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ResearchWorks at the University of Washington

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Soil degradation and water pollution are widely recognized as major environmental problems. Less widely recognized is that soil and water are interconnected. Soils for Salmon is a project promoting the conservation of native soils and improvement...
2010-12-22
2010-12-22
1999-09-01
This research report is an initial assessment of current vegetation maintenance practices in bioswales, wetponds, and roadside ditches. Through the use of interview surveys and a literature review, this report has compiled empirical evidence to...
2010-12-22
2010-12-22
1999-01-01
Governmental mandates and public awareness have forced progressively smaller and less sophisticated agencies and organizations to initiate stream monitoring programs, particularly in urban and urbanizing areas. Yet many of these monitoring...
2010-12-22
2010-12-22
1999-01-01
In 1998 the Washington State Legislature enacted the Watershed Planning Act, which encourages local governments to develop watershed plans using collaborative processes. Objectives of the statute are to address water resource and water quality...
2010-12-30
2010-12-30
2005-07-01
A study of mine-waste contamination effects on Methow River habitat on the eastern slopes of the north Cascade Mountains in Washington state, U.S.A., revealed impacts at ecosystem, community, population, individual, tissue, and cellular levels....
2010-12-30
2010-12-30
2003-05-15
The replacement of forestland with impervious surfaces during urbanization can have significant effects on watershed hydrology and the quality of stormwater runoff. One component of water quality, total suspended solids (TSS), is both a...
2010-12-30
2010-12-30
1999-10-01
The Issaquah Creek basin is an urbanizing watershed of 144 square km in western Washington, where sediment aggradation of the main channel and delivery of fine sediment into a large downstream lake have raised serious local and regional concerns....
2010-12-30
2010-12-30
2001-01-01
In-stream rehabilitation projects are commonly built in response to problems that result from both local sources and diffuse watershed degradation. Local problems, such as an improperly sized culvert, are relatively easily identified and...
2011-03-17
2011-03-17
2000-03-01
Since the early 1980’s biological monitoring has developed as a reliable tool for the assessment of stream and watershed health in an ecological context broader than traditional chemical and habitat assessment. In late May of 1991,...
2011-03-18
2011-03-18
1999-04-21
There are many raisons-d’ètre for cottonwood, and members of Populus in general: foundation species of riparian ecosystems; production trees in high-yield plantations for fiber, lumber, and energy; clean-up trees in remediation of polluted...
2011-03-18
2011-03-18
2010-03-30
Human activities in Northwestern watersheds, including logging, grazing, agriculture, mining, road building, urbanization, and commercial construction contribute to periodic pulses or chronic levels of suspended sediment in streams. Suspended...
2011-03-18
2011-03-18
2001-11-01
Professor Nancy Rottle will discuss the need for taking a comprehensive, integrated approach to water in the urban environment, incorporating considerations for water resource infrastructure, aquatic habitat and city amenities. She will show...
2011-03-18
2011-03-18
2010-04-06
Janne Kaje will provide a brief introduction to the three-week series on salmon recovery planning, policy, science and implementation. The setting for the series is the Snoqualmie Watershed in eastern King County, where salmon recovery, the future...
2011-03-21
2011-03-21
2010-04-13
Brent Lackey will “tour” the project just completed at the mouth of the Tolt River, and highlight a number of issues and lessons learned along the seven year path to completing this 50 acre restoration effort. He will focus on both the important...
2011-03-22
2011-03-22
2010-04-20
Dan Eastman will use a project at the Chinook Bend Natural Area on the Snoqualmie River to demonstrate what it takes to design, permit, and implement a large-scale restoration project in the complex regulatory and social environment of King...
2011-03-22
2011-03-22
2010-04-27
There is recognition in the Life Cycle Assessment (LCA) research community that the consideration of large changes in energy and materials markets caused by wide-scale production of biofuels can cause important changes in environmental impact. As...
2011-03-23
2011-03-23
2010-05-04
King County is building the Brightwater project, which includes one of the largest membrane bioreactor (MBR) wastewater treatment plants in the world. MBR provides a higher level of treatment than standard secondary treatment, resulting in...
2011-03-23
2011-03-23
2010-05-11
Significant physical differences between glaciated mountain headwaters and lowland or unglaciated catchments suggest the need for monitoring parameters appropriate to these basins. A conceptual framework based on recent research in the North...
2011-03-23
2011-03-23
2010-05-18
A half century of desert irrigation has caused the Aral Sea to shrink by 90 percent. Restoration of the sea is impossible and rehabilitation is blocked by political feuds. Meanwhile, disease incidence is rising and livelihoods are being lost. Come...
2011-03-23
2011-03-23
2010-05-25
Interest in the use of green roofs for stormwater flow control (among other benefits) has increased both internationally and locally. Taylor Associates has been conducting hydrologic monitoring of runoff from a number of green roofs for Seattle...
2011-03-23
2011-03-23
2010-06-01
The impact of surfaces on the contiguous aqueous phase is generally thought to extend no more than a few water-molecule layers. We find, however, that colloidal and molecular solutes are profoundly excluded from the vicinity of hydrophilic...
2011-03-23
2011-03-23
2010-01-05
Geomorphic, stratigraphic, geotechnical, and biogeographic evidence indicate that failure of a Pleistocene ice dam generated a megaflood from glacial Lake Atna down the Matanuska Valley in south-central Alaska. While it has long been recognized...
2011-03-23
2011-03-23
2010-01-12
In 2005, Cascade Land Conservancy developed The Cascade Agenda, a bold, long-term vision for conservation and smart growth in the Puget Sound region that brings together business, civic and government leaders to accomplish two big goals: 1. Our...
2011-03-23
2011-03-23
2010-01-19
Keys to getting the masses to be fish and water-friendly: 1. Be clear about your real goal - Bennett’s Hierarchy. 2. You don’t need to reach EVERY person – Roger’s Diffusion of Innovation. 3. Remember that humans change one step at a time -...
2011-03-23
2011-03-23
2010-01-26
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