies with 836 paired observations) to evaluate the response of various crop WUEs to drought based on various natural and human induced factors. Our results showed that responses of crop types' WUE varied under drought intensity, which probably a reference for crop selection in drylands. Cotton could be one of crop selection reference in hyper-arid or arid regions, and legume is not recommended for drylands without irrigation. Cereal crop are suitable for growing in semi-arid or dry sub-humid areas. Moreover, soil improvement and fertilizer management are the effective methods to alleviate drought stress, in addition to irrigation. Soil with medium-texture, 1.3-1.4 g cm(-3) bulk density and 15-20 g kg(-1) organic matter is beneficial for improving WUE under drought. Fertilizer should be carefully considered and not exceed 200 kg ha(-1) for wheat in drylands. Water deficit can improve crop WUE, but should not exceed 40% of the full irrigation amount. Field management practices, such as mulching and weed control, can help alleviate drought by regulating WUE to some extent. This study evaluated the responses of various crop WUEs to drought and highlighted the factors contributing to and/or decreasing crop WUE from natural factor and management practices, which provides a basis for agricultural drought mitigation strategies under future climate change in dryland areas.
英文关键词	Crop selection Yield Dryland agriculture Water productivity Irrigation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000641589600078
WOS关键词	WHEAT ; CROP
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	西北农林科技大学 ; 中国农业大学 ; University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350884
作者单位	[Yu, Liuyang; Jia, Ruhao] Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China; [Yu, Liuyang; Jia, Ruhao; Yang, Menghao] Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Are, Minist Educ, Yangling 712100, Shaanxi, Peoples R China; [Zhao, Xining; Gao, Xiaodong] Northwest A&F Univ, Inst Soil & Water Conservat, Xinong 26 Rd, Yangling 712100, Shaanxi, Peoples R China; [Zhao, Xining; Gao, Xiaodong; Yang, Menghao] Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China; [Yang, Xiaolin] China Agr Univ, Coll Agron & Biotechnol, Beijing 100193, Peoples R China; [Wu, Yong] Natl Agrotech Extens & Serv Ctr, Beijing 100125, Peoples R China; [Siddique, Kadambot H. M.] Univ Western Australia, UWA Inst Agr, Perth, WA 6001, Australia
推荐引用方式 GB/T 7714	Yu, Liuyang,Zhao, Xining,Gao, Xiaodong,et al. Effect of natural factors and management practices on agricultural water use efficiency under drought: A meta-analysis of global drylands[J]. 西北农林科技大学, 中国农业大学, University of Western Australia,2021,594.
APA	Yu, Liuyang.,Zhao, Xining.,Gao, Xiaodong.,Jia, Ruhao.,Yang, Menghao.,...&Siddique, Kadambot H. M..(2021).Effect of natural factors and management practices on agricultural water use efficiency under drought: A meta-analysis of global drylands.JOURNAL OF HYDROLOGY,594.
MLA	Yu, Liuyang,et al."Effect of natural factors and management practices on agricultural water use efficiency under drought: A meta-analysis of global drylands".JOURNAL OF HYDROLOGY 594(2021).