Terraced Pasture for Disposal of Dairy Yard Runoff

摘要

An alternative system of handling and disposing of milking barn wastewater and feedlot runoff water was evaluated for three years. This system was established on a 50-cow dairy farm in South Carolina and consisted of utilizing a pasture areas downslope from a dairy to infiltrate and filter the liquid, nutrients and solids from the milking barn and the dairy feedlot runoff water. The pasture was modified by the addition of a spreader terrace and three level terraces to distribute the runoff water. Wastewater discharged from the milking barn typically infiltrated the soil before reaching the terrace system. Several of the small rainstorms produced runoff from the dairy feedlot which was completely infiltrated by the terraced pasture. The concentration of the runoff water leaving the dairy feedlot was reduced by the time it left the terraced pasture.