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This study was conducted to investigate the effect of waterlogging on copper, lead and cadmium fractionation in Chinese purple soil. Heavy metals were added to purple soil at 80 % field capacity and waterlogging regimes as nitrate salts of 500 mg kg−1 of copper and lead, and 5 mg kg−1 of cadmium. Metals in the incubated soil samples were fractionated termly from 1 to 35 days by the sequential extraction...
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