DOI: 10.1016/j.chemosphere.2019.125360
论文题名: Heavy metal concentrations of soils near the large opencast coal mine pits in China
作者: Liu X. ; Shi H. ; Bai Z. ; Zhou W. ; Liu K. ; Wang M. ; He Y.
刊名: Chemosphere
ISSN: 456535
出版年: 2020
卷: 244 语种: 英语
英文关键词: Coal mine soil
; Heavy metal
; Large opencast coal mine
; Mine pit
; National scale
Scopus关键词: Coal
; Coal mines
; Heavy metals
; Land use
; Soil pollution control
; Soils
; Bibliometric analysis
; Control and management
; Environmental quality
; Heavy metal concentration
; Industrial activities
; National scale
; Opencast Coal Mine
; Opencast coal minings
; Soil pollution
; chromium
; heavy metal
; mercury
; nickel
; zinc ion
; coal mine
; coal mining
; concentration (composition)
; environmental quality
; heavy metal
; opencast mining
; pollutant source
; pollution control
; soil pollution
; Article
; China
; climate change
; coal mining
; controlled study
; cultivated land
; environmental factor
; global positioning system
; grassland
; land use
; mining
; pedogenesis (soil)
; remote sensing
; soil pollution
; soil pollution control
; surface soil
; China
英文摘要: Mining is a common industrial activity and significant source of soil heavy metal (HM) pollution. However, nearly all studies on the effects of mining activities on soil environmental quality have entailed field monitoring of small regions or bibliometric analyses. This study therefore investigated the pollution of surface soils surrounding 135 large opencast coal mining pits in China. A total of 1772 surface soil samples were collected, and the concentrations of eight major HMs were determined. The HM concentrations in this study were relatively lower than the published HM concentrations of coal mine soils from 50 typical Chinese coal mines. However, pollution assessments indicated that Cd, Cu, and As concentrations were concerning. Significant correlations existed between all of the HMs and mining pit area (p < 0.01), as well as between the Pb and Zn concentrations and direction (p < 0.05). Climate conditions had large influences on the HM concentrations. The concentrations of all studied HMs, except for Ni, were highest in Anthrosols and lowest in hydromorphic soils. The concentrations of all HMs, except for Hg, in land use types showed a descending trend of cultivated land > garden plot > grassland. Significantly negative correlations (p < 0.01) between all HM concentrations and elevation were observed. Cr, Zn, and Ni were significantly and positively correlated with the slope, and no HMs, except Cr, showed significant correlations with the parcel area. This paper provides insights for the policymakers regarding soil pollution control and management strategies near coal mine pits. © 2019 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158557
Appears in Collections: 气候变化与战略
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作者单位: Institute of Soil and Solid Waste Environment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; Technical Centre for Soil, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, China; School of Land Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, China; Key Laboratory of Land Consolidation and Rehabilitation, Ministry of Land and Resources, Beijing, 100035, China; The 7th Institute of Geology & Mineral Exploration of Shandong Province, Linyi, Shandong 276006, China; School of Environment, Tsinghua University, Beijing, 100084, China
Recommended Citation:
Liu X.,Shi H.,Bai Z.,et al. Heavy metal concentrations of soils near the large opencast coal mine pits in China[J]. Chemosphere,2020-01-01,244