干旱区生态环境知识资源中心(Arid): Effects of Groundwater Table Decline on Vegetation Transpiration in an Arid Mining Area: A Case Study of the Yushen Mining Area, Shaanxi Province, China

Arid

DOI	10.1007/s10230-020-00714-6
	Effects of Groundwater Table Decline on Vegetation Transpiration in an Arid Mining Area: A Case Study of the Yushen Mining Area, Shaanxi Province, China
	Wang, Qiangmin; Dong, Shuning; Wang, Hao; Yang, Jian; Zhao, Chunhu; Dong, Xingling; Wang, Tiantian
通讯作者	Wang, QM ; Wang, H
来源期刊	MINE WATER AND THE ENVIRONMENT
ISSN	1025-9112
EISSN	1616-1068
出版年	2020
卷号	39 期号:4 页码:839-850
英文摘要	We studied the effects of coal mining on the shallow groundwater regime and vegetation in the Yushen mining area (YMA) in northwestern China using a Hydrus-1D numerical model, which was calibrated and validated with field observations, and then used to simulate the effects of groundwater table (GWT) changes on transpiration rates. The actual transpiration (T-a) was influenced by both GWT depth (GWTD) and precipitation. The ratios of T(a)and potential transpiration (T-p) vs. GWTD were fitted to a mono-exponential decay of GWTD with correlation coefficients as high as 0.98. Two threshold values, d(T-a/T-p)/d(H) <= - 2% and T-a/T-p = 0.30, were then used to calculate the unaffected and critical depths. The average unaffected and critical water depths were 3.60 and 2.20 m, respectively, which coincided fairly well with the field investigation. The sensitivity analysis showed that although reducing hydraulic conductivity (K-s) caused the T-a/T(p)to decline, decreasing the inverse of the air-entry pressure (alpha) caused the T-a/T(p)to increase, so variations in K(s)and alpha had only a minor effect. Considering that the pre-mining GWTD is between 0 and 4.0 m for about half of the YMA, the vegetation there might be degraded or lost by a GWT decline due to mining. Also, the influence of a GWT decline on transpiration was more obvious during a drought in the YMA. Therefore, effective measures must be taken to avoid a decrease in the GWT. For example, mine water should be reinjected and the mining height reduced to protect the YMA's shallow groundwater.
英文关键词	Numerical modelling Unaffected and critical depths Mitigation strategies Arid coal mining area
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000569548100001
WOS关键词	MU US DESERT ; WATER-UPTAKE ; EVAPOTRANSPIRATION ; FLUCTUATIONS ; IMPACTS ; PLANTS ; MODEL ; BASIN ; FLOW
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/2XILL650/326312
作者单位	[Wang, Qiangmin; Dong, Shuning; Wang, Hao] China Coal Res Inst, Beijing 100013, Peoples R China; [Wang, Qiangmin; Dong, Shuning; Wang, Hao; Yang, Jian; Zhao, Chunhu; Dong, Xingling; Wang, Tiantian] China Coal Technol & Engn Grp Corp, Xian Res Inst, Xian 710054, Peoples R China; [Wang, Qiangmin; Dong, Shuning; Wang, Hao; Yang, Jian; Zhao, Chunhu; Dong, Xingling; Wang, Tiantian] Shaanxi Key Lab Prevent & Control Technol Coal Mi, Xian 710054, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qiangmin,Dong, Shuning,Wang, Hao,et al. Effects of Groundwater Table Decline on Vegetation Transpiration in an Arid Mining Area: A Case Study of the Yushen Mining Area, Shaanxi Province, China[J],2020,39(4):839-850.
APA	Wang, Qiangmin.,Dong, Shuning.,Wang, Hao.,Yang, Jian.,Zhao, Chunhu.,...&Wang, Tiantian.(2020).Effects of Groundwater Table Decline on Vegetation Transpiration in an Arid Mining Area: A Case Study of the Yushen Mining Area, Shaanxi Province, China.MINE WATER AND THE ENVIRONMENT,39(4),839-850.
MLA	Wang, Qiangmin,et al."Effects of Groundwater Table Decline on Vegetation Transpiration in an Arid Mining Area: A Case Study of the Yushen Mining Area, Shaanxi Province, China".MINE WATER AND THE ENVIRONMENT 39.4(2020):839-850.