title: Landscape ecology of the Guanting Reservoir, Beijing, China: multivariate and geostatistical analyses of metals in soils.
abstract: Surface soil samples were collected from 52 sites around Guanting Reservoir in Beijing, China, and contents of 'total' metals (Cu, Zn, Pb, Cd, As, Ni and Cr) were determined. The results indicate that the degree of heavy metal pollution in the soils declines in the order of Cd>Cr>Zn>As>Cu>Ni>Pb. Based on the results of a combination of multivariate statistics and geostatiscal analyses, it was concluded that land application of phosphate fertilizer, wastewater and sludge were the primary sources of Cd and Zn in soils. Whereas As, Cu, Cr and Ni in some soils were due to natural rock weathering. The sources of Pb in soils only partially originated from land application of phosphate fertilizer, but mainly from vehicle exhaust. The greatest concentrations of all metals, except for Pb, were found in Huailai County and the towns of Yanghedaqiao and Guanting.
authors.affiliation: Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, State Key Lab of System Ecology, Shuangqing Road, No. 18, Haidian District, Beijing 10085, People's Republic of China.
authors.forename: Wei
authors.initials: W
authors.lastname: Luo
authors.forename: Tieyu
authors.initials: T
authors.lastname: Wang
authors.forename: Yonglong
authors.initials: Y
authors.lastname: Lu
authors.forename: John P
authors.initials: JP
authors.lastname: Giesy
authors.forename: Yajuan
authors.initials: Y
authors.lastname: Shi
authors.forename: Yuanming
authors.initials: Y
authors.lastname: Zheng
authors.forename: Ying
authors.initials: Y
authors.lastname: Xing
authors.forename: Guanghong
authors.initials: G
authors.lastname: Wu
mesh_terms: D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D002681:China; D002857:Chromium / Q000032:analysis; D003300:Copper / Q000032:analysis; D005308:Fertilizers / Q000032:analysis; D040362:Geographic Information Systems; D007854:Lead / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D009532:Nickel / Q000032:analysis; D025341:Principal Component Analysis / Q000379:methods; D012722:Sewage; D012989:Soil Pollutants / Q000032:analysis*; D014865:Waste Disposal, Fluid; D014881:Water Supply; D015032:Zinc / Q000032:analysis
chemical_list: D005308:Fertilizers; D019216:Metals, Heavy; D012722:Sewage; D012989:Soil Pollutants; D002104:Cadmium; D002857:Chromium; D007854:Lead; D003300:Copper; D009532:Nickel; D015032:Zinc; D001151:Arsenic