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Soil quality under different uses and native Cerrado

Sustainable soil use is becoming increasingly relevant given the increase of anthropic activities. In order to evaluate the soil quality, soil samples were collected from five areas: natural Cerrado (reference), native pasture, planted pasture, annual crops under conventional tillage and pine forest. The areas are located in the Federal District, Brazil, in a clayey Red Yellow Latosol (Acrustox). The following soil quality attributes were measured: bulk density, mechanical resistance to penetration, water infiltration rate, organic matter content, cation exchange capacity, carbon of microbial biomass and basal respiration. Based on the obtained data a comparative diagram was drawn and a soil quality index calculated for each type of use. The results showed a close inverse relationship between soil quality and intensity of use to which the areas were submitted. By analyzing these attributes and the establishment of a comparative model it was possible to evaluate the level of soil degradation caused by each type of use in each area.

environmental impacts; soil physics; soil chemistry; soil biology


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