Soil quality is one of the most important environmental factors in sustaining the earth biosphere and developing sustainable agricultural product.Zhifanggou catchment of Ansai county of Shaanxi province was selected as the study area.Field investigations had been carried out and 8 sample plots with different vegetation types and ages were chosen.The effects of vegetation types on soil properties were analyzed through measuring soil particle size distributions,soil water stable aggregates,soil organic matter...
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