A method for apportionment of natural and anthropogenic contributions to heavy metal loadings in the surface soils across large-scale regions
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- 作者：Yuanan Hua ; Hefa Chengb ; hefac@umich.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Sequential extraction ; Source identification ; Conditional inference tree ; Random forest ; Soil metal loading ; Non-residual fractions
- 刊名：Environmental Pollution
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：214
- 期：Complete
- 页码：400-409
- 全文大小：2354 K
文摘
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Natural and anthropogenic contributions to soil heavy metals are tough to apportion.
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A method was established by combining sequential extraction and stochastic modeling.
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It was applied and validated in studying soil heavy metals in the Pearl River Delta.
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Anthropogenic contributions to metals in non-residual fractions could be quantified.
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The method worked well for the heavy metals contributed primarily by natural sources.