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• 21. [Article] Miami River watershed assessment : final report

  The purpose of this watershed assessment is to inventory and characterize watershed conditions of the Miami River watershed and to provide recommendations that address the issues of water quality, fisheries ...

  Citation × Citation Citation Abstract Copy Title: Miami River watershed assessment : final report Author: E&S Environmental Chemistry, Inc., Sullivan, Timothy J., White, Shawn, Snyder, Kai U., Raymond, Richard B., Binder, Susan K., Bischoff, Joseph M. The purpose of this watershed assessment is to inventory and characterize watershed conditions of the Miami River watershed and to provide recommendations that address the issues of water quality, fisheries and fish habitat, and watershed hydrology. This assessment was conducted by reviewing and synthesizing existing data sets and some new data collected by the watershed council, following the guidelines outlined in the Oregon Watershed Enhancement Board (OWEB) watershed assessment manual (WPN 1999). Title: Miami River watershed assessment : final report Author: E&S Environmental Chemistry, Inc., Sullivan, Timothy J., White, Shawn, Snyder, Kai U., Raymond, Richard B., Binder, Susan K., Bischoff, Joseph M. The purpose of this watershed assessment is to inventory and characterize watershed conditions of the Miami River watershed and to provide recommendations that address the issues of water quality, fisheries and fish habitat, and watershed hydrology. This assessment was conducted by reviewing and synthesizing existing data sets and some new data collected by the watershed council, following the guidelines outlined in the Oregon Watershed Enhancement Board (OWEB) watershed assessment manual (WPN 1999). Close

• 22. [Article] NNWC Action Plan

  The purpose of this Management and Action Plan is to help guide the Nestucca-Neskowin Watersheds Council (Council) in accomplishing three main goals: To provide opportunities for watershed-related education ...

  Citation × Citation Citation Abstract Copy Title: NNWC Action Plan Author: Nestucca-Neskowin Watersheds Council The purpose of this Management and Action Plan is to help guide the Nestucca-Neskowin Watersheds Council (Council) in accomplishing three main goals: To provide opportunities for watershed-related education to the people who live, work, and recreate in the watershed To update the Nestucca/Neskowin Watershed Assessment (May 1998). To protect and enhance the health of the watershed based on updates to the Nestucca-Neskowin Watershed Assessment, monitoring and research. Title: NNWC Action Plan Author: Nestucca-Neskowin Watersheds Council The purpose of this Management and Action Plan is to help guide the Nestucca-Neskowin Watersheds Council (Council) in accomplishing three main goals: To provide opportunities for watershed-related education to the people who live, work, and recreate in the watershed To update the Nestucca/Neskowin Watershed Assessment (May 1998). To protect and enhance the health of the watershed based on updates to the Nestucca-Neskowin Watershed Assessment, monitoring and research. Close

• 23. [Article] Incorporation of salmon derived nutrients into Oregon coastal streams and the role of physical habitat

  Citation × Citation Citation Abstract Copy Title: Incorporation of salmon derived nutrients into Oregon coastal streams and the role of physical habitat Author: Shaff, Courtney D. Title: Incorporation of salmon derived nutrients into Oregon coastal streams and the role of physical habitat Author: Shaff, Courtney D. Close

• 24. [Article] Guano and Thousand-Virgin Sub-basins Watershed Assessment

  The Guano and Thousand-Virgin Sub-basins occupy over 1.8 million acres in Harney and Lake Counties in Oregon. The portions of the sub-basins in Nevada are not assessed in this document. Harney County Watershed ...

