Hydrology Soil Erosion and Sedimentation Nitrogen and Water Quality Phosphorus and Water Quality Impacts Pesticides and Water Quality Impacts Nonpoint Source Pollution and Livestock Manure Management Irrigated Agriculture and Water Quality Impacts Agricultural Drainage and Water Quality Water Quality Models Best Management Practices for Nonpoint Source Pollution Control Monitoring
Douglas A. HaithJohn V. Dougherty
Xiao Hui ZhangQi CaoGuo Li Xie