Now showing items 76-95 of 410

    • Dirt: The Erosion of Civilizations 

      Montgomery, David (University of Washington Water Center, 2008-02-14)
      Montgomery will review the importance of soil in sustaining civilizations. He will ask the question: can soil erosion limit the lifespan of civilizations? He will discuss contemporary and long-term (geological) erosion ...
    • Discrepancies in Forest Products Trade Statistics 

      Eastin, Ivan; Perez-Garcia, John (10/1/2004)
      This report describes the extent to which discrepancies in trade statistics occur within the forest products sector and identify those areas where unusually large trade statistics discrepancies appear to exist. It also ...
    • Distribution Systems for Value-added Wood Products in China 

      Cao, Jeff; Braden, Rose; Eastin, Ivan (5/1/2006)
      In recent years, China has become a vital market for many US wood exporters. Now the fourth largest export destination for US wood products, exports from the US to China have increased an average of 30 percent per year ...
    • Down Under: Hyporheic Zones and Their Function 

      Reidy, Catherine Ann; Clinton, Sandra Mae (University of Washington Water Center, 2004-01)
      This fact sheet describes hyporheic zones: their fundamental characteristics, their functions, and management implications. Further readings are also suggested.
    • Drug Resistance in Environments Associated with Aquaculture 

      Roberts, Marilyn (University of Washington Water Center, 2007-01-30)
      Roberts will present an introduction to the problem of bacteria in aquaculture and fish farming. She will focus on aquaculture associated bacteria and bacterial movement in the surrounding environment. She will discuss ...
    • Ecological Issues in Floodplains and Riparian Corridors 

      Bolton, Susan; Schellberg, Jeff (University of Washington Water Center, 2001-07-11)
      As part of the process outlined in Washington's "Statewide Strategy to Recover Salmon: Extinction is Not an Option" the Washington Departments of Fish and Wildlife, Ecology, and Transportation were charged to develop Aquatic ...
    • Economic Contribution of the Forestry and Wood Processing Sectors in the State of Washington 

      Eastin, Ivan; Ganguly, Indroneil; Sasatani, Daisuke; Lippke, Bruce (10/1/2009)
      Investment by value-adding wood industries is critical to sustaining forestland ownership. An increasingly complex array of forest owners and investors suggests a business climate that views forests as a financial, rather ...
    • Economically Sustainable Working Forests: 

      Zobrist, Kevin (2005-10-24)
      Economic viability is an important part of the sustainability of working forests. With landowners facing increasing regulatory complexity, increasing demand for a diversity of forest outputs, and economic pressures to ...
    • Economics and Salmon Habitat Conservation: Welcome to the Data-Poor Real World 

      Plummer, Mark (University of Washington Water Center, 2006-10-24)
      Benefit-cost analysis is as natural to economists as breathing—which sometimes gets us into trouble when we try to ply our trade in a data vacuum. In the data-poor real world, the practice of benefit-cost analysis often ...
    • Ecosystem Services Markets 

      Robbins, Alicia (2005-10-27)
      The term “ecosystem services” refers to indirect ecosystem functions such as water purification, flood control, carbon sequestration, climate regulation, and soil and nutrient cycling, as well as recreation or ...
    • The Ecotoxicology of Mine Waste Contamination at Different Levels of Biological Organization in the Methow River Vally, Okanogan County, Washington 

      Peplow, Dan; Edmonds, Robert (Center for Water and Watershed Studies, 2003-05-15)
      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, ...
    • Effect of Forest Harvesting and Riparian Buffers on Headwater Stream Temperatures 

      Edmonds, Robert (University of Washington Water Center, 2010-02-17)
      Headwater streams are small in size, but can be 80% of stream length. They have a high density in steep terrain and have a high biodiversity of invertebrates, amphibians and fish. However, they are very sensitive to landscape ...
    • The Effect of LiDAR Digital Elevation Model Resolution on Stream Network Prediction and Computational Requirements 

      Mouton, Adam (University of Washington Water Center, 2006-02-16)
      Mouton will describe his research into stream prediction. In his study, he examined the effects of digital elevation model (DEM) grid size for stream network predictions in the northwestern United States to test the accuracy ...
    • Effectiveness of large woody debris in stream rehabilitation projects in urban basins 

      Larson, Marit; Booth, D.B. (Center for Urban Water Resources Management, University of Washington, 2000-03)
      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 ...
    • Effects of Development on Coho Salmon and Implications for Stream Habitat Restoration 

      Bilby, Robert (University of Washington Water Center, 2009-03-31)
      Examination of a 20-year record of spawning coho salmon abundance from more than 80 streams in central Puget Sound indicated that even modest levels of development within a watershed were associated with reductions is ...
    • Effects of Turbidity and Suspended Solids on Salmonids 

      Bash, Jeff; Berman, Cara H.; Bolton, Susan (University of Washington Water Center, 2001-11)
      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 ...
    • Efficacy and Potential for Non-Target Effects of Larvicides for West Nile Virus Control in Seatttle Catch Basin 

      Sternberg, Morgan; Conquest, Loveday (University of Washington Water Center, 2009-02-18)
      In anticipation of the spread of West Nile Virus, Seattle officials promoted a city-wide research effort over the summers of 2006 and 2007 designed to investigate the efficacy and fate of four common larvicides: Mosquito ...
    • Efficacy and Safety of Reclaimed Water 

      Brown, Sally (University of Washington Water Center, 2010-02-17)
      Brown will present a plan to develop a reclaimed water program in King County. She will discuss average water use and precipitation statistics. Next, she will consider the wildlife impacts of conventional discharges. To ...
    • Elwha and Glines Canyon Dam Removals: Nearshore Restoration of the Central Strait of Juan de Fuca 

      Shaffer, Anne (University of Washington Water Center, 2006-04-25)
      Shaffer will provide an overview of the Elwha watershed. She will describe the impact of the Elwha and Glines Canyon dams on the Elwha nearshore area, in the Strait of Juan de Fuca. Finally, she will review several projects ...
    • Embracing Disturbance: a New Paradigm for the Precautionary Principle in Riparian Zones 

      Agee, James (University of Washington Water Center, 2005-02-17)
      Agee will question the precautionary principle, which works well in some situations, but may lead to negative results. As an example, he will discuss fire regimes in riparian zones. He will argue that in dynamic systems, ...