干旱区生态环境知识资源中心(Arid): How can drip irrigation save water and reduce evapotranspiration compared to border irrigation in arid regions in northwest China

Arid

DOI	10.1016/j.agwat.2020.106256
	How can drip irrigation save water and reduce evapotranspiration compared to border irrigation in arid regions in northwest China
	Wang, Yahui; Li, Sien; Qin, Shujing; Guo, Hui; Yang, Danni; Lam, Hon-Ming
通讯作者	Li, S
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2020
卷号	239
英文摘要	Drip irrigation has been widely used in arid regions in recent years. However, how the drip irrigation technology can affect soil evaporation and crop transpiration, and whether it can save water under the sufficient irrigation condition, are still of great controversy in the world. In order to interpret the problem, we initially conducted the comparative experiments between the drip-irrigated maize field and the border-irrigated maize field in large areas during 2014-2018. Evapotranspiration (ET), soil evaporation (E) and crop transpiration (T) over the drip irrigation (DI) and border irrigation (BI) treatments were continuously measured by two eddy covariance systems, micro-lysimeters and the packaged stem sap flow gauges. Results indicate that the total maize ET over the whole crop season under the DI treatment was lower than that under the BI treatment by 4%, 16 %, 2%, 16 %, -3% in 2014, 2015, 2016, 2017 and 2018, respectively. For the whole five years, DI averagely decreased ET by 7% and 40 mm per year against the traditional BI. Compared to BI, DI reduced E by 0.1 % in 2014, 50 % in 2015, 7% in 2016, 22 % in 2017, 17 % in 2018 and 23 % (30 mm) in 2019 averagely, and shortened the growth days by 15, 23, 10, 5, and 13 days, respectively, for the whole five years. Our research uncovered the ET decrease of DI against BI was mainly due to the significant reduction in E and growth days. In addition, the acceleration of crop growth induced by DI is a new finding and will provide an important scientific basis for interpreting the magic power of the technology and extending it to more arid regions to solve the global water and food crisis.
英文关键词	Border irrigation Drip irrigation Evapotranspiration Transpiration Soil evaporation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000539092600013
WOS关键词	CROP EVAPOTRANSPIRATION ; PLASTIC MULCH ; DEFICIT IRRIGATION ; SURFACE-RESISTANCE ; USE EFFICIENCY ; MAIZE ; YIELD ; PRODUCTIVITY ; SPRINKLER ; GROWTH
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324686
作者单位	[Wang, Yahui; Li, Sien; Qin, Shujing; Guo, Hui; Yang, Danni] China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China; [Lam, Hon-Ming] Chinese Univ Hong Kong, Ctr Soybean Res, State Key Lab Agrobiotechnol, Hong Kong, Peoples R China; [Lam, Hon-Ming] Chinese Univ Hong Kong, Sch Life Sci, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yahui,Li, Sien,Qin, Shujing,et al. How can drip irrigation save water and reduce evapotranspiration compared to border irrigation in arid regions in northwest China[J]. 中国农业大学,2020,239.
APA	Wang, Yahui,Li, Sien,Qin, Shujing,Guo, Hui,Yang, Danni,&Lam, Hon-Ming.(2020).How can drip irrigation save water and reduce evapotranspiration compared to border irrigation in arid regions in northwest China.AGRICULTURAL WATER MANAGEMENT,239.
MLA	Wang, Yahui,et al."How can drip irrigation save water and reduce evapotranspiration compared to border irrigation in arid regions in northwest China".AGRICULTURAL WATER MANAGEMENT 239(2020).