Coal mining impacts on catchment runoff

doi:10.1016/j.jhydrol.2020.125101

	Coal mining impacts on catchment runoff
	Luan, Jinkai 1,2; Zhang, Yongqiang 1; Tian, Jing 1; Meresa, Hadush 1; Liu, Dengfeng 3
刊名	JOURNAL OF HYDROLOGY
	2020-10-01
卷号	589 页码:13
关键词	Coal mining Impact Water Climate change Soil and water conservation SIMHYD-PML
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125101
通讯作者	Zhang, Yongqiang(zhangyq@igsnrr.ac.cn)
英文摘要	Coal mining could cause drastic drop of groundwater level, obvious decrease of river base flow and total runoff in dry season. In addition, the subsidence of coal mine goaf, and water-conducting fissures also could cause the loss of surface water. How to quantitatively estimate the impact of coal mining activities on runoff there becomes a major challenge. This study focuses on the Kuye River catchment, a major coal mining region in China, where accumulative anomaly analysis, the ordered clustering and the Pettitt test are carried out. Two abrupt change points are identified in 1979 and 1997. Therefore, three stages are divided: pre-1979 (minimum human activities), 1980-1997 (the soil and water conservation) and 1998-2017 (the joint impacts by soil and water conservation and coal mining). The effects of coal mining on runoff are further estimated using SIMHYD-PML hydrological model that fully considers vegetation dynamics. Its simulation results show that from 1998 to 2017 coal mining reduced the total surface runoff by 29.35% for Wangdaohengta sub-catchment, by 55.41% for Shenmu sub-catchment, and by 49.44% the entire Kuye River catchment. The coal mine driven runoff reduction is generally large in the years and seasons with large runoff. However, the environmental impact process is not uniform. The research ideas and methods reasonably separate the impact of dividing two human activities on the runoff process, which lays a solid foundation for future research.
资助项目	CAS Talents Program ; National Natural Science Foundation of China[41971032] ; National Natural Science Foundation of China[51779203]
WOS关键词	YELLOW-RIVER BASIN ; CLIMATE-CHANGE ; LOESS PLATEAU ; HYDROLOGICAL SIMULATION ; ENVIRONMENTAL IMPACTS ; UNGAUGED CATCHMENTS ; ULTRAFINE PARTICLES ; HAZARDOUS ELEMENTS ; ANNUAL STREAMFLOW ; VARIABILITY
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000568830400003
资助机构	CAS Talents Program ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156937]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yongqiang
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian 710048, Peoples R China
推荐引用方式 GB/T 7714	Luan, Jinkai,Zhang, Yongqiang,Tian, Jing,et al. Coal mining impacts on catchment runoff[J]. JOURNAL OF HYDROLOGY,2020,589:13.
APA	Luan, Jinkai,Zhang, Yongqiang,Tian, Jing,Meresa, Hadush,&Liu, Dengfeng.(2020).Coal mining impacts on catchment runoff.JOURNAL OF HYDROLOGY,589,13.
MLA	Luan, Jinkai,et al."Coal mining impacts on catchment runoff".JOURNAL OF HYDROLOGY 589(2020):13.