干旱区生态环境知识资源中心(Arid): On the Origin of Deep Soil Water Infiltration in the Arid Sandy Region of China

Arid

DOI	10.3390/w12092409
	On the Origin of Deep Soil Water Infiltration in the Arid Sandy Region of China
	Cheng, Yiben; Yang, Wenbin; Zhan, Hongbin; Jiang, Qunou; Shi, Mingchang; Wang, Yunqi
通讯作者	Cheng, YB ; Wang, YQ
来源期刊	WATER
EISSN	2073-4441
出版年	2020
卷号	12 期号:9
英文摘要	Soil water moisture is one of the most important influencing factors in the fragile ecosystems in arid sandy regions, and it serves as a bridge connecting the rainfall and groundwater, two important water sources in arid sandy regions. The hydrological process of an arid sandy region occurs sporadically and is highly non-uniform temporally, making it difficult to monitor and predict. The deep soil recharge (DSR) at a sufficiently deep soil layer (usually greater than 200 cm below ground surface) is an important indicator for groundwater recharge in the arid sandy region, and thus the quantitative determination of DSR is of great significance to the evaluation of water resources and the study of water balance in the arid sandy region. Due to the large amount of evaporation, small amount of precipitation, and the long term of the frozen-soil period in the winter and spring, the monitoring of infiltration and determination of DSR in the arid sandy region become challenging. This study selects the Ulanbuh desert plots in northern China to monitor DSR, precipitation and seasonal frozen soil thickness change, and reaches the following conclusions: Even though the annual precipitation is only 48.2 mm in the arid sandy region, DSR will still occur and replenish groundwater. The daily threshold of precipitation for generating measurable DSR is lower than 4 mm, where the DSR value is defined as the downward flux over a unit area per day hereinafter. DSR continues during the frozen period of the winter and spring seasons, and it is generated from water vapor transport and condensation in the deep sandy layer. Summer rainstorms do no show an obvious correlation with DSR, which is unexpected. This study reveals the characteristics of the dynamic water resources movement and transformation in the arid sandy area in Ulanbuh Desert and can serve as an important guideline for the quantitative assessment of water resources in arid sandy regions.
英文关键词	arid sandy land infiltration precipitation deep soil recharge freeze-thaw
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:000579961100001
WOS关键词	NET PRIMARY PRODUCTIVITY ; VEGETATION RESTORATION ; DEW FORMATION ; SURFACE ; LAND ; ECOSYSTEMS ; DESERT ; NEGEV ; DESERTIFICATION ; PRECIPITATION
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326922
作者单位	[Cheng, Yiben; Jiang, Qunou; Shi, Mingchang; Wang, Yunqi] Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing 100083, Peoples R China; [Yang, Wenbin] Chinese Acad Forestry, Inst Desertificat Control, Beijing 100093, Peoples R China; [Yang, Wenbin] Inner Mongolia Low Vegetat Coverage Sand Control, Hohho 010000, Peoples R China; [Zhan, Hongbin] Texas A&M Univ, Dept Geol & Geophys, College Stn, TX 77843 USA
推荐引用方式 GB/T 7714	Cheng, Yiben,Yang, Wenbin,Zhan, Hongbin,et al. On the Origin of Deep Soil Water Infiltration in the Arid Sandy Region of China[J]. 北京林业大学,2020,12(9).
APA	Cheng, Yiben,Yang, Wenbin,Zhan, Hongbin,Jiang, Qunou,Shi, Mingchang,&Wang, Yunqi.(2020).On the Origin of Deep Soil Water Infiltration in the Arid Sandy Region of China.WATER,12(9).
MLA	Cheng, Yiben,et al."On the Origin of Deep Soil Water Infiltration in the Arid Sandy Region of China".WATER 12.9(2020).