A5090691285- Land Use and Ecosystem Services
- Urban Stormwater Management Solutions
- Hydrology and Watershed Management Studies
- Fish Ecology and Management Studies
- Hydrology and Sediment Transport Processes
- Soil and Water Nutrient Dynamics
- Ecology and Vegetation Dynamics Studies
- Plant Water Relations and Carbon Dynamics
- Botany, Ecology, and Taxonomy Studies
- Rangeland and Wildlife Management
- Flood Risk Assessment and Management
- Economic and Environmental Valuation
- Berry genetics and cultivation research
- Seedling growth and survival studies
- Water resources management and optimization
- Soil erosion and sediment transport
- Water Quality and Pollution Assessment
- Urban Heat Island Mitigation
- Urban Green Space and Health
- Fire effects on ecosystems
- Forest ecology and management
- Turfgrass Adaptation and Management
- Tree-ring climate responses
- Species Distribution and Climate Change
- Sustainability and Climate Change Governance
University of Maryland, Baltimore County
2016-2024
Columbia Medical Practice
2024
Portland State University
2005-2020
Oregon Department of Fish and Wildlife
2013
Oregon State University
2013
Oregon Watershed Enhancement Board
2013
Corvallis Environmental Center
2013
Duke University
2003
University of Kansas
2003
Cornell University
2003
Making trade-offs between ecological services and other contributors to human well-being is a difficult but critical process that requires valuation. This allows both better recognition of the ecological, social, economic also us bill those who use up or destroy reward produce enhance them. It aids improved ecosystems policy. In this paper we clarify some controversies in defining contributions from functioning ecosystems, many which people are not even aware of. We go on describe...
Journal Article Inferring Process from Pattern in Natural Communities: Can we understand what see? Get access William G. Cale, Cale Search for other works by this author on: Oxford Academic Google Scholar Geoffrey M. Henebry, Henebry J. Alan Yeakley BioScience, Volume 39, Issue 9, October 1989, Pages 600–605, https://doi.org/10.2307/1311089 Published: 01 1989
Abstract Blue‐Green Infrastructure (BGI) is recognized as a viable strategy to manage stormwater and flood risk, its multifunctionality may further enrich society through the provision of multiple cobenefits that extend far beyond hydrosphere. Portland, Oregon, an internationally renowned leader in implementation BGI showcases many best practice examples. Nonetheless, range interdisciplinary barriers uncertainties continue cloud decision making impede wider BGI. In this paper, we synthesize...
Abstract. Soil moisture gradients along hillslopes in humid watersheds, although indicated by vegetation and studies using models, have been difficult to confirm empirically. While soil properties topographic features are the two general physio-graphic factors controlling on hillslopes, shown conflicting results regarding which factor is more important. The relative importance of property controls was examined an upland forested watershed at Coweeta Hydrologic Laboratory southern Appalachian...
Abstract. We investigate relationships between environmental governance and water quality in two adjacent growing metropolitan areas the western US. While Portland, Oregon Vancouver, Washington metro share many common biophysical characteristics, they have different land development histories structures, providing a unique opportunity for examining how differences might affect quality. conceptualize possible linkages which influences directly, using monitoring efforts as metric, indirectly...
We investigated water resource vulnerability in the US portion of Columbia River basin (CRB) using multiple indicators representing supply, demand, and quality. Based on county scale, spatial analysis was conducted various biophysical socio-economic that control vulnerability. Water supply demand exhibited a similar clustering hotspots areas where agricultural lands variability precipitation were high but dam storage capacity low. The quality clustered around main stem major population...
To mitigate the adverse impacts of urban stormwater on streams, watershed managers are increasingly using low impact development and green infrastructure (LID-GI) control measures such as rain gardens—vegetated depressional areas that collect infiltrate runoff from rooftops driveways. Their catchment-scale performance, however, can vary widely, few studies have investigated cumulative performance residential gardens for event in intermediate-sized (i.e., 1-10 km2) suburban...
Gaps in the forest canopy can increase diversity of tree regeneration. Understory shrubs also compete with seedlings for limited resources and may depress recruitment. We compared effects shrub removal windthrow gaps on seedling recruitment understory resource levels. Shrub removal, left intact, was associated increased levels light soil moisture coincided species richness regeneration to both control plots gaps. Canopy gaps, however, resulted a more than 500 fold nitrate concentrations,...
ABSTRACT: We investigated spatial and temporal relationships among surface subsurface watershed attributes stream nutrient concentrations in urbanizing Johnson Creek northern Oregon. sampled water at eight urban five nonurban locations from March 1998 through December 1999. wells distributed over the two primary aquifers watershed. Using a Geographic Information System (GIS), percentages of landuse within radius 30, 91, 152 m each sample site were quantified. analyzed between (1) percentage...
Between 1990 and 2014, more than 200 restoration projects were implemented in the Johnson Creek Watershed, Oregon, to mitigate storm water runoff, restore floodplains, remove invasive plants, wetlands, improve fish wildlife habitat. We use a repeat-sales model investigate if have an effect on sale price of nearby single-family residential properties, estimated effects vary by project phase, distance, type. Properties closest proximity water, floodplain, revegetation experience positive...
Microsites, local features having the potential to alter environment for seedling regeneration, may help define likely trends in high-elevation forest regeneration pattern. Although multiple microsites exist any alpine treeline ecotone (ATE) on continent, some appear enhance density of better than others. Known stresses ATE include low temperature, substrate moisture, high radiation, drought, wind, and both snowfall amount. Relationships among various microsite types, annual precipitation,...
The destruction of riparian vegetation in urban areas signals the loss valuable ecosystem services. This paper documents extent during a period rapid development (1990 – 2002) three Oregon cities with distinctive, local management strategies. Findings show that has occurred all cities, but this been curtailed by implementation protective policies. Moreover, more than half losses each city were due to few large projects, rather number smaller ones. concludes strategies do limit destructive...