  Citation × Citation Citation Abstract Copy Title: Guano and Thousand-Virgin Sub-basins Watershed Assessment Author: Harney County Watershed Council The Guano and Thousand-Virgin Sub-basins occupy over 1.8 million acres in Harney and Lake Counties in Oregon. The portions of the sub-basins in Nevada are not assessed in this document. Harney County Watershed Council (HCWC) watershed assessments focus on summarizing data from existing research, resource inventories, and management plans. This assessment emphasizes the geologic history of the Guano and Thousand-Virgin Sub-basins to give report users the benefit of understanding factors, that have shaped the land we now see. Title: Guano and Thousand-Virgin Sub-basins Watershed Assessment Author: Harney County Watershed Council The Guano and Thousand-Virgin Sub-basins occupy over 1.8 million acres in Harney and Lake Counties in Oregon. The portions of the sub-basins in Nevada are not assessed in this document. Harney County Watershed Council (HCWC) watershed assessments focus on summarizing data from existing research, resource inventories, and management plans. This assessment emphasizes the geologic history of the Guano and Thousand-Virgin Sub-basins to give report users the benefit of understanding factors, that have shaped the land we now see. Close

• 25. [Article] Clackamas River watershed atlas

  Metro received grant funding from the U.S. Environmental Protection Agency in 1995 to gather digital, or computerized, geographic data for the Clackamas River watershed. This atlas was produced as one ...

  Citation × Citation Citation Abstract Copy Title: Clackamas River watershed atlas Author: Metro Regional Services Metro received grant funding from the U.S. Environmental Protection Agency in 1995 to gather digital, or computerized, geographic data for the Clackamas River watershed. This atlas was produced as one way to share the information collected with resource managers, policy makers, and people living in and interested in the Clackamas River watershed. The project study area is the entire land area draining into the Clackamas River in northwestern Oregon, referred to as the Clackamas River watershed. The watershed is part of the lower portion of the Willamette River basin. Title: Clackamas River watershed atlas Author: Metro Regional Services Metro received grant funding from the U.S. Environmental Protection Agency in 1995 to gather digital, or computerized, geographic data for the Clackamas River watershed. This atlas was produced as one way to share the information collected with resource managers, policy makers, and people living in and interested in the Clackamas River watershed. The project study area is the entire land area draining into the Clackamas River in northwestern Oregon, referred to as the Clackamas River watershed. The watershed is part of the lower portion of the Willamette River basin. Close

• 26. [Article] Watershed response to western juniper control

  Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and ...

