干旱区生态环境知识资源中心(Arid): Evapotranspiration and groundwater exchange for border and drip irrigated maize field in arid area with shallow groundwater

Arid

DOI	10.1007/s12665-022-10715-z
	Evapotranspiration and groundwater exchange for border and drip irrigated maize field in arid area with shallow groundwater
	Rong, Yao; Wang, Weishu; Huo, Zailin; Wang, Chaozi; Zhang, Chenglong; Huang, Guanhua
通讯作者	Huo, ZL
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2023
卷号	82 期号:1
英文摘要	Irrigation effectively guarantees the development of agriculture in arid areas, and groundwater is an essential source of supporting farmland water consumption in shallow groundwater areas. However, it is difficult to accurately quantify the contribution of groundwater to evapotranspiration (ET) on a short time scale, and the influence of different irrigation methods on the hydrological process of farmland are rarely involved. It is significant to understand this process for managing agricultural water use and assessing groundwater resources, especially in arid areas with shallow groundwater. The main purposes of this study were to evaluate the effects of border and drip irrigation on maize ET, and to assess the contribution of groundwater to crop water consumption under shallow groundwater. In this study, eddy covariance system and meteorological station were used to estimate actual ET and potential ET, and the groundwater depth, soil water content in the maize field were monitored. Water balance equation was used to clarify the effective utilization efficiency of irrigation water and water transformation process. The results showed that the total ET of maize growth period under border irrigation and drip irrigation were 490.3 mm and 536.9 mm, and the crop coefficient at the critical growth period were 1.11 and 1.22, respectively. According to the water balance calculation, the effective utilization efficiency of irrigation water under the two irrigation methods were only 0.72 and 0.66. The daily average water flux of groundwater evaporation under border irrigation was around 1.55 mm, which was less than 2.58 mm under drip irrigation over the whole growth period of maize. The contribution rates of groundwater evaporation to crop water consumption of border irrigation at whole growth stage was 26%, which was less than 41% of drip irrigation. These results highlighted the effects of irrigation methods and shallow groundwater on the crop evapotranspiration and field water flux exchange in arid regions, and provided a new perspective for understanding agro-hydrological processes.
英文关键词	Border irrigation Drip irrigation Maize evapotranspiration Water flux exchange Groundwater contribution Eddy covariance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000905643500002
WOS关键词	WATER-TABLE FLUCTUATIONS ; SUBSURFACE DRIP ; CROP EVAPOTRANSPIRATION ; DEFICIT IRRIGATION ; YIELD ; AGRICULTURE ; COEFFICIENT ; VEGETATION ; RECHARGE ; QUALITY
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396113
推荐引用方式 GB/T 7714	Rong, Yao,Wang, Weishu,Huo, Zailin,et al. Evapotranspiration and groundwater exchange for border and drip irrigated maize field in arid area with shallow groundwater[J],2023,82(1).
APA	Rong, Yao,Wang, Weishu,Huo, Zailin,Wang, Chaozi,Zhang, Chenglong,&Huang, Guanhua.(2023).Evapotranspiration and groundwater exchange for border and drip irrigated maize field in arid area with shallow groundwater.ENVIRONMENTAL EARTH SCIENCES,82(1).
MLA	Rong, Yao,et al."Evapotranspiration and groundwater exchange for border and drip irrigated maize field in arid area with shallow groundwater".ENVIRONMENTAL EARTH SCIENCES 82.1(2023).