主题词：Soil erosion and sediment transport; Soil and Water Nutrient Dynamics; Hydrology and Watershed Management Studies; Soil Carbon and Nitrogen Dynamics; Rangeland and Wildlife Management; Hydrology and Sediment Transport Processes; Aeolian processes and effects; Economic and Environmental Valuation; Agricultural Innovations and Practices; Forest Management and Policy; Soil and Unsaturated Flow; Agricultural Economics and Policy; Soil Geostatistics and Mapping; Water Quality and Resources Studies; Irrigation Practices and Water Management; Water resources management and optimization; Crop Yield and Soil Fertility; American Environmental and Regional History; Soil Management and Crop Yield; Bioenergy crop production and management; Plant Water Relations and Carbon Dynamics; Pesticide and Herbicide Environmental Studies; Peatlands and Wetlands Ecology; Environmental Conservation and Management; Agronomic Practices and Intercropping Systems