干旱区生态环境知识资源中心(Arid): Subsurface irrigation with ceramic emitters: Evaluating soil water effects under multiple precipitation scenarios

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DOI	10.1016/j.agwat.2022.107851
	Subsurface irrigation with ceramic emitters: Evaluating soil water effects under multiple precipitation scenarios
	Cai, Yaohui; Wu, Pute; Gao, Xiaodong; Zhu, Delan; Zhang, Lin; Dai, Zhiguang; Chau, Henry Wai; Zhao, Xining
通讯作者	Wu, PT
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2022
卷号	272
英文摘要	China's Loess Plateau is the optimal and largest region of growing apple trees in the world. Subsurface irrigation with ceramic emitters (SICE) is an energy-efficient and water-saving approach for fruit trees in arid and semi-arid regions. Climate change, which is shifting annual precipitation regimes, is challenging the existing irrigation scheduling. However, little is known about how annual precipitation change affect the irrigation scheduling with SICE. Therefore, simulations with HYDRUS-2D and validation experiments in apple orchard were used to study the effects of the event-and annual-scale precipitation and ceramic hydraulic conductivity of emitter (CHC) on soil water dynamics. Results indicated that annul precipitation slightly affected the irrigation volume, however precipitation events had a significant effect on emitter discharge; the outflow was 22.7% and 49.7% lower in soil than in air with CHC of 0.017 and 0.077 m d(-1). There was a significant positive correlation among CHC, irrigation volume and deep percolation. Precipitation and CHC both have a significant effect on the soil water content in apple orchards, the average SWCs of wet year were 17.8%-24.7% higher than normal and dry year, the average SWC was 0.154 and 0.191 cm(3) cm(-3) with emitter hydraulic conductivities of 0.017 and 0.077 m d(-1), respectively, in 2010. SICE could provide a stable soil water environment for apple trees in different precipitation years. Apple trees could be continuously irrigated by SICE until July, and irrigation could be stopped when the average SWC exceeds 0.20 cm(3) cm(-3) after July in Loess Plateau. This work may assist orchard managers in adapting their orchards by SICE to meet apple growth under future climate change conditions.
英文关键词	Hydrus Climate change Irrigation Apple
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000861240400003
WOS关键词	DRIP IRRIGATION ; HYDRAULIC CONDUCTIVITY ; FLOW ; DISCHARGE ; EVAPOTRANSPIRATION ; RESPONSES ; MODEL ; CORN
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391641
推荐引用方式 GB/T 7714	Cai, Yaohui,Wu, Pute,Gao, Xiaodong,et al. Subsurface irrigation with ceramic emitters: Evaluating soil water effects under multiple precipitation scenarios[J],2022,272.
APA	Cai, Yaohui.,Wu, Pute.,Gao, Xiaodong.,Zhu, Delan.,Zhang, Lin.,...&Zhao, Xining.(2022).Subsurface irrigation with ceramic emitters: Evaluating soil water effects under multiple precipitation scenarios.AGRICULTURAL WATER MANAGEMENT,272.
MLA	Cai, Yaohui,et al."Subsurface irrigation with ceramic emitters: Evaluating soil water effects under multiple precipitation scenarios".AGRICULTURAL WATER MANAGEMENT 272(2022).