Modeling of the monthly distribution of soil erosion and sediment yield in the Tucutunemo Basin, Venezuela

This research deals with the modeling of the monthly distribution of soil erosion and sediment yield in the Tucutunemo basin for the year 2015. The remote sensing technics on Landsat satellite images and ASTER global digital elevation model of a spatial resolution of 30 meters are adapted to use USLE (Universal Soil Loss Equation) and Langebein-Schumm models to estimate the erosion. The monthly precipitation is estimated using the statistical spatial prediction models based on the Ordinary Krigging using the records of 23 precipitation gauges. The J-Bessel model is the best adjustment to the precipitation of 30 minutes. It has been found that the soil erosion and yield sediment occur in the high and middle part of the basin. According the location, the precipitation of 30 minutes occurs in a magnitude from high moderately to high during the rainy season. The applied method contributes to detect the specific areas of sediment accumulation into the basin