  Citation × Citation Citation Abstract Copy Title: Watershed response to western juniper control Author: Deboodt, Timothy L. Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a site received. Studies published in the 1970’s and 1980’s, suggest that a minimum 4500 mm (18 inches) of annual precipitation was necessary before an increase in water yield manifested itself following vegetation manipulation. In 1993, a paired watershed study was initiated in the Camp Creek drainage, a tributary of the Crooked River of central Oregon, to evaluate the impacts of cutting western juniper on the hydrologic function of those sites. The study involved a paired watershed approach using watersheds of approximately 110 hectares (270 acres) each to evaluate changes in a system’s water budget following the reduction of western juniper. The 30 year average annual precipitation for the area is 3500 mm (13.75) and during the study period, annual precipitation ranged from 80 percent to 129 percent of average. In 2005, following 12 years of pretreatment monitoring in the 2 watersheds (Mays and Jensen) all post-European aged juniper (juniper < 140 years of age) were cut from the treatment watershed (Mays). Analysis indicated that juniper reduction significantly increased late season spring flow by 225 percent (alpha > .05), increased days of recorded ground water by an average of 41 days (alpha > .05) and increased the relative availability of late season soil moisture at soil depths of .76 m (27 inches) (alpha > 0.1). Ephemeral channel flow did not show a predictable trend during 2 years of post treatment measurements. Channel flow is dependent on spring snow melt and severe summer thunderstorm activity. When winter soils were greater than 0 degrees Celsius (32 degrees F), the source of channel flow in Mays was observed to be seepage from the channel banks. Channel flow in Jensen appeared to be a result of rock forcing subsurface flows to the surface. Vegetative responses showed significant increases in perennial forb canopy cover (alpha > .01) and annual forb and annual grass basal cover (alpha > .05). Increases were also found in reduction of percent bare ground and increase in shrub cover, but were not significant. A statistically insignificant decrease in perennial grass cover was noted in the treated watershed however a large amount of reproductive culms were noted in the treated watershed in 2007 compared to the control watershed. Hillslope erosion and channel morphology showed no predictable trend following treatment. Inherent differences in channel morphology between the two watershed prior to treatment existed. This difference may be a product of the two channels being at different evolutionary or successional stages relative to each other and thus indicating that channel recovery would be different for each watershed. The Camp Creek project illustrated that for this system, managing vegetation for water yield may be obtainable at a much lower precipitation threshold than what was previously reported in the literature. Title: Watershed response to western juniper control Author: Deboodt, Timothy L. Western juniper (Juniperus occidentalis) encroachment has been associated with increased soil loss and reduced infiltration resulting in the loss of native herbaceous plant communities and the bird and animal species that rely on them. Hydrologically, however, change in water yield has been linked with the amount of annual precipitation a site received. Studies published in the 1970’s and 1980’s, suggest that a minimum 4500 mm (18 inches) of annual precipitation was necessary before an increase in water yield manifested itself following vegetation manipulation. In 1993, a paired watershed study was initiated in the Camp Creek drainage, a tributary of the Crooked River of central Oregon, to evaluate the impacts of cutting western juniper on the hydrologic function of those sites. The study involved a paired watershed approach using watersheds of approximately 110 hectares (270 acres) each to evaluate changes in a system’s water budget following the reduction of western juniper. The 30 year average annual precipitation for the area is 3500 mm (13.75) and during the study period, annual precipitation ranged from 80 percent to 129 percent of average. In 2005, following 12 years of pretreatment monitoring in the 2 watersheds (Mays and Jensen) all post-European aged juniper (juniper < 140 years of age) were cut from the treatment watershed (Mays). Analysis indicated that juniper reduction significantly increased late season spring flow by 225 percent (alpha > .05), increased days of recorded ground water by an average of 41 days (alpha > .05) and increased the relative availability of late season soil moisture at soil depths of .76 m (27 inches) (alpha > 0.1). Ephemeral channel flow did not show a predictable trend during 2 years of post treatment measurements. Channel flow is dependent on spring snow melt and severe summer thunderstorm activity. When winter soils were greater than 0 degrees Celsius (32 degrees F), the source of channel flow in Mays was observed to be seepage from the channel banks. Channel flow in Jensen appeared to be a result of rock forcing subsurface flows to the surface. Vegetative responses showed significant increases in perennial forb canopy cover (alpha > .01) and annual forb and annual grass basal cover (alpha > .05). Increases were also found in reduction of percent bare ground and increase in shrub cover, but were not significant. A statistically insignificant decrease in perennial grass cover was noted in the treated watershed however a large amount of reproductive culms were noted in the treated watershed in 2007 compared to the control watershed. Hillslope erosion and channel morphology showed no predictable trend following treatment. Inherent differences in channel morphology between the two watershed prior to treatment existed. This difference may be a product of the two channels being at different evolutionary or successional stages relative to each other and thus indicating that channel recovery would be different for each watershed. The Camp Creek project illustrated that for this system, managing vegetation for water yield may be obtainable at a much lower precipitation threshold than what was previously reported in the literature. Close

• 27. [Article] The Partnership for Coastal Watersheds collaboration compact

  Unsigned document

  Citation × Citation Citation Abstract Copy Title: The Partnership for Coastal Watersheds collaboration compact Author: Partnership for Coastal Watersheds Unsigned document Title: The Partnership for Coastal Watersheds collaboration compact Author: Partnership for Coastal Watersheds Unsigned document Close

• 28. [Article] Nehalem River watershed assessment

  Watershed assessment is a process for evaluating how well a watershed is working. The purpose of this assessment was to determine how natural and human-induced changes have impacted the sustainability ...

