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Effect of Organic Materials on Speciation of Copper in Soil Solution

作  者:
WANG GUO;CHEN JIANBIN;GU XUNGANG
单  位:
关键词:
copper;dissolved organic carbon;organic material;speciation
摘  要:
Incubation of two soils, a red soil derived from granodiorte and afluvo-aquic soil from alluvial deposit, with rice straw, Chinese milkvetch and pig manure under submerged condition were conducted tostudy the species of Cu in soil solutions as affected by the organicmaterials. The organic materials increased total soluble Cu byraising dissolved organic carbon (DOC) in soil solution when thesolution pH values were below the range in which Cu depositedquickly. When the solution pH rose to this range, the increase of DOCdid not raise total soluble Cu.

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