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Introduction Water Spectrum Forest Spectrum Issues and Perspectives Functions of Water Biological Functions Chemical Functions Physical Functions Socioeconomic Functions Mechanical Functions Political Functions Military Functions Science of Water Water in History Hydrosciences Properties of Water Physical Properties Hydraulic Properties Chemical Properties Biological Properties Water Distribution Globe United States Hydrologic Cycle Water Resource Problems Water Demand and Supply Water Quantity Water Quality Water Rights Characteristic Forests A Natural Resource Environmental Functions Functional Forests Threats to Forests Forests and Climate Change Forests and Precipitation Precipitation Processes Forest Interception Snow Accumulation and Snowmelt Do Forests Increase Precipitation? Forests and Vaporization Vaporization Processes Sources of Energy Evapotranspiration Forested versus Nonforested Forests and Streamflow Quantity Runoff Generation Watershed Discharges Deforestation Forest Fires Afforestation Forests and Streamflow Quality Water Pollutants Sources of Water Pollution Water Quality Determination Forest Practices Forests and Stream Sediment Soil Erosion Processes Watershed Gross Erosion Estimation of Sediment Yield Vegetation Effects Trends in Sediment Loads of the World’s Rivers Forests and Stream Habitat Stream Habitat Forest Impacts Forest Fires Forests and Flooding Folklore and Fallacies Flood Occurrences Flood Measures Forest Impacts Watershed Management Planning and Implementation Watershed Programs/Projects Watershed Inventory Watershed Analysis Watershed Management Strategies Watershed Management Plans Watershed Assessment Research in Forest Hydrology Research Issues Principles of Field Studies Research Methods The Wagon Wheel Gap Study

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