Watersheds : processes, assessment, and management / Paul A. DeBarry.

Includes bibliographical references and index.

Table Of Contents: Preface Acknowledgments Introduction: Comprehensive Watershed Assessment and Management Introduction Sustainability Watershed Assessment and Management Comprehensive Watershed Management Concepts Political versus Natural Resource Management Summary PART A: WATERSHED PROCESSES Physiography Introduction Physiography and Physiographic Provinces Geology Soils Topography Summary Climate, Precipitation, Hydrologic Cycle Introduction Climate Classification Precipitation Hydrologic Cycle, Water Balance, and Water Budget Anthropogenic (Man-made) Changes to the Water Balance Low Flow Summary Hydrogeology Introduction Groundwater Flow through Porous Media Fluid Movement in Unsaturated Media Fluid Movement in Saturated Media Flow Through Secondary Openings in Dense Materials Nitrogen Pollution Summary Hydrogeomorphology (Watershed and Stream Morphology) Introduction Hydrogeomorphology Watershed Classifications Stream Classifications Watershed Hydrology Summary Lakes, Reservoirs, Streams, and Wetlands Introduction Lentic Water (Ponds, Lakes, Reservoirs) The Great Dam Debate Lotic Water (Streams and Rivers) Physical Properties of Receiving Waters Wetlands Summary Ecology/Habitat Introduction Ecosystems Biodiversity Stressors Bioindicators Fisheries Threatened and Endangered Species Summary Water Quality: Nonpoint Source Pollution Introduction Water Quality Chemical Properties of Precipitation Chemical Properties of Receiving Waters Point versus Nonpoint Source Pollution Nonpoint Source (NPS) Pollutants Buildup and Washoff in Urban Areas Runoff Pollutant Sources Summary PART B: WATERSHED ASSESSMENT Watershed Assessment: Data Collection Introduction Project Initiation Establish the Watershed Assessment Team Involve Citizenry Select a Consultant Implement Quality Assurance/Quality Control (QA/QC) Identify General Problems in the Watershed Develop Goals and Objectives Obtain Grant(s) Hold Public Meetings and Conduct Surveys Collect Data Check Local Ordinances Assimilate Data Proceed with Analysis: Assessment and Modeling Write the Plan Report Summary Geographic Information Systems Introduction Use of GIS for Watershed Assessment Units, Scale, and Accuracy Coordinate Systems, Datums, and Projections GIS Data Types Metadata GIS Layers and Data Sources Useful for Watershed Assessment and Analysis Summary Precipitation and Stream Flow Data Introduction Precipitation Measurements Stream Flow Measurements Base Flow Separation Summary Watershed Hydrology and Modeling Introduction Drainage Area Time-of-Concentration and Watershed Lag Runoff Routing Modeling Process Sensitivity Analysis GIS Model Calibration Process Verification Calibrated Model Runs Summary Stream and River Morphologic Assessment Introduction Age Classifications Stream Form (Pattern) Stream Factors Stream Classifications Performing a Fluvial Geomorphological Assessment Summary Ecology: Habitat Classification and Assessment Introduction Longitudinal Changes in Stream Ecosystems Ecosystem Classifications Ecoregions and Watershed Management Rapid Bioassessment Protocol (RBP) Species Diversity Inventory Aquatic Habitat Conducting an Aquatic Survey Aquatic Organism Assessment Summary Nonpoint Source Pollution Load Assessment Introduction Existing Pollutant Loading Data (NURP) Field Data Collection and Monitoring Total Maximum Daily Load (TMDL) Pollutant Loading Equations and Methods Revised Universal Soil Loss Equation (RUSLE) Computer Simulation Models Summary PART C: WATERSHED MANAGEMENT Agency Roles, Programs, Regulations, and Policies Introduction Water Quality Criteria and Standards Regulations State, Regional, and Local Regulations Federal Programs Greenways and Rivers Conservation Plans Land Trusts Summary Systematic Approach to Watershed Assessment: The Digital Watershed, Watershed Analysis, GIS, and Modeling Introduction GIS Applications Compiling the Digital Watershed Data Analysis The GIS Overlaying Procedure GIS in Hydrologic and Hydraulic Analyses GIS and Floodplain Management GIS and Groundwater Management GIS and Water Quality Management District Determination Displaying the Results Summary Stormwater Management on a Watershed Basis: Regional Stormwater Management Introduction Urbanization/Land Development Stormwater Management and Land Development Watershed-Level Stormwater Runoff Control Management Philosophy Conventional On-Site Runoff Control versus Watershed Level Runoff Control Release Rate Percentage Concept Minimum Reasonable Release Rate Determination Variable Stormwater Management Districts Summary On-Site Stormwater Management and Conservation Design Introduction Traditional Procedure for Site Design Stormwater Management Best Management Practices Five-Phase Approach to Stormwater Management Nonstructural BMPs and Stormwater Management The Role of Soils in Low Impact Development Recommended Procedure for Site Design Stormwater Management: The Low Impact Development Design Planning Process Advantages and Benefits of LID Design Future Implementation Structural BMPs Summary Floodplain Management and Riparian Buffers Introduction Federal Emergency Management Agency's Flood Insurance Program Land Development Process in the Floodplain Room for Improvement Floodplain and Riparian Buffer Management Riparian Buffers and Stream Orders Riparian Buffer Assessment Riparian Buffer Management Summary Stream and Lake Management Introduction Streambank Management Using FGM Techniques Lake Management Summary Groundwater and Integrated Water Resources Management Introduction Water Supply Plan Wellhead Protection Study Integrated Water Resources Management Summary Summary Appendix A Selected List of GIS Data and Related Sites Appendix B Acronyms Glossary Index