根据土壤退化的某些微形态诊断特征，将紫色土退化问题归纳为土壤物理性退化、土壤构造性退化和土壤营养性退化等类；
The degradation of purple soils is able to classified into physical, constitutional and ndtriental degradation according to some micro- morphological features.
根据土壤退化的某些微形态诊断特征，将紫色土退化问题归纳为土壤物理性退化、土壤构造性退化和土壤营养性退化等类；
The degradation of purple soils is able to classified into physical, constitutional and ndtriental degradation according to some micro- morphological features.
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