  Citation × Citation Citation Abstract Copy Title: Nehalem River watershed assessment Author: Maser, Jospeh, Johnson, Jill Watershed assessment is a process for evaluating how well a watershed is working. The purpose of this assessment was to determine how natural and human-induced changes have impacted the sustainability of salmon populations in the Nehalem River Watershed. Both historical and current information is included regarding the watershed’s ability to produce clean water and healthy salmon habitat. The assessment was prepared for the Upper and Lower Nehalem River Watershed Councils. It will be a baseline for developing and prioritizing potential restoration projects in terms of fish habitat. Geographic Information Systems (GIS) was used for much of the analysis and has been provided to the watershed councils. Title: Nehalem River watershed assessment Author: Maser, Jospeh, Johnson, Jill Watershed assessment is a process for evaluating how well a watershed is working. The purpose of this assessment was to determine how natural and human-induced changes have impacted the sustainability of salmon populations in the Nehalem River Watershed. Both historical and current information is included regarding the watershed’s ability to produce clean water and healthy salmon habitat. The assessment was prepared for the Upper and Lower Nehalem River Watershed Councils. It will be a baseline for developing and prioritizing potential restoration projects in terms of fish habitat. Geographic Information Systems (GIS) was used for much of the analysis and has been provided to the watershed councils. Close

• 29. [Article] The Partnership for Coastal Watersheds: A progress report

  This report assesses the progress of the Partnership for Coastal Watersheds (PCW) Project from its inception through the summer of 2012. First, the PCW is described and PCW meeting activities are discussed. ...

  Citation × Citation Citation Abstract Copy Title: The Partnership for Coastal Watersheds: A progress report Author: Elkins Watson, Julie, Walker, Gregg, Russo Kelly, Miriah This report assesses the progress of the Partnership for Coastal Watersheds (PCW) Project from its inception through the summer of 2012. First, the PCW is described and PCW meeting activities are discussed. Following this foundation information, the report describes its assessment methods and presents the results of those methods. The report concludes with a presentation of observations and recommendations. During the Winter of 2009/2010 the South Slough National Estuarine Research Reserve (SSNERR) and the Coos Watershed Association (CWA) invited local landowners, technical advisors, and interested individuals and organizations to join them on a new approach to managing coastal watersheds. CWA and SSNERR leaders envisioned a partnership that would focus on the 35,155 acre area of the South Slough watershed and several small watersheds that drain to the Pacific Ocean between Cape Arago and Bullards Beach (the coastal frontal watersheds) in Southwestern Oregon. The PCW, the conveners hoped, could provide local communities (such as Charleston and Coos Bay) with a way to anticipate and respond to the local effects of climate and land use changes (Coos Watershed Association). Title: The Partnership for Coastal Watersheds: A progress report Author: Elkins Watson, Julie, Walker, Gregg, Russo Kelly, Miriah This report assesses the progress of the Partnership for Coastal Watersheds (PCW) Project from its inception through the summer of 2012. First, the PCW is described and PCW meeting activities are discussed. Following this foundation information, the report describes its assessment methods and presents the results of those methods. The report concludes with a presentation of observations and recommendations. During the Winter of 2009/2010 the South Slough National Estuarine Research Reserve (SSNERR) and the Coos Watershed Association (CWA) invited local landowners, technical advisors, and interested individuals and organizations to join them on a new approach to managing coastal watersheds. CWA and SSNERR leaders envisioned a partnership that would focus on the 35,155 acre area of the South Slough watershed and several small watersheds that drain to the Pacific Ocean between Cape Arago and Bullards Beach (the coastal frontal watersheds) in Southwestern Oregon. The PCW, the conveners hoped, could provide local communities (such as Charleston and Coos Bay) with a way to anticipate and respond to the local effects of climate and land use changes (Coos Watershed Association). Close

• 30. [Article] An assessment of community-based adaptive watershed management in three Umpqua Basin Watersheds

  The dissertation introduces community-based adaptive watershed management (CAWM) as a holistic conservation framework. The CAWM framework integrates social and ecological suitability to achieve conservation ...

