The document "Classification of Wetlands and Deepwater Habitats of the United States" is a comprehensive guide developed by the U.S. Fish and Wildlife Service to provide a standardized classification system for wetlands and deepwater habitats. The classification system aims to describe ecological taxa, aid resource management, support mapping, and ensure uniformity in concepts and terminology across the United States. The classification is hierarchical, progressing from Systems and Subsystems to Classes, Subclasses, and Dominance Types. It includes five major Systems: Marine, Estuarine, Riverine, Lacustrine, and Palustrine, each with specific definitions, limits, and characteristics. The system also accounts for deepwater habitats, which are permanently flooded lands lying below the deepwater boundary of wetlands. The document provides detailed descriptions of each System, Subsystem, Class, Subclass, and Dominance Type, along with modifiers for water regime, water chemistry, and soils. The classification is intended to facilitate the management and conservation of wetlands and deepwater habitats, addressing their ecological, economic, and social values.The document "Classification of Wetlands and Deepwater Habitats of the United States" is a comprehensive guide developed by the U.S. Fish and Wildlife Service to provide a standardized classification system for wetlands and deepwater habitats. The classification system aims to describe ecological taxa, aid resource management, support mapping, and ensure uniformity in concepts and terminology across the United States. The classification is hierarchical, progressing from Systems and Subsystems to Classes, Subclasses, and Dominance Types. It includes five major Systems: Marine, Estuarine, Riverine, Lacustrine, and Palustrine, each with specific definitions, limits, and characteristics. The system also accounts for deepwater habitats, which are permanently flooded lands lying below the deepwater boundary of wetlands. The document provides detailed descriptions of each System, Subsystem, Class, Subclass, and Dominance Type, along with modifiers for water regime, water chemistry, and soils. The classification is intended to facilitate the management and conservation of wetlands and deepwater habitats, addressing their ecological, economic, and social values.