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Forest Biomass Harvesting In The Northeast: A Special-Needs Operation?, Jeffrey Benjamin, Robert J. Lilieholm, Charles E. Coup Jun 2010

Forest Biomass Harvesting In The Northeast: A Special-Needs Operation?, Jeffrey Benjamin, Robert J. Lilieholm, Charles E. Coup

Publications

There is growing interest in harvesting forest biomass to meet the needs of bioenergy and bioproducts facilities in the Northeast. This interest is accompanied by increased concern over the potential impacts of biomass removals on forest ecosystems. Debates over biomass proposals have revealed a considerable level of confusion over the term biomass harvest, much of which stems from ambiguity surrounding the term forest biomass. Indeed, all forest material removed during harvest is forest biomass, yet many view only a small portion of this—typically low-value chipped material—as biomass. Since much of this material is destined for use as energy, we feel …


Monitoring Vegetation Change By Using Remote Sensing: An Examination Of Visitor-Induced Impact At Cadillac Mountain, Acadia National Park, Min Kook Kim May 2010

Monitoring Vegetation Change By Using Remote Sensing: An Examination Of Visitor-Induced Impact At Cadillac Mountain, Acadia National Park, Min Kook Kim

Electronic Theses and Dissertations

Cadillac Mountain, the highest peak along the eastern seaboard in the United States, is a major visitor destination at Acadia National Park. Managing vegetation impact on the summit of Cadillac Mountain is extremely challenging given the number of users and dispersed nature of visitor use at this fragile environmental setting. Since 2000, more intensive management strategies based on placing physical barriers to protect threatened vegetation and leave no trace signs have been employed to reduce vegetation impact and enhance vegetation recovery in the vicinity of the summit loop trail. A number of different change detection techniques and high resolution remote …


Estimating Spatial Distribution Of American Lobster Homarus Americanus Using Habitat Variables, J. H. Chang, Yong Chen, D. Holland, J. Grabowski Jan 2010

Estimating Spatial Distribution Of American Lobster Homarus Americanus Using Habitat Variables, J. H. Chang, Yong Chen, D. Holland, J. Grabowski

Marine Sciences Faculty Scholarship

The spatial distribution of the American lobster Homarus americanus is influenced by many factors, which are often difficult to quantify. We implemented a modeling approach for quantifying season-, size-, and sex-specific lobster spatial distribution in the Gulf of Maine with respect to environmental and spatial variables including bottom temperature, bottom salinity, latitude, longitude, depth, distance offshore, and 2 substratum features. Lobster distribution was strongly associated with temperature and depth, and differed seasonally by sex. In offshore waters in the fall, females were dominant at higher latitudes and males at lower latitudes. This segregation was not apparent in the spring although …