Stand delineation estimation is one of the cornerstones of forest inventory mapping and a key element to forest management decision making. Stands are forest management units defined mainly by similar species composition, density, closure, height and age. Stand boundaries (and also attributes) are traditionally estimated through air photo interpretation. Visual interpretation is intelligibly su...

Variable retention harvest promotes biodiversity conservation in managed boreal forests by ensuring forest continuity and structural complexity. However, do post-harvest and post-fire patches maintain the same structural complexity? This study compares post-harvest and post-fire residual patches and proposes retention modalities that can maintain the same structural complexity as in natural for...

Although examples are rare, conflicts between species of conservation concern can result from habitat restoration that modifies habitat to benefit a single taxon. A forest restoration program designed to enhance habitat for endangered red-cockaded woodpeckers (Picoides borealis) may be reducing available habitat for the eastern spotted skunk (Spilogale putorius), a forest-adapted sympatric spec...

Forest structure is a key element to determine the capacity of mountain forests to protect people and their assets against natural hazards. Airborne laser scanning offers new ways for describing forest structure in 3D. This study aimed at developing a generic automated approach for assessing and quantifying forest structure using landscape metrics on height class patches of the normalized crown...

Use of soil water and groundwater by open-grown Acer saccharum Marsh. (sugar maple) tree canopies and forests was estimated by measuring transpiration (E) rates using porometry, sap flow methods, and the Bowen ratio method. The Bowen ratio and sap flow methods showed the best agreement; porometer measurements scaled to whole canopies always underestimated E by 15-50%. Trees of different sizes s...

Keywords: Forest understory herbs Lambda Land-use history Life table response experiment Population growth rate Prosartes lanuginosa a b s t r a c t Anthropogenic disturbances (e.g., logging) can strongly affect the composition and structure of forest understory herb communities, with land-use legacies often persisting for decades or even centuries. Many studies of forest plant response to land...

objective: ecosystems with mixed species compared to the ones with pure compositions provide a broader range of options in the fields of biodiversity, conservation, protection and restoration. nearly all forest plantations are established as monocultures, but research has shown that there are potential advantages to be gained by using carefully designed species mixtures in place of monocultures...

Image data from L-band airborne radiometer measurements over conifer forest stands in southern Virginia USA have shown a strong sensitivity to biomass and a weaker sensitivity to soil moisture. The data, was obtained by the horizontally polarized synthetic aperture radiometer, ESTAR, deployed aboard a NASA P3 aircraft. The data was acquired in July, August and November of 1999. The imaged regio...

Timber harvest projections for aspen-dominated forests in the prairie region of Canada include a truncation of the current age distribution, whereby old stands of ®re origin will become rarer on the landscape, while young, post-harvest stands will increase in abundance. To determine the effects this harvesting strategy might have on communities of breeding forest birds, we conducted point count...