干旱区生态环境知识资源中心(Arid): A new model for simulating root water uptake by vegetation under the impact of a dynamic groundwater table in arid regions

Arid

DOI	10.1002/hyp.14972
	A new model for simulating root water uptake by vegetation under the impact of a dynamic groundwater table in arid regions
	Qiao, Shufeng; Ma, Rui; Sun, Ziyong; Wang, Yunquan; Hu, Shun
通讯作者	Ma, R
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2023
卷号	37 期号:8
英文摘要	Ecological water conveyance is an effective measure to mitigate or reverse vegetation ecosystem degradation in arid regions, which can lead to frequent fluctuations in the groundwater table. The depth of soil water that vegetation takes up varies in response to groundwater table fluctuations in arid environments. To better characterize the root water uptake process under dynamic changes in the groundwater table in arid regions, this study proposed a new model for simulating root water uptake. The model reduces the dominant effect of root density on water uptake by introducing a correction factor and accounts for the effect of changes in the water content profile on root water uptake in arid areas. The new model was incorporated into the HYDRUS code and tested against the monitoring data of typical vegetation in the arid region of northwestern China. The results demonstrated that the soil water content simulated by the new model matched well with the observed data, which was consistent with the water uptake process under the fluctuations of the groundwater table at the study site. Compared with other models, this model can flexibly alter water uptake layers according to soil moisture conditions in arid conditions, thus providing a new method to depict the dynamic process of water uptake influenced by fluctuations in the groundwater table.
英文关键词	arid regions groundwater table fluctuation HYDRUS root water uptake model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001052893400001
WOS关键词	HYDRAULIC CONDUCTIVITY ; PHRAGMITES-COMMUNIS ; DESERT ; SYSTEMS ; PLANTS ; FLOW ; STRATEGIES ; MORPHOLOGY ; TRANSPORT ; RESPONSES
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396874
推荐引用方式 GB/T 7714	Qiao, Shufeng,Ma, Rui,Sun, Ziyong,et al. A new model for simulating root water uptake by vegetation under the impact of a dynamic groundwater table in arid regions[J],2023,37(8).
APA	Qiao, Shufeng,Ma, Rui,Sun, Ziyong,Wang, Yunquan,&Hu, Shun.(2023).A new model for simulating root water uptake by vegetation under the impact of a dynamic groundwater table in arid regions.HYDROLOGICAL PROCESSES,37(8).
MLA	Qiao, Shufeng,et al."A new model for simulating root water uptake by vegetation under the impact of a dynamic groundwater table in arid regions".HYDROLOGICAL PROCESSES 37.8(2023).