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Author : Anonim
Publisher : Unknown
Page : 360 pages
File Size : 49,8 Mb
Release : 1997
Category : Biotic communities
ISBN : UCR:31210022663965
Author : Interior Columbia Basin Ecosystem Management Project (U.S.). Science Integration Team,Pacific Northwest Research Station (Portland, Or.)
Publisher : Bear Meadows Research Group
Page : 2066 pages
File Size : 42,5 Mb
Release : 1998-01-01
Category : Nature
ISBN : MINN:31951D02889097T
Author : Anonim
Publisher : Unknown
Page : 352 pages
File Size : 53,9 Mb
Release : 1997
Category : Columbia River Watershed
ISBN : OCLC:62051883
Author : Shabeg S. Sandhu,Brian D. Melzian,Edward R. Long,Walter G. Whitford,Barbara T. Walton
Publisher : Springer Science & Business Media
Page : 447 pages
File Size : 53,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401143431
The monitoring of point sources by the Environmental Protection Agency (EPA), the states, and the tribes has documented and helped reduce the levels of chemical stressors affecting our ecosystems. With the controls on point sources reducing chemical contamination, new environmental challenges associated with nonpoint sources have emerged. To adequately deal with these new problems, EPA's Office of Research and Development recognized the need to develop an overall under standing of the condition of our ecological resources, the trends in their condition, and the stressors affecting these systems on a broad scale. Toward this end, the En vironmental Monitoring and Assessment Program (EMAP) was established by EPA and has been strategically developing the scientific tools and techniques to monitor and assess the status and trends of aquatic ecosystems. EMAP scientists have developed new indicators and probability-based de signs to fill data gaps in the development of regional-scale assessments of our aquatic resources, as required in the Clean Water Act. We have a scientifically de fensible approach that allows: 100 percent coverage of the aquatic resources within broad geographic areas and the formulation of reference 'conditions for es tablishing the health of these resources. The use of these indicators and designs were successfully demonstrated in the landscapes, streams, and estuaries of the mid-Atlantic states as part of the Mid-Atlantic Integrated Assessment (MAlA).
Author : Thomas Milton Quigley,Sylvia J. Arbelbide
Publisher : Bear Meadows Research Group
Page : 732 pages
File Size : 42,8 Mb
Release : 1997
Category : Biotic communities
ISBN : 089904753X
Author : Interior Columbia Basin Ecosystem Management Project (U.S.). Science Integration Team
Publisher : Unknown
Page : 334 pages
File Size : 42,6 Mb
Release : 1996
Category : Biodiversity conservation
ISBN : UCR:31210022663726
"The Integrated Scientific Assessment for Ecosystem Management for the Interior Columbia Basin links landscape, aquatic, terrestrial, social, and economic characterizations to describe biophysical and social systems. Integration was achieved through a framework built around six goals for ecosystem management and three different views of the future. These goals are: maintain evolutionary and ecological processes; manage for multiple ecological domains and evolutionary timeframes; maintain viable populations of native and desired non-native species; encourage social and economic resiliency; manage for places with definable values; and, manage to maintain a variety of ecosystem goods, services, and conditions that society wants. Ratings of relative ecological integrity and socioeconomic resiliency were used to make broad statements about ecosystem conditions in the Basin. Currently in the Basin high integrity and resiliency are found on 16 and 20 percent of the area, respectively. Low integrity and resiliency are found on 60 and 68 percent of the area. Different approaches to management can alter the risks to the assets of people living in the Basin and to the ecosystem itself. Continuation of current management leads to increasing risks while management approaches focusing on reserves or restoration result in trends that mostly stabilize or reduce risks. Even where ecological integrity is projected to improve with the application of active management, population increases and the pressures of expanding demands on resources may cause increasing trends in risk"--page ii.
Author : Anonim
Publisher : Unknown
Page : 352 pages
File Size : 45,5 Mb
Release : 1997
Category : Biotic communities
ISBN : MINN:31951D02889099P
Author : United States. Congress. House. Committee on Resources. Subcommittee on Forests and Forest Health
Publisher : Unknown
Page : 540 pages
File Size : 43,7 Mb
Release : 1998
Category : Law
ISBN : PSU:000032145175
Author : Anonim
Publisher : Unknown
Page : 476 pages
File Size : 43,7 Mb
Release : 2000
Category : Electronic
ISBN : NWU:35556031855786
Author : Anonim
Publisher : Unknown
Page : 70 pages
File Size : 52,9 Mb
Release : 2000
Category : Ecosystem management
ISBN : UIUC:30112050189148
Author : United States. Congress. House. Committee on Resources
Publisher : Unknown
Page : 896 pages
File Size : 53,8 Mb
Release : 1998
Category : Business & Economics
ISBN : 0160572673
Author : Amy L. Horne
Publisher : Unknown
Page : 52 pages
File Size : 42,5 Mb
Release : 1999
Category : Columbia River Watershed
ISBN : MINN:31951D02889042I
Author : Interior Columbia Basin Ecosystem Management Project (U.S.)
Publisher : Unknown
Page : 148 pages
File Size : 54,7 Mb
Release : 1998
Category : Columbia River Region
ISBN : MINN:31951D01753884X
Author : Anonim
Publisher : Unknown
Page : 152 pages
File Size : 54,5 Mb
Release : 1996
Category : Biodiversity conservation
ISBN : UCR:31210022663759
The Status of the Interior Columbia Basin is a summary of the scientific findings from the Interior Columbia Basin Ecosystem Management Project. The Interior Columbia Basin includes some 145 million acres within the northwestern United States. Over 75 million acres of this area are managed by the USDA Forest Service or the USDI Bureau of Land Management. A framework for ecosystem management is described that assumes the broad purpose is to maintain the integrity of ecosystems over time and space. An integrated scientific assessment links landscape, aquatic, terrestrial, social, and economic characterizations to describe the biophysical and social systems. Ecosystem conditions within the Basin have changed substantially within the last 100 years. The status of ecosystems is described in terms of current conditions and trends under three broadly defined management options. The scientific information brought forward will be used in decision-making, and may potentially amend Forest Service and Bureau of Land Management plans within the Basin. The information highlighted here represents an integrated view of biophysical and socioeconomic elements at a scale never before attempted. The risks and opportunities are characterized in the broad context of the Basin for managers and the public to use as a foundation for discussion about future management.
Author : Anonim
Publisher : Unknown
Page : 852 pages
File Size : 52,8 Mb
Release : 1997
Category : Electronic
ISBN : NWU:35556030825624