主题词：Soil Carbon and Nitrogen Dynamics; Soil erosion and sediment transport; Heavy metals in environment; Soil and Land Suitability Analysis; Soil Geostatistics and Mapping; Soil and Water Nutrient Dynamics; Soil and Unsaturated Flow; Hydrology and Watershed Management Studies; Soil Management and Crop Yield; Clay minerals and soil interactions; Plant Micronutrient Interactions and Effects; Agricultural Science and Fertilization; Geochemistry and Geologic Mapping; Rangeland Management and Livestock Ecology; Phosphorus and nutrient management; Composting and Vermicomposting Techniques; Agronomic Practices and Intercropping Systems; Groundwater and Watershed Analysis; Peatlands and Wetlands Ecology; Crop Yield and Soil Fertility; Banana Cultivation and Research; Radioactivity and Radon Measurements; Legume Nitrogen Fixing Symbiosis; Coal and Its By-products; Irrigation Practices and Water Management