  Citation × Citation Citation Abstract Copy Title: An assessment of community-based adaptive watershed management in three Umpqua Basin Watersheds Author: Habron, Geoffrey Bryan The dissertation introduces community-based adaptive watershed management (CAWM) as a holistic conservation framework. The CAWM framework integrates social and ecological suitability to achieve conservation outcomes. The core theoretical concepts consist of adaptive management, adoption-diffusion, symbolic interactionism, community-based conservation, spatial analysis and watershed management. The CAWM framework is applied to the Calapooya Creek, Deer Creek and Myrtle Creek watersheds within the Umpqua River Basin in Southwestern Oregon. The goal of the research is to facilitate effective watershed restoration outcomes grounded in a solid understanding of social and ecological dynamics. Applying the CAWM framework provides the basis to determine the kinds of conservation practices to implement, the locations in which to implement them and the kinds of programs to stimulate their adoption. Therefore, the dissertation objectives are to: 1) identify agricultural landowner participation in watershed conservation projects; 2) assess the spatial distribution of watershed projects; 3) determine the characteristics of participating and non-participating landowners; and 4) determine the sociocultural, ecological and geographic constraints to adaptive watershed management. Data were collected during 1997-1998 using agricultural landowner interviews, a mail landowner survey and observations of the Umpqua Basin Watershed Council. Landowners' worldviews consist of independence, the importance of private property rights, aversion toward government interference and a belief in environmental resilience. Landowners implement upland conservation practices such as off-stream livestock water developments and rotational grazing more often than riparian fencing, riparian tree planting and installing fish screens on instream irrigation diversions. The key factors in adoption of conservation practices include the use of irrigation, shared management decisions with a spouse, a belief in scientific experimentation and discussion of conservation with others. Spatial analysis using geographic information systems indicate that a suite of conservation practices is needed to achieve a network of large, connected patches throughout the watersheds. Title: An assessment of community-based adaptive watershed management in three Umpqua Basin Watersheds Author: Habron, Geoffrey Bryan The dissertation introduces community-based adaptive watershed management (CAWM) as a holistic conservation framework. The CAWM framework integrates social and ecological suitability to achieve conservation outcomes. The core theoretical concepts consist of adaptive management, adoption-diffusion, symbolic interactionism, community-based conservation, spatial analysis and watershed management. The CAWM framework is applied to the Calapooya Creek, Deer Creek and Myrtle Creek watersheds within the Umpqua River Basin in Southwestern Oregon. The goal of the research is to facilitate effective watershed restoration outcomes grounded in a solid understanding of social and ecological dynamics. Applying the CAWM framework provides the basis to determine the kinds of conservation practices to implement, the locations in which to implement them and the kinds of programs to stimulate their adoption. Therefore, the dissertation objectives are to: 1) identify agricultural landowner participation in watershed conservation projects; 2) assess the spatial distribution of watershed projects; 3) determine the characteristics of participating and non-participating landowners; and 4) determine the sociocultural, ecological and geographic constraints to adaptive watershed management. Data were collected during 1997-1998 using agricultural landowner interviews, a mail landowner survey and observations of the Umpqua Basin Watershed Council. Landowners' worldviews consist of independence, the importance of private property rights, aversion toward government interference and a belief in environmental resilience. Landowners implement upland conservation practices such as off-stream livestock water developments and rotational grazing more often than riparian fencing, riparian tree planting and installing fish screens on instream irrigation diversions. The key factors in adoption of conservation practices include the use of irrigation, shared management decisions with a spouse, a belief in scientific experimentation and discussion of conservation with others. Spatial analysis using geographic information systems indicate that a suite of conservation practices is needed to achieve a network of large, connected patches throughout the watersheds. Close