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Characteristics of delta D and delta O-18 of Reclaimed Mine Soil Water Profile and Its Source Water Bodies in a Coal Mining Subsidence Area with High Groundwater Level-A Case Study from the Longdong Coal Mining Subsidence Area in Jiangsu Province, China

文献类型：期刊论文

作者Ge, Mengyu3; Chen, Baozhang1,2,3,4
刊名WATER
出版日期2020
卷号12期号:1页码:21
关键词reclaimed mine-soil coal mining subsidence area soil water dynamics water stable isotopes precipitation surface water ground water
DOI10.3390/w12010274
通讯作者Chen, Baozhang(baozhang.chen@igsnrr.ac.cn)
英文摘要Coal mining, as one of the key drivers of land degradation worldwide, caused land subsidence problems. In this study, we conducted experimental research to explore the reclaimed mine soil (RMS) water dynamics and its sources in relation to reclaimed land use types using stable water isotopes in the Longdong coal mining area with high groundwater level in east China. We collected water samples seven times in 2017 from all of these water bodies (precipitation, surface waters (river water and water from subsidence pits (WSP)), groundwater and soil water). Our main findings are three fold: (1) the values of slope and intercept of the local meteoric water line of Craig (LMWL) of precipitation for the study area are higher than the global meteoric water line of Craig (GMWL) because of the humid monsoon climate zoon, and the values of delta D and delta O-18 of surface waters and soil water and groundwater deviated from LMWL to some extent with a range of 5-30%, and the D and O-18 of precipitation and the surface waters have higher seasonal variation than groundwater; (2) the values of delta D and delta O-18 of RMS for the whole soil profile (0-100 cm) are lower than that of precipitation and have obvious seasonal variations and great fluctuation in the topsoil (0-30/40 cm) and decrease at depth (30/40-70 cm) and stable in deep soil layers (below 70 cm deep); (3) the RMS with forest and crop enhanced water infiltration capacity and soil water mixing strength compared with the waste RMS, so establishment of forest and crops should be encouraged in the RMS; (4) the main sources of topsoil (0-30 cm for crop and 0-40 cm for forest) of RMS are precipitation through infiltration, the main supply for deep soil water (below 70 cm deep) is groundwater, and the soil water for the middle deep soil layers (30/40-70 cm) is mainly from mixing sources of precipitation, groundwater, and river water through pant root water absorbing and groundwater upshifting.
WOS关键词OXYGEN ISOTOPIC COMPOSITION ; STABLE-ISOTOPE ; RESIDENCE TIMES ; RIVER WATER ; SEASONAL-VARIATIONS ; DEUTERIUM EXCESS ; O-18 VARIATIONS ; PRECIPITATION ; RECHARGE ; SURFACE
资助项目National Key R&D Program of China[2018YFA0606001] ; National Key R&D Program of China[2017YFA0604301] ; National Key R&D Program of China[2017YFA0604302] ; National Natural Science Foundation of China[41771114] ; Chinese Academy of Sciences[131A11KYSB20170025]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000519847200274
出版者MDPI
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/133362]  
专题中国科学院地理科学与资源研究所
通讯作者Chen, Baozhang
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, 11A Datun Rd, Beijing 100101, Peoples R China
2.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Nanjing 210044, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Ge, Mengyu,Chen, Baozhang. Characteristics of delta D and delta O-18 of Reclaimed Mine Soil Water Profile and Its Source Water Bodies in a Coal Mining Subsidence Area with High Groundwater Level-A Case Study from the Longdong Coal Mining Subsidence Area in Jiangsu Province, China[J]. WATER,2020,12(1):21.
APA Ge, Mengyu,&Chen, Baozhang.(2020).Characteristics of delta D and delta O-18 of Reclaimed Mine Soil Water Profile and Its Source Water Bodies in a Coal Mining Subsidence Area with High Groundwater Level-A Case Study from the Longdong Coal Mining Subsidence Area in Jiangsu Province, China.WATER,12(1),21.
MLA Ge, Mengyu,et al."Characteristics of delta D and delta O-18 of Reclaimed Mine Soil Water Profile and Its Source Water Bodies in a Coal Mining Subsidence Area with High Groundwater Level-A Case Study from the Longdong Coal Mining Subsidence Area in Jiangsu Province, China".WATER 12.1(2020):21.

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