The purpose of this study was to explore and describe
the nature of local school-community human service agency
collaboration undertaken to address the needs of at-risk
youth. The study focused on the experience of four youth
services teams in two Oregon counties.
A qualitative, multiple-case study approach was used as...
Following high-severity fire, forest succession may take alternate pathways depending on the pattern of the fire and any secondary disturbances during early stand development, with lasting consequences for ecosystem function. The objectives of this research were to quantify: (1) early postfire regeneration as influenced by the spatial pattern of a...
The proposed construction of a four lane road, the
Salem Parkway, was evaluated regarding the potential environmental
impacts its location would have upon biotic resources and water
quality. Due to existing commitment of the study area to urbanization
and agriculture, only limited environmental sensitivity was observed
overall. It was found...
Atmospheric carbon dioxide levels have been steadily increasing from anthropogenic energy production, development and use. Carbon cycling in the terrestrial biosphere, particularly forest ecosystems, has an important role in regulating atmospheric concentrations of carbon dioxide. US West coast forest management policies are being developed to implement forest bioenergy production while...
Earth’s atmosphere is unequivocally warming due to CO₂ and other greenhouse gas (GHG) emissions from human activities and this is having widespread impacts on forest ecosystems that provide important services to human societies. Forest ecosystems help regulate atmospheric CO2 concentrations by sequestering carbon in tree biomass and soils, which is...
Fire is a fundamental disturbance that drives terrestrial and atmospheric carbon dynamics. Previous studies have quantified fire effects on carbon cycling from local to global scales but have focused nearly exclusively on high-severity, stand-replacement fire. Since 2002, variable-severity wildfires have burned more than 65 000 ha across the east slope...
Communities across the United States are becoming more culturally and ethnically diverse. Indeed, demographers predict that by 2030 most of America’s school-age children will be from a minority group and by 2050, so will most Americans. This increasing diversity changes the nature of the population served by volunteer-based organizations, and...
The role of fire as a natural disturbance, its interactions with nonnative species and effects of repeated fires in the Hawaiian Islands have received little investigation. We are unsure of the role fire played in shaping forest structure and composition as well as affecting evolutionary processes of the native biota....
Net uptake of carbon from the atmosphere (net ecosystem production, NEP) is dependent on climate, disturbance history, management practices, forest age, and forest type. To improve understanding of the influence of these factors on forest carbon flux in the western U.S., a combination of federal inventory data and supplemental ground...