Wetlands


Book Description

"Wetlands" has become a hot word in the current environmental debate. But what does it signify? In 1991, proposed changes in the legal definities of wetlands stirred controversy and focused attention on the scientific and economic aspects of their management. This volume explores how to define wetlands. The committee--whose members were drawn from academia, government, business, and the environmental community--builds a rational, scientific basis for delineating wetlands in the landscape and offers recommendations for further action. Wetlands also discusses the diverse hydrological and ecological functions of wetlands, and makes recommendations concerning so-called controversial areas such as permafrost wetlands, riparian ecosystems, irregularly flooded sites, and agricultural wetlands. It presents criteria for identifying wetlands and explores the problems of applying those criteria when there are seasonal changes in water levels. This comprehensive and practical volume will be of interest to environmental scientists and advocates, hydrologists, policymakers, regulators, faculty, researchers, and students of environmental studies.










Wetlands Delineation Manual


Book Description

The EPA issued a notice on January 19, 1993, declaring that the agency will now use this 1987 Corps of Engineers manual to identify wetlands. The manual presents approaches and methods for identifying and delineating wetlands for the purposes of Section 404 of the Clean Water Act. It describes methods for applying a multiparameter approach.Separate sections are devoted to preliminary data gathering and analysis, method selection, routing determinations, atypical situations, and problem areas.Four appendices provide a glossary of wetland terminology, example data forms, and useful information on vegetation and hydric soils.