Sediment Yield, Detachment, and Runoff from Soil Under Selected Parent Materials in Southeastern Nigeria

Soil degradation due to water erosion among other causes has been a major problem in southeastern Nigeria, therefore a study was conducted to determine sediment yield, detachment, and runoff from soil under selected parent material in southeastern Nigeria. The objective was to characterize the selected soils in terms of their physical and chemical parameters, carry out rainfall simulation, and to establish some relationships that exist among studied parameters with selected soil properties. Soil samples were collected in three replicates from twenty locations, 5 location each from 4 geologic formations namely Asu River Group, Bende Ameki Group, Coastal Plain Sand and False bedded Sandstone at a depth of 0 – 20 cm using soil auger. Standard laboratory procedures were followed for samples for routine analyses while the rest was subjected to rainfall simulation at an intensity of 190 mm / hr for a period of 30 minutes under dry and wet conditions of the soils. Result showed that significant P