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Growth and mortality of ponderosa pine poles thinned to various densities in the Blue Mountains of Oregon.
Growth and mortality in a ponderosa pine (
Pinus ponderosa
Dougl. ex Laws.) stand were investigated for 24 years. High mortality rates from mountain pine beetle (
Dendroctonus ponderosae
Hopkins) occurred on some plots where values for stand density index exceeded 140. Periodic annual increments for quadratic mean diameters...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
P.H. Cochran; James W. Barrett
Year:
1995
Keywords:
Growth, mortality, mountain pine beetle, ponderosa pine, Blue Mountains (Oregon), forest health, thinning
Source:
Res. Pap. PNW-RP-483. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 27 p
Development of a mixed shrub–ponderosa pine community in a natural and treated condition
On a medium site in northern California, a mostly shrub community was treated by two manual release techniques and by two herbicides, to study its development in both a natural (control) and treated condition. Survival and growth of planted ponderosa pine seedlings were quantified for 8 to 11 years after initial treatment applications. Treatments included manual...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Philip M. McDonald; Gary O. Fiddler
Year:
1995
Keywords:
cost, greenleaf manzanita, manual and chemical release, northern California, ponderosa pine seedlings, shrub community
Source:
Res. Paper PSW-RP-224. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 19 p
Uptake and Distribution of Nitrogen from Acidic Fog within a Ponderosa Pine (Pinus ponderosa Laws.)/Litter/Soil System
The magnitude and importance of wet deposition of N in forests of the South Coast (Los Angeles) Air Basin have not been well characterized. We exposed 3-yr-old ponderosa pine (Pinus ponderos Laws.) seedlings growing in native forest soil to acidic fog treatments (pH 3.1) simulating fog chemistry from a pine forest near Los Angeles, California. Fog solutions contained...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Mark E. Fenn; Theodor D. Leininger
Year:
1995
Keywords:
Nitrogen deposition, nitrogen saturation, nutrient cycling, wet deposit, ammonium nitrate.
Source:
Forest Science, Vol. 41, No. 4, November 1995. pp 645-663.
Biomass and nutrient distributions in central Oregon second-growth ponderosa pine ecosystems.
We investigated the distribution of biomass and nutrients in second-growth ponderosa pine (
Pinus ponderosa
Dougl. ex Laws.) ecosystems in central Oregon. Destructive sampling of aboveground and belowground tree biomass was carried out at six sites in the Deschutes National Forest; three of these sites also were intensively sampled for biomass and...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Susan N. Little; Lauri J. Shainsky
Year:
1995
Keywords:
Biomass, nutrient concentrations, allometric equations, ponderosa pine, carbon storage
Source:
Res. Pap. PNW-RP-481. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 17 p
Effects of elevated CO
2
and N fertilization on soil respiration from ponderosa pine (
Pine ponderosa
) in open-top chambers
We measured growing season soil CO
2
evolution under elevated atmospheric CO
2
and soil nitrogen (N) additions. Our objectives were to determine treatment effects, quantify seasonal variation, and determine regulating mechanisms. Elevated CO
2
treatments were applied in open-top chambers containing 3-...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
James M. Vose; Katherine J. Elliott; Dale W. Johnson; Roger F. Walker; Mark G. Johnson; David T. Tingey
Year:
1995
Keywords:
Source:
Can. J. For. Res. 25: 1243-1251 (1995)
Is self-thinning in ponderosa pine ruled by
Dendroctonus
bark beetles?
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. Bark beetle kills created a limiting Stand Density Index of...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
William W. Oliver
Year:
1995
Keywords:
Dendroctonus ponderosae, Pinus ponderosa, thinning, stand density, even-aged stands, forest health
Source:
In: L. G. Eskew, comp. Forest health through silviculture: proceedings of the 1995 National Silviculture Workshop, Mescalero, New Mexico, May 8-11, 1995. Gen. Tech. Rep. RM-GTR-267. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station: 213-218
Grazing on Regeneration Sites Encourages Pine Seedling Growth
Effects of season-long, deferred-rotation, and rest-rotation grazing, on ponderosa pine (
Pinus ponderosa
Dougl. ex Laws.) seedling growth and herbaceous vegetation control were studied in regeneration sites at Boyd Hill, Modoc National Forest, California. Seedlings were planted in 1989. Pine seedling survival and damage did not differ, but the...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Raymond D. Ratliff ; Renee G. Denton
Year:
1995
Keywords:
Ponderosa pine, Pinus ponderosa, survival and damage, range condition, cattle, plantation
Source:
Res. Paper PSW-RP-223. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. 11 p
The role of genetics in improving forest health
An often ignored tool to improve forest health is the application of genetics-Tree improvement programs in the Inland West utilize genetic principles to develop-seed transfer guidelines to avoid the problems associated with off-site plantings and to improve characteristics in conifers related to forest health. PC-based expert systems have been developed to aid in seed...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Mary F. Mahalovich
Year:
1995
Keywords:
forest health, genetics, insects, diseases, selective breeding, seed transfer
Source:
