干旱区生态环境知识资源中心(Arid): Alterations in soil moisture dynamics due to open-pit coal mining semi-arid regions: Perceptions based on soil water stable isotopes and underground water conductivity analysis

Arid

DOI	10.1007/s11368-024-03840-8
	Alterations in soil moisture dynamics due to open-pit coal mining semi-arid regions: Perceptions based on soil water stable isotopes and underground water conductivity analysis
	Wang, Xikai; Peng, Suping; He, Yunlan; Yu, Zhenzhen
通讯作者	Wang, XK
来源期刊	JOURNAL OF SOILS AND SEDIMENTS
ISSN	1439-0108
EISSN	1614-7480
出版年	2024
英文摘要	PurposeOver the past three decades, open-pit mining has been expanding in arid and semi-arid areas of China.Open-pit mining profoundly changes the soil environment and has a profound impact on the circulation of soil water in the aeration zone.Therefore, this research explores the impacts of open-pit coal mining on soil moisture processes in the semi-arid grasslands of Eastern Inner Mongolia Autonomous Region, China.Materials and methodsSoil samples were collected from depths of 0-500 cm at Shengli No. 1 open-pit mine's inner dump and a nearby natural grassland. These soil samples were analyzed for stable isotope characteristics (delta 2H,delta 18O\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\delta <^>2 H, \delta <^>{18} O}$$\end{document}) and moisture content. Collection of underground water samples inside and outside the mining area for conductivity analysis.Results and discussionSoil evaporation loss in the mine's inner dump was significantly higher than in the grassland, with rates of 22.26% for delta 18O\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\delta <^>{18} O}$$\end{document} and 6.61% for delta 2H\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\delta <^>2 H}$$\end{document}. The limiting depth of soil evaporation at the mine was found to be 260 cm, compared to 200 cm in the grassland. The increased underground water conductivity in the mine area was linked to heightened soil evaporation loss. Isotopic profiling of the soil indicated that the open-pit mining led to deeper preferential flow infiltration during heavy precipitation, reaching 280 cm in the mine area versus 220 cm in the grassland.ConclusionsThe surface soil moisture content (SMC) increased due to mining activities intensified water-heat exchanges with the atmosphere, leading to more frequent and severe wet-dry cycles. This study provides a comprehensive understanding of open-pit mining's impact on SMC, evaporation, and infiltration in semi-arid areas, offering critical insights for ecological reclamation and sustainable mine construction.
英文关键词	Open-pit mining Stable isotopes Groundwater conductivity Soil moisture evaporation Soil moisture infiltration
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001251513300002
WOS关键词	WASTE ROCK DUMPS ; UNSATURATED ZONE ; PREFERENTIAL FLOW ; ELECTRICAL-CONDUCTIVITY ; BRITISH-COLUMBIA ; ELK VALLEY ; GROUNDWATER ; EVAPORATION ; EXCHANGE ; NITRATE
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404703
推荐引用方式 GB/T 7714	Wang, Xikai,Peng, Suping,He, Yunlan,et al. Alterations in soil moisture dynamics due to open-pit coal mining semi-arid regions: Perceptions based on soil water stable isotopes and underground water conductivity analysis[J],2024.
APA	Wang, Xikai,Peng, Suping,He, Yunlan,&Yu, Zhenzhen.(2024).Alterations in soil moisture dynamics due to open-pit coal mining semi-arid regions: Perceptions based on soil water stable isotopes and underground water conductivity analysis.JOURNAL OF SOILS AND SEDIMENTS.
MLA	Wang, Xikai,et al."Alterations in soil moisture dynamics due to open-pit coal mining semi-arid regions: Perceptions based on soil water stable isotopes and underground water conductivity analysis".JOURNAL OF SOILS AND SEDIMENTS (2024).