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- Community based education -- Case studies (1)
- Dams -- Environmental aspects (1)
- Douglas fir -- Spacing -- Oregon -- Mount Hood (1)
- Douglas fir -- Thinning -- Oregon -- Mount Hood (1)
- Endemic plants -- Oregon -- Portland (1)
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- Environmental education -- Malawi (1)
- Family-owned business enterprises -- Succession (1)
- Fish trade (1)
- Fisheries -- Economic aspects -- Oregon (1)
- Fisheries -- Oregon -- Fishing effort (1)
- Forest biodiversity -- Oregon -- Mount Hood (1)
- Forest canopies -- Oregon -- Mount Hood (1)
- Forest management -- Oregon -- Mount Hood (1)
- Government purchasing -- Environmental aspects (1)
- Green products -- Purchasing (1)
- Marine parks and reserves -- Oregon (1)
- Old growth forests -- Oregon -- Mount Hood (1)
- Peace Corps (U.S.) -- Malawi (1)
- Ponds -- Environmental aspects (1)
- Reed canary grass -- Control (1)
- Refuse and refuse disposal -- Bonneville Dam (Or and Wash) (1)
- Runoff (1)
- Streamflow (1)
- Urban watersheds -- Oregon -- Tualatin River Watershed (1)
- Vegetation management (1)
- Waste minimization -- Bonneville Dam (Or and Wash) (1)
- Wetland management -- Oregon -- Portland (1)
Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Waste Stream And Green Purchasing Analysis At Bonneville Lock And Dam, Alexander Bienko
Waste Stream And Green Purchasing Analysis At Bonneville Lock And Dam, Alexander Bienko
Environmental Science and Management Professional Master's Project Reports
The United States Army Corps of Engineers (USACE), Portland District, has jurisdiction on three locks and four dams in the Columbia River basin. These sites "contribute to a water resource management system that provides flood risk management, power generation, water quality improvement, fish and wildlife habitat and recreation on the Columbia River and some of its tributaries". The Bonneville Lock and Dam (Bonneville Project) site lies on the Columbia River approximately 40 miles east from Portland, Oregon. Portions of the site have been declared a National Historic Landmark, from its origins in President Franklin D. Roosevelt's New Deal program from …
Effects Of Beaver Dams On Urban Stream Hydraulic Response During Storm Events, Erin Poor
Effects Of Beaver Dams On Urban Stream Hydraulic Response During Storm Events, Erin Poor
Environmental Science and Management Professional Master's Project Reports
Urbanization of landscapes alters watershed hydrology, leading to changes in the natural flow regime of local streams. Runoff from impervious surfaces and routing of stormwater can cause a rapid increase in the volume and velocity of streamflow. This is observed in the hydrograph as a steep rising limb, followed by a high peak, and a rapid falling limb. This rapidly varying streamflow, often referred to as flashiness, can increase erosive forces on the channel bed and banks, leading to channel incision and bank erosion. In areas where the hydrologic regime is less impacted by humans, beaver dams and ponds attenuate …
Long-Term Managed Flooding To Control Invasive Phalaris Arundinacea L. And Help Restore Native Vegetation In An Urban Palustrine Wetlands Ecosystem, Robert P. Lascheck
Long-Term Managed Flooding To Control Invasive Phalaris Arundinacea L. And Help Restore Native Vegetation In An Urban Palustrine Wetlands Ecosystem, Robert P. Lascheck
Environmental Science and Management Professional Master's Project Reports
We sought to determine the effects of 13 years of hydrologic management on the wetland plant community in Smith and Bybee Wetlands Natural Area (SBW), an 809 ha palustrine wetland complex in north Portland, Oregon. Previous management efforts resulted in an altered hydrologic regime; historically high water levels in spring and low water levels in fall were replaced by persistent water levels with minimal annual variations. A water control structure was installed in 2003 to better approximate historic seasonal hydrologic changes to reduce invasive Phalaris arundinacea (reed canarygrass) cover and promote native wetland vegetation growth. Vegetation monitoring has been carried …
Monitoring And Evaluating Malawi Youth Conservation Engagement After Community-Based Environmental Education Workshops, Stefanie Kramer
Monitoring And Evaluating Malawi Youth Conservation Engagement After Community-Based Environmental Education Workshops, Stefanie Kramer
Environmental Science and Management Professional Master's Project Reports
This project addressed Peace Corps Malawi’s need to redevelop and implement environmental education workshops using a community-based approach, monitored project outcomes from these workshops, and provided an evaluation of strengths and areas for improvement of the environmental education workshop program.
Assessing Effort Shifts And Familial Succession In Oregon’S Nearshore Fisheries, Bryn Ellen Hudson
Assessing Effort Shifts And Familial Succession In Oregon’S Nearshore Fisheries, Bryn Ellen Hudson
Environmental Science and Management Professional Master's Project Reports
Since the industrial revolution, natural resource systems have rapidly modernized and globalized. Commercial fishing industries have expanded and optimized resource extraction but have often times exceeded sustainable levels of harvest. In the Pacific Northwestern United States, the commercial fishing industry is one of particular economic and cultural importance. Due to reduced yield of many native fish stocks, marine reserves have been implemented in Oregon’s nearshore waters in an effort to conserve biodiversity. While spatial closures of marine reserves seek to preserve and stabilize Oregon’s ocean ecosystems, adverse socioeconomic implications are inevitably created when profitable waters are set aside. A main …
Effects Of Variable Density Thinning On Spatial Patterns Of Overstory Trees In Mt. Hood National Forest, Emma Huston
Effects Of Variable Density Thinning On Spatial Patterns Of Overstory Trees In Mt. Hood National Forest, Emma Huston
Environmental Science and Management Professional Master's Project Reports
Variable density thinning (VDT) is a method of restoration thinning that attempts to increase ecosystem resilience and spatial heterogeneity in forest stands to more closely resemble mosaic-like patterns characteristic of late-successional forests, which consist of clusters of multiple trees, individual trees, and gaps. This study examines the spatial patterning of overstory trees resulting from VDT of conifer forests in Mt. Hood National Forest in the western Cascade Mountains and compares these patterns with reference conditions. Stem maps were created from field surveys of study plots within one mature stand and six thinned stands designated as Late-Successional Reserve (LSR) with varying …