In: L.G. Eskew, comp. Forest health through silviculture: proceedings of the 1995 National Silviculture Workshop, Mescalero, New Mexico, May 8-11, 1995. Gen. Tech. Rep. RM-GTR-267. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station: 200-207
Soil CO
2
flux in response to elevated atmospheric CO
2
and nitrogen fertilization: patterns and methods
The evolution of carbon dioxide (CO
2
) from soils is due to the metabolic activity of roots, mycorrhizae, and soil micro- and macro-organisms. Although precise estimates of carbon (C) recycled to the atmosphere from belowground sources are unavailable, Musselman and Fox (1991) propose that the belowground contribution exceeds 100 Pg y
-1...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
James M. Vose; Katherine J. Elliott; D.W. Johnson
Year:
1995
Keywords:
Source:
Advances In Soil Science: Soils and Global Change, p. 199-208
Dr. Biswell's influence on the development of prescribed burning in California
Prescribed burning in California has evolved from the original practices of the Native Americans, through years of experimentation and controversy, to finally become an accepted ecosystem management activity. When Dr. Harold Biswell arrived in California, he began research on improving game range by using prescribed fires and on understory burning in ponderosa pine (...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Jan W.\t van Wagtendonk
Year:
1995
Keywords:
Source:
In: Weise, David R.; Martin, Robert E., technical coordinators. The Biswell symposium: fire issues and solutions in urban interface and wildland ecosystems; February 15-17, 1994; Walnut Creek, California. Gen. Tech. Rep. PSW-GTR-158. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 11-16
Technology transfer for ecosystem management
In many parts of our country today, forest health and sustainability are important management questions. Some individuals and groups have observed that during the past century the emphasis in American forest management on commodity production has, in many cases, contributed to a unhealthy forest landscape. For example, the forestland in eastern Oregon has considerably...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Tim O'Keefe
Year:
1995
Keywords:
Source:
In: Chavez, Deborah J., tech. coord. Proceedings of the Second Symposium on Social Aspects and Recreation Research, February 23-25, 1994, San Diego, California. Gen. Tech. Rep PSW-GTR-156. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture: 23-26
Effects of thinnings on growth and yield in natural
Pinus arizonica
and
Pinus durangensis
stands in the El Largo-Madera region in Chihuahua State
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...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Oscar Estrada Murrieta; Luis A. Dominguez Pereda; Marcelo Zepeda Bautista
Year:
1995
Keywords:
Pinus arizonica, Pinus durangensis, thinning, silviculture, forest management, growth, yields, Mexico
Source:
In: L. G. Eskew, comp. Forest health through silviculture: proceedings of the 1995 National Silviculture Workshop, Mescalero, New Mexico, May 8-11, 1995. Gen. Tech. Rep. RM-GTR-267. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station: 167-171
Using silviculture to improve health in northeastern conifer and eastern hardwood forests
The traditional role of silviculture was to manipulate forest vegetation to provide wood and related forest products for humanity's benefit over a long period. Silviculturists soon noticed that such manipulation influenced other components of the ecosystem. In particular, insects and diseases responded dramatically to silvicultural practices-both positively and...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Kurt W. Gottschalk; Kurt W. Gottschalk
Year:
1995
Keywords:
forest health, silviculture, coniferous forests, hardwoods, ecosystems, forest pests, plant diseases
Source:
In: L. G. Eskew, comp. Forest health through silviculture: proceedings of the 1995 National Silviculture Workshop, Mescalero, New Mexico, May 8-11, 1995. Gen. Tech. Rep. RM-GTR-267. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station: 219-226
Silvicultural practices (commercial thinning) are influencing the health of natural pine stands in eastern California
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. After 15 years, mortality, primarily from bark beetles and annosus root disease, was reduced...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
Gary O. Fiddler; Dennis R. Hart; Philip M. McDonald; Susan J. Frankel
Year:
1995
Keywords:
Pinus ponderosa, forest management, silviculture, forest health, thinning, stand density, California
Source:
In: L.G. Eskew, comp. Forest health through silviculture: proceedings of the 1995 National Silviculture Workshop, Mescalero, New Mexico, May 8-11, 1995. Gen. Tech. Rep. RM-GTR-267. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station: 208-212
Effects of subsoiling on woody roots of Jeffrey pines on two different soil types
This study was initiated to determine the long term effects of subsoiling to alleviate soil compaction due to use of mechanized harvesting equipment in forest stands. Two stands having a predominance of 90 to 110 year old Jeffrey pines (
Pinus jeffreyi
Grev. & Balf.) were selected for this investigation. Each stand was located on the Milford...
https://www.fs.usda.gov/treesearch/search?keywords=%22Pinus%20ponderosa%22&f%5B0%5D=year%3A%221995%22
Author(s):
W.J. Otrosina; Shi-Jean S. Sung
Year:
1995
Keywords:
Source:
In Booklet of Abstracts, Dynamics of Physiological Processes in Woody Roots, Ithaca, NY.
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