Treesearch

We measured forest floor CO2 flux in two contrasting ecosystems (white pine plantation and northern hardwood ecosystems at low and high elevations, respectively) in May and September 1993 to quantify differences and determine factors regulating CO2 fluxes. An automated, IRGA based, flow through system was used with chambers inserted into the soil. This approach allowed quantification of diurnal flux patterns which were subsequently averaged to estimate daily mean flux rates (umol m-2 s-1). Mean flux rates were 60 percent greater in the white pine ecosystem (8.9 umol m-2 s-1) than in the...

Two invited papers, 57 volunteer papers, and 22 volunteer poster summaries presented at the 10th Central Hardwood Forest Conference. Presentation topics included economics, forest amenities, harvesting, logging safety, utilization, physiology, genetics, ecology, regeneration, silviculture, protection, management, hydrology, soils, nutrient cycling, and hardwood markets of central hardwood forests.

This paper presents the steps involved in developing an open space plan. The steps are generic in that the methods may be applied various size communities. The intent is to provide a framework to develop an open space plan that meets Massachusetts requirements for funding of open space acquisition.

Though our wildlands are important destinations for international visitors, little is known about their activities or influence on local economies. This paper encourages resource managers to assume leadership for developing an international tourism strategy for our wildlands by packaging lesser known wildland attractions as regional complexes to attract tourists.

Environmental constraints become apparent when one considers the maintenance and operation of a golf course. The high demand for water, proximity to surface or ground water supplies and the potential threats by the perpetuation of the grounds. This investigation of a new golf course construction site will identify the threats to the environment.

The perception exists that the forest industry in the United States is the antithesis of the green revolution. For instance, I recently saw the results of a poll that listed three forest products companies among the 10 worst polluters in the United States. That's all there was; their names splashed across the T V screen on the early morning news. That very appearance undoubted resulted in lost sales because some viewer would have immediately determined that those organizations, and thus the industry, were irresponsible members of society.

We describe the structure, composition, and dynamics of Schnabel Woods, an 80-acre mixed mesophytic old-growth stand located in the loess-covered River Hills adjoining the Missouri River floodplain in central Missouri. In 1982 all trees on a 1.5-ac northwest-facing plot and a 1.5-ac southeast-facing plot were mapped and measured. In 1992 we remeasured those plots to observe current conditions and changes in species composition and stand structure over time. In 1992 density was 381 trees/acre, basal area was 124 ft²/ac, and the mean dbh was 5.2 in (for trees ≥ 0.8 in dbh). The stand was...

Little information is available concerning the initial stages of forest regeneration following intensive harvesting of central hardwood stands in the northeastern part of the range. Establishment of commercial species, density, and rate of biomass accumulation of the regeneration are of major concern to both foresters and landowners contemplating a harvest. To help provide this information, a 6-ha forest stand dominated by the central hardwood forest type of Connecticut was mechanically whole-tree clearcut in 1981. Intensive sampling of the regeneration including herbs, shrubs, tree...

Electric deer exclusion fencing has become a widely used management tool to promote hardwood regeneration in high deer browsing intensity areas. To assess the impacts of deer browsing on hardwood regeneration and vegetation patterns on clearcuts, six clearcuts with paired electric fenced and unfenced treatments were investigated. Additional data were collected on 10 sites with only fenced clearcut treatments. Overall browse damage on fenced treatments was lower than unfenced treatments, but there were substantial species-specific variability. The vegetation patterns on clearcuts were...

This study examined the relationship of two methods of scaling the Outdoor Situational Fear Inventory - continuum scaling and the more easily scored certainty method of scaling. Although item-by-item correlations varied widely, overall and subscale score relationships were strong. The data also suggested ways to clarify interpretations of earlier continuum scaled OSFI scores.