Book Description
"National Water-Quality Assessment Project."
Author : Mark D. Munn
Publisher : United States Department of the Interior
Page : 92 pages
File Size : 33,50 MB
Release : 2018
Category : Nature
ISBN : 9781411341838
"National Water-Quality Assessment Project."
Author :
Publisher :
Page : 496 pages
File Size : 45,75 MB
Release : 1993
Category : Dissertations, Academic
ISBN :
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Author :
Publisher :
Page : 258 pages
File Size : 46,2 MB
Release : 2000
Category : Eutrophication
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 449 pages
File Size : 46,5 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.
Author : National Research Council
Publisher : National Academies Press
Page : 580 pages
File Size : 42,77 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.
Author : National Research Council
Publisher : National Academies Press
Page : 611 pages
File Size : 30,69 MB
Release : 2009-03-17
Category : Nature
ISBN : 0309125391
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Author : Food and Agriculture Organization of the United Nations
Publisher : Routledge
Page : 332 pages
File Size : 19,70 MB
Release : 2013-06-17
Category : Law
ISBN : 1136498877
The State of the World's Land and Water Resources for Food and Agriculture is FAO's first flagship publication on the global status of land and water resources. It is an 'advocacy' report, to be published every three to five years, and targeted at senior level decision makers in agriculture as well as in other sectors. SOLAW is aimed at sensitizing its target audience on the status of land resources at global and regional levels and FAO's viewpoint on appropriate recommendations for policy formulation. SOLAW focuses on these key dimensions of analysis: (i) quantity, quality of land and water resources, (ii) the rate of use and sustainable management of these resources in the context of relevant socio-economic driving factors and concerns, including food security and poverty, and climate change. This is the first time that a global, baseline status report on land and water resources has been made. It is based on several global spatial databases (e.g. land suitability for agriculture, land use and management, land and water degradation and depletion) for which FAO is the world-recognized data source. Topical and emerging issues on land and water are dealt with in an integrated rather than sectoral manner. The implications of the status and trends are used to advocate remedial interventions which are tailored to major farming systems within different geographic regions.
Author :
Publisher :
Page : 2372 pages
File Size : 27,51 MB
Release : 1996
Category : Agriculture
ISBN :
Author : Henning Steinfeld
Publisher : Food & Agriculture Org.
Page : 418 pages
File Size : 17,57 MB
Release : 2006
Category : Business & Economics
ISBN : 9789251055717
"The assessment builds on the work of the Livestock, Environment and Development (LEAD) Initiative"--Pref.
Author :
Publisher :
Page : 58 pages
File Size : 28,75 MB
Release : 1998
Category : Nitrogen
ISBN :