排水有助于改善路况,降低公共健康风险,实现农作物高产稳产,减少地表径流侵蚀,增加土地价值。农业排水包括人工地下排水和地表排水。农业排水系统正逐渐成为污染物的输送管道,特别是营养物污染。探讨了排水水质保护措施,包括排水系统设计、控制排水、植被缓冲过滤带、侧进控制、反应墙和农业管理等。 Drainage helps to improve road conditions, reduce public health risks, achieve high and stable crop yields, reduce surface erosion and increase land value. Agricultural drainage includes artificial underground drainage and surface drainage. Agricultural drainage systems are gradually becoming the conduit for pollutants, especially nutrient contamination. Discusses drainage water quality protection measures, including drainage system design, control drainage, vegetation buffer filter belt, side entry control, reaction wall and agricultural management.