Pacific Regional Wetlands Functions
Author :
Publisher :
Page : 172 pages
File Size : 11,61 MB
Release : 1985
Category : Wetland ecology
ISBN :
Author :
Publisher :
Page : 172 pages
File Size : 11,61 MB
Release : 1985
Category : Wetland ecology
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 580 pages
File Size : 16,64 MB
Release : 1992-01-01
Category : Technology & Engineering
ISBN : 9780309045346
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
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Page : 110 pages
File Size : 50,11 MB
Release : 1986
Category : Salt marshes
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Author : J. D. Fretwell
Publisher :
Page : 431 pages
File Size : 15,78 MB
Release : 1996
Category : Natural resources
ISBN : 9780607856965
Author : J. Henry Sather
Publisher :
Page : 162 pages
File Size : 23,36 MB
Release : 1990
Category : Water quality
ISBN :
Author :
Publisher :
Page : 598 pages
File Size : 38,8 MB
Release : 1993
Category : Waterfowl management
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Author : Committee on Characterization of Wetlands
Publisher : National Academies Press
Page : 329 pages
File Size : 40,98 MB
Release : 1995-09-20
Category : Science
ISBN : 0309587220
"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.
Author :
Publisher :
Page : 206 pages
File Size : 43,26 MB
Release : 1986
Category : Water quality
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Author : U.S. Fish and Wildlife Service
Publisher :
Page : 110 pages
File Size : 14,56 MB
Release : 1979
Category : Aquatic ecology
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 449 pages
File Size : 18,74 MB
Release : 2002-10-10
Category : Science
ISBN : 0309082951
The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.