Geostatistical analysis of the horizontal distribution of soil lead Guangdong, China

C. L. Yang; Z. F. Wu; H. H. Zhang; J. Cheng; P. Liu; X. N. Liu; R. P. Guo; J. H. Zhang

doi:10.1117/12.813016

3 November 2008 Geostatistical analysis of the horizontal distribution of soil lead Guangdong, China

C. L. Yang, Z. F. Wu, H. H. Zhang, J. Cheng, P. Liu, X. N. Liu, R. P. Guo, J. H. Zhang

Proceedings Volume 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments; 714512 (2008) https://doi.org/10.1117/12.813016
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

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.

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C. L. Yang, Z. F. Wu, H. H. Zhang, J. Cheng, P. Liu, X. N. Liu, R. P. Guo, and J. H. Zhang "Geostatistical analysis of the horizontal distribution of soil lead Guangdong, China", Proc. SPIE 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments, 714512 (3 November 2008); https://doi.org/10.1117/12.813016

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KEYWORDS

Lead

Soil science

Soil contamination

Mining

Geographic information systems

Metals

Spherical lenses

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