Effect of Heavy Metals on Decomposition and Turnover of Organic Materials

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Effect of Heavy Metals on Decomposition and Turnover of Organic Materials

更新时间：2024-11-07

- Effect of Heavy Metals on Decomposition and Turnover of Organic Materials
- Issue 1, Pages: 91-94(2006)
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- Published：2006
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Effect of Heavy Metals on Decomposition and Turnover of Organic Materials[J]. 2006, (1): 91-94.
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Effect of Heavy Metals on Decomposition and Turnover of Organic Materials[J]. 2006, (1): 91-94. DOI：

摘要

通过室内培养实验，初步研究了重金属Cd、Pb影响下。猪粪和玉米秸秆在土壤中的分解与转化规律。结果表明；添加重金属后。有机物料的分解与转化和有机物料种类、用量以及重金属类型有关。一般来看，与不添加重金属的非污染土相比。有机物料低用量（1％用量）条件下。单加Cd有抑制其分解的趋势，单加Pb则有促进其分解的趋势．同时加Cd、Pb也有抑制其分解的趋势；而高用量（5％用量）条件下，无论单加还是同时加Cd、Pb都有抑制其分解的趋势。有机物料低用量时更有利于胡敏酸（HA）形成，而高用量时则更有利于富里酸（FA）形成。有机物料低用量使HA、FA的分子结构都变得复杂化。从环境保护和提高经济效益两方面综合考虑，重金属污染土壤中有机物料施用量不宜过高。

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