WATER INFILTRATION RATE IN DISTROFERRIC RED LATOSOL UNDER DIFFERENT CROPPING SYSTEMS - DOI: 10.7127/rbai.v11n300555

Resumo

This study aimed to evaluate the water infiltration, hydraulic conductivity and hydraulic diffusivity in distroferric Red Latosol under different conditions of agricultural and livestock use. The different conditions of agricultural use and soil livestock are as follows: Cultivation of sugarcane, Annual crops, Crop‑Livestock‑Forest Integration Systems and Permanent Cerrado. Water infiltration in the soil was determined "in situ" by the method of cylinder infiltrometers and empirically through models Kostiakov, Kostiakov-Lewis and Horton. By means of infiltration of water in the soil, the hydraulic conductivity of the saturated soil and the hydraulic diffusivity of the soil were determined. In the evaluation, the following statistical indices were also used: Residual mass coefficient, adjustment coefficient and efficiency. Most hydraulic conductivity, hydraulic diffusivity and infiltration occurred in the then Cerrado area in descending order by the Sugarcane area, the Crop‑livestock‑forest integration systems and annual crops.