Geostatistical analysis of the horizontal distribution of soil lead Guangdong,China
The spatial distributions of soil lead concentration in three horizontal soils in Guangdong,China,were surveyed and analyzed using geostatisitic and GIS.A total of 260 soil profiles data followed an approximately lognormal distribution.The Pb geometric mean concentration of 23.3 mg/kg in surface soils is higher than that in global soils.From A-to C-horizon Pb geometric mean concentrations had an increasing tendency of 23.3,27.2 to 28.6 mg/kg.The ordinary point kriging estimates of Pb concentration were mapped.It showed higher local concentration around big city and historical mining area.The soil lead distribution was mainly dependent on bedrock properties.The anthropogenic impact is distinguished in local areas such as some big cities and mine areas，where the lead concentration is higher than their guide value.The results showed a strong gradient of anthropogenic stock of Pb around the Guangzhou urban area.
Lead Pb Pb distribution Heavy metal
C.L.Yang Z.F.Wu H.H.Zhang J.Cheng P Liu X.N .Liu R.P.Guo J.H.Zhang
Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,510640,China;Guangdong Institute of Guangdong Institute of Eco-environmental and Soil Sciences,510650,Guangzhou,China Graduate University of the Chinese Academy of Sciences,100049,Beijing,China
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）