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Fractionation of Added Cadmium in Submerged Soils as Affected by Organic Materials

作  者:
WANG GUO;GAO SHAN;WANG YONGCHENG
单  位:
关键词:
cadmium;fractionation;organic materials;solid organic carbon (soc)
摘  要:
The effect of three organic materials (rice straw, Chinese milkvetch and pig manure) on the fractionation of cadmium added into twosoils (a red soil and a fluvo-aquic soil) was studied using submergedincubation experiment. The organic materials increased soil solidorganic carbon (SOC), pH value, the concentration of active Si in allthe treatments and active Fe and Mn in some treatments. AccumulatedSOC caused directly the increase of Cd bound to solid organic matterand consequently the decrease of exchangeable Cd.

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