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Keyword: thinning

Role of fire in restoration of a ponderosa pine forest, Washington

Publications Posted on: September 18, 2007
Ponderosa pine forests in the Eastern Cascades of Washington support dense, overstocked stands in which crown fires are probable, owing to postsettlement sheep grazing, logging, and fire exclusion. In 1991, the Okanogan-Wenatchee National Forests began to apply long-term management techniques to reverse postsettlement changes in ponderosa pine forests.

Intermediate treatments

Publications Posted on: July 19, 2007
Intermediate treatments are those applied after a new stand is successfully established and before the final harvest. These include not only intermediate cuttings - primarily thinning - but also fertilization, irrigation, and protection of the stand from damaging agents.

Using models to provide a virtual test of forest treatments

Publications Posted on: July 05, 2007
BEMRP's participation in the Bitterroot National Forest's proposed Trapper Bunkhouse Land Stewardship Project (Trapper-Bunkhouse Project) consists of two parts. One is the field study mentioned elsewhere in this ECO-Report that is looking into the effects of thinning and burning on various resources. The other part involves modeling to determine where treatments should take place both from a fuel reduction and economic standpoint.

The effectiveness of vegetation management practices for prevention and control of bark beetle infestations in coniferous forests of the western and southern United States

Publications Posted on: January 09, 2007
Insects are major components of forest ecosystems, representing most of the biological diversity and affecting virtually all processes and uses. In the USA, bark beetles (Coleoptera: Curculionidae, Scolytinae) heavily influence the structure and function of these ecosystems by regulating certain aspects of primary production, nutrient cycling, ecological succession and the size, distribution and abundance of forest trees.

Wildlife and invertebrate response to fuel reduction treatments in dry coniferous forests of the Western United States: a synthesis

Publications Posted on: September 07, 2006
This paper synthesizes available information on the effects of hazardous fuel reduction treatments on terrestrial wildlife and invertebrates in dry coniferous forest types in the West. We focused on thinning and/or prescribed fire studies in ponderosa pine (Pinus ponderosa) and dry-type Douglas-fir (Pseudotsuga menziesii), lodgepole pine (Pinus contorta), and mixed coniferous forests.

Conceptual framework for studying the effects of fuels treatments on avian communities in ponderosa pine forests of northern Arizona

Publications Posted on: July 26, 2006
Many ponderosa pine (Pinus ponderosa) forests in the western US are dense and contain excessive accumulations of ground and ladder fuels, resulting in forests at high risk of catastrophic fire. Prescribed fire and thinning are two potential tools used in the reduction of forest fuels, although the ecological and economic consequences of applying these tools are not well understood.

Is self-thinning in ponderosa pine ruled by Dendroctonus bark beetles?

Publications Posted on: June 20, 2006
Stand density of even-aged stands of ponderosa pine in California seems to be ruled by Dendroctonus bark beetles, rather than the suppressioninduced mortality common for other tree species. Size-density trajectories were plotted for 155 permanent plots in both plantations and natural stands.

Silvicultural practices (commercial thinning) are influencing the health of natural pine stands in eastern California

Publications Posted on: June 20, 2006
Overstocked 70- to 90-year-old stands of ponderosa pine on medium to low quality sites were thinned in 1980 to 40, 55, and 70 percent of normal basal area and compareh to an unthinned control. Mortality was recorded annually. Growth was measured every 5 years from 1980 to 1994.

Effects of thinnings on growth and yield in natural Pinus arizonica and Pinus durangensis stands in the El Largo-Madera region in Chihuahua State

Publications Posted on: June 20, 2006
This paper presents the result of the first dasometric analysis made with the data of some permanent thinning plots established at different times since 1964 in the Unit of Conservation and Forest Development #2 in Chihuahua State, Mexico. The results show the benefits of thinnings on the growth rates of residual stands, the increment's redistribution, and the potential mortality.

Management of thinned Emory oak coppice for multiple resource benefits

Publications Posted on: June 13, 2006
Managers are increasingly moving toward an ecosystem-based, multiple-use approach in managing Emory oak woodlands in the Southwestern United States. Often of particular interest is managing the coppice that evolves from earlier fuelwood harvesting activities. Emory oak (Quercus emoryi) is a prolific sprouting species and, as a consequence, post-harvesting stands can support copious coppice on the cut rootstocks.