干旱区生态环境知识资源中心(Arid): Representing Irrigation Processes in the Land Surface-Hydrological Model and a Case Study in the Yangtze River Basin, China

Arid

DOI	10.1029/2021MS002653
	Representing Irrigation Processes in the Land Surface-Hydrological Model and a Case Study in the Yangtze River Basin, China
	Xia, Qian; Liu, Pan; Fan, Yangzhen; Cheng, Lei; An, Rihui; Xie, Kang; Zhou, Liting
通讯作者	Liu, P
来源期刊	JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
EISSN	1942-2466
出版年	2022
卷号	14 期号:7
英文摘要	Irrigation is the dominant section of human water use, exerting essential impacts on hydrological processes and water resources. To more realistically simulate irrigation processes in water-rich regions, an irrigation scheme is incorporated into a land surface-hydrological model. It calculates the irrigation water requirement according to meteorological conditions, cropping area and growing stage, and root-zone soil moisture, and determines the irrigation water withdrawal based on the available water resources as well as describing water extraction and irrigation processes in the model. The coupled model is applied to the Yangtze River Basin (YRB) in China, and verified using the observed daily river discharge from 1987 to 1990, evapotranspiration and irrigation amounts from 1999 to 2003. The results first show that the model can well reproduce hydrological processes within the basin, and the simulated irrigation largely agrees with the observation, in terms of annual irrigation and its spatial pattern. Second, inclusion of irrigation processes allows the model to better estimate evapotranspiration, with relative biases decreased from about -10% to -3%. It is also found that in comparison to arid/semi-arid areas, although presenting a less effect on river discharge and groundwater, the irrigation in the YRB significantly alters hydrological processes through water redistribution. The irrigation-induced evapotranspiration increment and runoff decrease indicate a shift in the surface water and energy balance, implying a potential effect on the atmosphere. Therefore, representing irrigation processes properly is important, particularly for understanding the coupling effect of the nature-human system and improving the hydrological prediction accuracy.
英文关键词	irrigation NoahMP-HMS-IRR water withdrawal Yangtze River Basin water budget evaporation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000819391700001
WOS关键词	ANTHROPOGENIC GROUNDWATER EXPLOITATION ; CLIMATIC RESPONSES ; INTEGRATED MODEL ; ENERGY BALANCES ; WATER STORAGE ; IMPACT ; EVAPORATION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393260
推荐引用方式 GB/T 7714	Xia, Qian,Liu, Pan,Fan, Yangzhen,et al. Representing Irrigation Processes in the Land Surface-Hydrological Model and a Case Study in the Yangtze River Basin, China[J],2022,14(7).
APA	Xia, Qian.,Liu, Pan.,Fan, Yangzhen.,Cheng, Lei.,An, Rihui.,...&Zhou, Liting.(2022).Representing Irrigation Processes in the Land Surface-Hydrological Model and a Case Study in the Yangtze River Basin, China.JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS,14(7).
MLA	Xia, Qian,et al."Representing Irrigation Processes in the Land Surface-Hydrological Model and a Case Study in the Yangtze River Basin, China".JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS 14.7(2022).