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土壤 2011
Charge properties in three kinds of red soils from different parent materials
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Abstract:
The different charge properties among three kinds of red soil derived from different parent materials were studied and the influences of different parent materials on soil charge were compared.The results showed that the total negative charge(CECpH8.2) in purple soil was higher than that in Quaternary red clay(Q-red clay).The positive charge(AEC)in Q-red clay was higher than those in the purple soil and the soil from granite.AEC in three kinds of red soils had significantly negative correlation with pH.AEC ...