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| Soil geochemical baseline and pollution level division in Dongting lake area |
| ZHANG Jian-Xin |
| Hunan Research Academy of Geological Sciences, Changsha 410007, China |
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Abstract Deep soil and its geochemical significance in multi-objective investigation are hot topics among environmental scientists. The author compared 54 indexes and their geochemical distribution characteristics in surface soil and deep soil of Dongting plain and hillock area, and studied the element content variation from natural differentiation and anthropogenic influence in the pedogenic process. With deep soil as the reference, the author obtained regional soil geochemical background value and baseline and proposed a method for the classification of surface soil pollution levels.
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Received: 29 May 2013
Published: 10 August 2014
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