National Wildlife Refuge System Improvement Act of 1997
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Publisher:
Published: 1999
Total Pages: 2
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
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Publisher:
Published: 1999
Total Pages: 2
ISBN-13:
DOWNLOAD EBOOKAuthor: National Research Council
Publisher: National Academies Press
Published: 2002-10-10
Total Pages: 449
ISBN-13: 0309082951
DOWNLOAD EBOOKThe 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.
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Published: 1993
Total Pages: 342
ISBN-13:
DOWNLOAD EBOOKAuthor: Mark V. Stalmaster
Publisher: Universe Publishing(NY)
Published: 1987
Total Pages: 256
ISBN-13:
DOWNLOAD EBOOKA thorough study of the bald eagle with information on evolution, classification, breeding and nesting, feeding and foraging, reproduction and survival.
Author: David W. Prasifka
Publisher:
Published: 1994-01-01
Total Pages: 266
ISBN-13: 9780894648380
DOWNLOAD EBOOKAs a source of reference material for the practising water engineer or water manager, this book outlines a strategy for projecting water consumption for specific types of land use and selecting a water conservation programme to maximise the beneficial use of a limited natural resource - a situation that typifies new development nationally and worldwide.
Author: Mary D. Davis
Publisher:
Published: 1993
Total Pages: 158
ISBN-13:
DOWNLOAD EBOOKAuthor: Charles Fergus
Publisher: Stackpole Books
Published: 2000-08-01
Total Pages: 452
ISBN-13: 081174406X
DOWNLOAD EBOOKNatural history narratives for more than 300 species of mammals, birds, reptiles, and amphibians found in Pennsylvania and throughout the northeastern United States-written in an engaging, straightforward style.
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Publisher: Government Printing Office
Published: 2006
Total Pages: 228
ISBN-13:
DOWNLOAD EBOOK"The objective of this report is to identify and establish a roadmap on how to do that, and lay the groundwork for transforming how this Nation- from every level of government to the private sector to individual citizens and communities - pursues a real and lasting vision of preparedness. To get there will require significant change to the status quo, to include adjustments to policy, structure, and mindset"--P. 2.
Author: G. Dennis Cooke
Publisher: Elsevier
Published: 2013-10-22
Total Pages: 401
ISBN-13: 1483163253
DOWNLOAD EBOOKLake and Reservoir Restoration deals with the eutrophication process and the methods to protect, restore, and manage lakes and reservoirs. The most common in-lake techniques or procedures, plus nutrient diversion, are reviewed with regard to their scientific basis, methods of application, known effectiveness, feasibility, drawbacks, and costs. Areas for further research and development are also highlighted. This book is comprised of 16 chapters organized into four sections. After an introduction to the theory of the problem and the restoration technique, the discussion turns to the various restoration methods such as those used for physical and chemical control of nutrients. Diversion and advanced waste treatment, hypolimnetic withdrawal, and dilution and flushing are considered along with phosphorus precipitation and inactivation, sediment oxidation, sediment removal, and hypolimnetic aeration. Case studies and success stories are presented and the costs and potential negative impacts of the methods are examined. The following chapters focus on methods to control plant biomass, including artificial circulation, water-level drawdown, harvesting, biological control, and surface and sediment covers. A chapter on liming acidified lakes concludes this text. This monograph will be useful to professional limnologists and engineers, on-site lake or reservoir managers, and those who are interested in learning about the problems and management of lakes and reservoirs.
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Publisher: Office of Technology Assessment
Published: 1995
Total Pages: 180
ISBN-13:
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