干旱区生态环境知识资源中心(Arid): The source of rock moisture in a sandstone cave in arid northern China: rainfall infiltration or vapor condensation?

Arid

DOI	10.1007/s10040-023-02725-3
	The source of rock moisture in a sandstone cave in arid northern China: rainfall infiltration or vapor condensation?
	Jiang, Xiao-Wei; Ouyang, Kai-Gao; Tang, Xu-Lin; Tan, Shu-Cong; Shi, Jia-Xin; Li, Na; Yan, Hong-Bin; Ren, Jian-Guang; Wan, Li
通讯作者	Jiang, XW
来源期刊	HYDROGEOLOGY JOURNAL
ISSN	1431-2174
EISSN	1435-0157
出版年	2024
卷号	32 期号:1 页码:267-277
英文摘要	During summers with intensive rainfall, water droplets and/or rock moisture are observed in some of the ancient caves of the Yungang Grottoes, northern China. There is debate on whether the water is derived from infiltrating precipitation or from condensation of water vapor, and this restricts the choice of appropriate methods to alleviate weathering of the stone carvings. By monitoring soil water content at the top of the vadose zone and analyzing responses to rainfall events, it is found that the silt overlying the rock mass plays the role of barrier to rainfall infiltration. By monitoring rock moisture in a cave wall at shallow depth, using frequency domain reflectometry, it was found that variations in rock moisture are directly controlled by the fluctuating vapor concentration. Moreover, there is a significant linear relationship between the magnitude of rock wetting (moisture addition) and the cumulative difference in vapor concentration between the inside and outside of the cave. Thus, the condensation of water vapor, which leads to decreased vapor concentration in the cave atmosphere, is the source of the rock moisture. Also, the period associated with rapidly increasing rock moisture and the highest rock moisture corresponds to the period with occurrence of water droplets in some caves. This study confirms that the water vapor is an important source of water which is responsible for weathering in caves, and indicates that the approach of estimating groundwater recharge based on cave drip rates should be used with caution, especially in arid environments.
英文关键词	Condensation water Soil moisture Rock weathering Vadose zone Arid regions China
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001083632200001
WOS关键词	DRIP WATERS ; SOIL-WATER ; GROUNDWATER ; LIMESTONE ; DISCHARGE ; LIDAR
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404095
推荐引用方式 GB/T 7714	Jiang, Xiao-Wei,Ouyang, Kai-Gao,Tang, Xu-Lin,et al. The source of rock moisture in a sandstone cave in arid northern China: rainfall infiltration or vapor condensation?[J],2024,32(1):267-277.
APA	Jiang, Xiao-Wei.,Ouyang, Kai-Gao.,Tang, Xu-Lin.,Tan, Shu-Cong.,Shi, Jia-Xin.,...&Wan, Li.(2024).The source of rock moisture in a sandstone cave in arid northern China: rainfall infiltration or vapor condensation?.HYDROGEOLOGY JOURNAL,32(1),267-277.
MLA	Jiang, Xiao-Wei,et al."The source of rock moisture in a sandstone cave in arid northern China: rainfall infiltration or vapor condensation?".HYDROGEOLOGY JOURNAL 32.1(2024):267-277.