Willamette River Floodplain Restoration Study

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Willamette River Floodplain Restoration Oregon

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Author : United States. Office of the Assistant Secretary of the Army (Civil Works)
language : en
Publisher:
Release Date : 2014

Willamette River Floodplain Restoration Oregon written by United States. Office of the Assistant Secretary of the Army (Civil Works) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Environmental impact analysis categories.

Review Plan

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Author : United States. Army. Corps of Engineers. Portland District
language : en
Publisher:
Release Date : 2012

Review Plan written by United States. Army. Corps of Engineers. Portland District and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Fishes categories.

Willamette River Oregon Floodplain Restoration Project

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Author :
language : en
Publisher:
Release Date : 2004

Willamette River Oregon Floodplain Restoration Project written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Ecosystem management categories.

Economic Analysis Of Restoration Practices To Improve Water Quality And Fish Habitat Of A Large River Floodplain

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Author : Saichon Seedang
language : en
Publisher:
Release Date : 2004

Economic Analysis Of Restoration Practices To Improve Water Quality And Fish Habitat Of A Large River Floodplain written by Saichon Seedang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Ecosystem management categories.

In- stream water temperature is one of the most important environmental factors associated with the decline in salmonid populations and their habitats in the Pacific Northwest. Most ecological restoration practices that attempt to reduce instream temperatures center on replanting or reestablishing riparian vegetation and increasing flows. However, in a large floodplain river like the Willamette, restoring hyporheic flow may also play an important role in reducing water temperature. The objective of this dissertation is to examine restoration practices that focus on the reduction of water temperatures in the upper mainstem Willamette River, Oregon, for the benefit of salmonid species. Economic information is developed to determine the cost-effectiveness of water temperature reduction strategies. The CEQUAL- W2 water temperature model is used to simulate the effects of upstream combinations of riparian shading and flow increments on downstream water temperatures. Costs associated with these strategies are estimated. These costs consist of the opportunity costs of losing agricultural production, and losing recreation due to flow releases from up-stream reservoirs. The effectiveness of each strategy in reducing water temperature and the associated costs are used to construct a cost-effectiveness frontier. The results indicate that the cumulative effects of shading and flows have little impact on temperature reduction downstream. Even when maximum available resources are allocated to investments in shade and flow increases they cannot lower summer water temperatures sufficiently to meet the state water temperature standard. However, the restoration practices selected from the cost-effectiveness frontiers method do provide ranges of achievable temperature reductions at minimum costs. These results are thus useful management tools when selecting policies to pursue water temperature goals. Hyporheic temperature reduction is also examined. Restoration practices associated with this type of cooling are done through removal/reconnection of the obstacles that are necessary to allow the process of re-creating dynamic channel complexity. The observed significant reduction of summer water temperatures associated with channel complexity indicates that this approach is more flexible in reducing temperature than approaches that rely on flow increments or/and shade. Although the costs associated with the hyporheic approach are substantial, the effects of such a long-term ecological improvement of floodplain habitat may substantially benefit salmonid populations.

Willamette River Floodplain Restoration Study

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Author : United States. Army. Corps of Engineers. Portland District
language : en
Publisher:
Release Date : 1999

Willamette River Floodplain Restoration Study written by United States. Army. Corps of Engineers. Portland District and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Floodplain management categories.

Willamette River Floodplain Restoration Oregon July 10 2014 113 2 H Doc 113 133

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Author : United States. Congress. House
language : en
Publisher:
Release Date : 2014*

Willamette River Floodplain Restoration Oregon July 10 2014 113 2 H Doc 113 133 written by United States. Congress. House and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014* with categories.

An Evaluation Of Flood Management Benefits Through Floodplain Rstoration On The Willamette River Oregon U S A

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Author : Kevin G. Coulton
language : en
Publisher:
Release Date : 1996

An Evaluation Of Flood Management Benefits Through Floodplain Rstoration On The Willamette River Oregon U S A written by Kevin G. Coulton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Flood control categories.

Energy And Water And Related Agencies Appropriations For Fiscal Year

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Author : United States. Congress. Senate. Committee on Appropriations
language : en
Publisher:
Release Date : 2007

Energy And Water And Related Agencies Appropriations For Fiscal Year written by United States. Congress. Senate. Committee on Appropriations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Energy development categories.

Energy And Water And Related Agencies Appropriations For Fiscal Year 2007 Justifications Dept Of The Army Corps Of Engineers

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Author : United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water, and Related Agencies
language : en
Publisher:
Release Date : 2006

Energy And Water And Related Agencies Appropriations For Fiscal Year 2007 Justifications Dept Of The Army Corps Of Engineers written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water, and Related Agencies and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Energy development categories.

Energy And Water Development Appropriations For 2007

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Author : United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development
language : en
Publisher:
Release Date : 2006

Energy And Water Development Appropriations For 2007 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Federal aid to energy development categories.