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Wetlands: Characteristics and Boundaries
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About Wetlands: Characteristics And Boundaries
"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. Table of ContentsFRONT MATTEREXECUTIVE SUMMARY1 INTRODUCTION AND BACKGROUND2 ECOLOGY OF WETLAND ECOSYSTEMS3 WETLAND DEFINITIONS: HISTORY AND SCIENTIFIC BASIS4 WETLAND DELINEATION: PAST AND CURRENT PRACTICE5 WETLAND CHARACTERIZATION: WATER, SUBSTRATE, AND BIOTA6 ESPECIALLY CONTROVERSIAL WETLANDS7 REGIONALIZATION8 MAPS, IMAGES, AND MODELING IN THE ASSESSMENT OF WETLANDS9 REGULATION OF WETLANDS: ADMINISTRATIVE ISSUES10 FUNCTIONAL ASSESSMENT OF WETLANDSREFERENCESAPPENDIXESINDEXLIST OF PUBLICATIONS
