title: Mapping of Cu and Pb contaminations in soil using combined geochemistry, topography, and remote sensing: a case study in the Le'an River floodplain, China.
abstract: Heavy metal pollution in soil is becoming a widely concerning environmental problem in China. The aim of this study is to integrate multiple sources of data, namely total Cu and Pb contents, digital elevation model (DEM) data, remote sensing image and interpreted land-use data, for mapping the spatial distribution of total Cu and Pb contamination in top soil along the Le'an River and its branches. Combined with geographical analyses and watershed delineation, the source and transportation route of pollutants are identified. Regions at high risk of Cu or Pb pollution are suggested. Results reveal that topography is the major factor that controls the spatial distribution of Cu and Pb. Watershed delineation shows evidence that the streamflow resulting from rainfall is the major carrier of metal pollutants.
authors: School of Resource and Environmental Science, Wuhan University, Luoyu Road 129, Wuhan 430079, China. kellypcyy@126.com
authors: Yiyun
authors: Y
authors: Chen
authors: Yaolin
authors: Y
authors: Liu
authors: Yanfang
authors: Y
authors: Liu
authors: Aiwen
authors: A
authors: Lin
authors: Xuesong
authors: X
authors: Kong
authors: Dianfeng
authors: D
authors: Liu
authors: Xiran
authors: X
authors: Li
authors: Yang
authors: Y
authors: Zhang
authors: Yin
authors: Y
authors: Gao
authors: Dun
authors: D
authors: Wang
mesh_terms: D002681:China; D003300:Copper / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D005843:Geography; D007854:Lead / Q000032:analysis*; D058998:Remote Sensing Technology; D045483:Rivers; D012989:Soil Pollutants / Q000032:analysis*; D014881:Water Supply
chemical_list: D012989:Soil Pollutants; D007854:Lead; D003300:Copper