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Author : Anonim
Publisher : Unknown
Page : 524 pages
File Size : 50,5 Mb
Release : 1999
Category : Electronic
ISBN : NWU:35556031008758
Author : Anonim
Publisher : Unknown
Page : 836 pages
File Size : 55,8 Mb
Release : 1997-07-07
Category : Administrative law
ISBN : UIUC:30112059141678
Author : Anonim
Publisher : Unknown
Page : 170 pages
File Size : 49,9 Mb
Release : 1999
Category : Administrative law
ISBN : PURD:32754062519552
Author : Anonim
Publisher : Unknown
Page : 714 pages
File Size : 54,9 Mb
Release : 2000
Category : Environmental impact statements
ISBN : CORNELL:31924090174909
Author : Permanent International Association of Navigation Congresses
Publisher : PIANC
Page : 111 pages
File Size : 55,7 Mb
Release : 1997
Category : Approach channels (Hydraulic engineering)
ISBN : 9782872230877
Author : Thomas A. Edsall
Publisher : Unknown
Page : 0 pages
File Size : 51,5 Mb
Release : 1996
Category : Ecosystem management
ISBN : OCLC:1016461239
"In October 1994, the governments of the United States and Canada convened the first State of the Lakes Ecosystem Conference (SOLEC '94). The conference was designed to further the purpose of the Great Lakes Water Quality Agreement between the United States and Canada, which aims to restore and maintain the chemical, physical, and biological integrity of the waters of the Great Lakes basin ecosystem. Background papers prepared for the conference and discussions that occurred at SOLEC '94 are summarized in a document prepared by the U.S. and Canadian governments titled "State of the Great Lakes 1995" (EC and EPA 1995). A second, follow-up conference (SOLEC '96) scheduled for fall 1996 is designed to focus more intensively on the status of the Great Lakes coastal ecosystem, which includes the coastal shorelands, coastal wetlands, and coastal or nearshore waters. A major objective of SOLEC '96 is to examine the effects of human activity--and particularly land use practices--on the coastal ecosystem. The present paper is designed to provide background information that will facilitate discussion of the status of the nearshore waters element of Great Lakes coastal ecosystems"--Introd., p. 5.
Author : Anonim
Publisher : Unknown
Page : 44 pages
File Size : 44,6 Mb
Release : 1992
Category : Building
ISBN : UCBK:C101155103
Author : John R. Vallentyne
Publisher : Unknown
Page : 200 pages
File Size : 43,5 Mb
Release : 1974
Category : Algae
ISBN : UOM:39015001565178
This book gives information about lakes and explains how they are affected by nutrients derived from human activities.
Author : United States. Army. Corps of Engineers
Publisher : Unknown
Page : 100 pages
File Size : 55,8 Mb
Release : 1983
Category : Dredges
ISBN : UCR:31210025034982
Author : National Research Council,Division on Earth and Life Studies,Commission on Life Sciences,Committee on the Biological Effects of Ionizing Radiations
Publisher : National Academies Press
Page : 623 pages
File Size : 47,8 Mb
Release : 1988-02-01
Category : Science
ISBN : 9780309037891
This book describes hazards from radon progeny and other alpha-emitters that humans may inhale or ingest from their environment. In their analysis, the authors summarize in one document clinical and epidemiological evidence, the results of animal studies, research on alpha-particle damage at the cellular level, metabolic pathways for internal alpha-emitters, dosimetry and microdosimetry of radionuclides deposited in specific tissues, and the chemical toxicity of some low-specific-activity alpha-emitters. Techniques for estimating the risks to humans posed by radon and other internally deposited alpha-emitters are offered, along with a discussion of formulas, models, methods, and the level of uncertainty inherent in the risk estimates.
Author : Luciana S. Esteves
Publisher : Springer
Page : 139 pages
File Size : 46,6 Mb
Release : 2014-07-14
Category : Science
ISBN : 9789401790291
Managed realignment has been a preferred coastal management strategy in England in the 21st century and has also been increasingly implemented elsewhere. Climate change and environmental and financial concerns have led to a shift from the traditional ‘hold-the-line’ approach of coastal protection towards more flexible soft engineering options. Managed realignment is a relatively new soft engineering alternative aiming to provide sustainable flood risk management with added environmental and socio-economic benefits by creating space for coastal habitats to develop more dynamically. The natural adaptive capacity of coastal habitats and the ecosystem services they provide underpin the sustainability of managed realignment. However, many definitions of managed realignment exist and the understanding of what the term actually represents in practice has evolved through time and varies regionally. This book clarifies the definitions and terminology used in the literature and proposes that managed realignment is used as a general term that encompasses the many different methods of implementation worldwide, including: removal, breach and realignment of defences; controlled tidal restoration (which includes regulated tidal exchange and controlled reduced tide); and managed retreat. These methods of implementation are explained and illustrated with examples from around the world. In addition to a general overview of emerging policies and current practices, specific chapters discuss approaches adopted in different locations, including the Netherlands, the UK and Maui (USA). The UK experience is presented from the perspectives of three sectors: the National Trust (a charity organisation that owns 10% of the coastline of England and Wales), the Environment Agency (the organisation responsible for implementing government policy concerning flood and erosion risk) and a private consultant involved in the planning, design and delivery of managed realignment projects. Taking a wider perspective to consider the range of implementation methods, the viability of managed realignment as a long-term coastal management strategy is discussed. Recent national and regional strategies worldwide give managed realignment an increasing role in climate change and flood risk management. Gaining stakeholders and public support is fundamental for the success of emerging coastal management strategies. However, public perception and stakeholders engagement are often cited as a factor limiting the wider uptake of managed realignment. Results from a recent survey are used to benchmark the current thinking about the potential, the performance and the limitations of managed realignment in the UK and elsewhere. Current opinions about managed realignment are often not clearly defined, partly due to many projects being relatively recent. There is a general perception of great potential to provide sustainable flood risk management with added environmental benefits. However, the views of stakeholders are considerably more negative and notably contrast with the views of practitioners and researchers. The only clear and dominant agreement across all groups of respondents is that better understanding about the long-term evolution of sites is needed.
Author : Jennifer Hubbard,David Wildish,Robert Stephenson
Publisher : University of Toronto Press
Page : 486 pages
File Size : 47,7 Mb
Release : 2016-01-01
Category : History
ISBN : 9781442648586
A Century of Maritime Science reviews the fisheries, environmental, oceanographic, and aquaculture research conducted over the last hundred years at St. Andrews from the perspective of the participating scientists.
Author : G. Dennis Cooke,Eugene B. Welch,Spencer A. Peterson
Publisher : Elsevier
Page : 401 pages
File Size : 52,6 Mb
Release : 2013-10-22
Category : Technology & Engineering
ISBN : 9781483163253
Lake 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.
Author : Joachim Toby Tourbier,Richard Westmacott
Publisher : Unknown
Page : 372 pages
File Size : 54,8 Mb
Release : 1980
Category : Flood control
ISBN : UCR:31210026474914
Author : Joseph R. Geraci,Valerie J. Lounsbury
Publisher : National Aquarium in Baltimore
Page : 386 pages
File Size : 50,6 Mb
Release : 2005
Category : Marine mammals
ISBN : 9780977460908
Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.