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Forests

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Articles 61 - 80 of 80

Full-Text Articles in Forest Sciences

Using Glyphosate Herbicide In Converting Aspen To Conifers, Donald A. Perala Jan 1985

Using Glyphosate Herbicide In Converting Aspen To Conifers, Donald A. Perala

Aspen Bibliography

No abstract provided.


Survey Of Aspen Stands Treated With Herbicides In The Western United States, R.O. Harniss, D.L. Bartos Jan 1985

Survey Of Aspen Stands Treated With Herbicides In The Western United States, R.O. Harniss, D.L. Bartos

Aspen Bibliography

No abstract provided.


Wildlife In Aspen: Ecology And Management In The Western United States, Norbert V. Debyle Jan 1985

Wildlife In Aspen: Ecology And Management In The Western United States, Norbert V. Debyle

Aspen Bibliography

Aspen forests provide important habitat for many species of wildlife (Gullion 1977b), especially in the West (see the appendix to this chapter). In the coniferous forests of the interior West, aspen groves may be the only source of abundant forage; in the grasslands they may be the sole source of cover. A primary value of the aspen ecosystem in the West during the past century has been production of forage for both wildlife and domestic livestock (see the FORAGE chapter).


Management For Esthetics And Recreation, Forage, Water, And Wildlife, Norbert V. Debyle Jan 1985

Management For Esthetics And Recreation, Forage, Water, And Wildlife, Norbert V. Debyle

Aspen Bibliography

No abstract provided.


Coniferous Forest Habitat Types Of Northern Utah, Ronald L. Mauk, Jan A. Henderson Jan 1984

Coniferous Forest Habitat Types Of Northern Utah, Ronald L. Mauk, Jan A. Henderson

The Bark Beetles, Fuels, and Fire Bibliography

Data from >1100 plots in coniferous forests of northern Utah and adjacent areas of Idaho and Wyoming were used to identify 8 climax series and 36 habitat types. Descriptions are given of each type with notes on potential productivity for timber and characteristics of site, climate and surface soil.


Mississippi’S Softwood Timber Potential: Private Nonindustrial Influences, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees Jan 1984

Mississippi’S Softwood Timber Potential: Private Nonindustrial Influences, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees

Faculty Publications

Mississippi's long-run softwood timber potential was estimated for three input situations under a common set of economic and biological assumptions. Economic goals for sustained pine production were estimated using the computer program GASPLY with no restrictions, with private nonindustrial upland hardwoods excluded from type conversion and with private nonindustrial lands excluded from active forest management altogether. Estimated price-quantity equilibria ranged from $301 per thousand cubic feet (MCF) and 966 million cubic feet (MMCF) in the unrestricted case, to $1,226/MCF and 479 MMCF in the example with passive private nonindustrial management. Widely diffel'ing potential goals for pine product-ion highlight the degree …


Mixed-Hardwood Thinning Optimization, Steven H. Bullard Jan 1983

Mixed-Hardwood Thinning Optimization, Steven H. Bullard

Faculty Publications

Upland hardwood forest types are .by far the most widespread in the United States. Stands of the oak-hickory forest type alone include 109 million acres, 23 percent of the Nation's commercial timberland (U.S. Forest Service 1982) . Many even-aged upland hardwood stands developed on nonindustrial private lands through hardwood invasion after pine stands were harvested. In 1973, half of the hardwood timber in the South was determined to be on upland sites which formerly supported pine stands (Murphy and Knight 1974). Many nonindustrial private landowners passively permit the biologically better adapted hardwoods to increase after the harvest of pines. These …


Rates Of Forest Floor Decomposition And Nutrient Turnover In Aspen, Pine, And Spruce Stands On Two Soils, Donald A. Perala, D.H. Alban Jan 1982

Rates Of Forest Floor Decomposition And Nutrient Turnover In Aspen, Pine, And Spruce Stands On Two Soils, Donald A. Perala, D.H. Alban

Aspen Bibliography

No abstract provided.


Response Of Suppressed Conifer Seedlings To Release From An Aspen-Pine Overstorey, A.B. Berry Jan 1982

Response Of Suppressed Conifer Seedlings To Release From An Aspen-Pine Overstorey, A.B. Berry

Aspen Bibliography

No abstract provided.


Stand Age Analysis Of Timber On Mississippi’S Private Nonindustrial Forests, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees Jan 1981

Stand Age Analysis Of Timber On Mississippi’S Private Nonindustrial Forests, Steven H. Bullard, G. H. Weaver, Willem W. S. Van Hees

Faculty Publications

Most of the current pine timber acreage in Mississippi developed through the reversion of large acreages of agricultural cropland to forestry. Now that cropland retirement has ceased, management practices must provide· for pine regeneration on existing forest lands. Harvesting practices that remove higher-valued pine timber from private, nonindustrial pine lands have created large acreages of poorly stocked, low quality hardwood stands.


An Approach To Functionalizing Key Environmental Factors Forage Production In Rocky Mountain Aspen Populus-Tremuloides Stands, J.P. Roise, D.R. Betters, B.M. Kent Jan 1981

An Approach To Functionalizing Key Environmental Factors Forage Production In Rocky Mountain Aspen Populus-Tremuloides Stands, J.P. Roise, D.R. Betters, B.M. Kent

Aspen Bibliography

No abstract provided.


Forest Vegetation Of The Routt National Forest In Northwestern Colorado: A Habitat Type Classification, George R. Hoffman, Robert R. Alexander Jan 1980

Forest Vegetation Of The Routt National Forest In Northwestern Colorado: A Habitat Type Classification, George R. Hoffman, Robert R. Alexander

Aspen Bibliography

No abstract provided.


Grindstone Flat And Big Flat Exclosures: A 41-Year Record Of Changes In Clearcut Aspen Communities, Walter F. Mueggler, D.L. Bartos Jan 1977

Grindstone Flat And Big Flat Exclosures: A 41-Year Record Of Changes In Clearcut Aspen Communities, Walter F. Mueggler, D.L. Bartos

Aspen Bibliography

No abstract provided.


Litter Fall And Chemical Cycling In An Aspen (Populus Tremuloides) Woodland Ecosystem In The Canadian Rockies, J.B. Cragg, A. Carter, C. Leischner, E.B. Peterson, G.N. Sykes Jan 1977

Litter Fall And Chemical Cycling In An Aspen (Populus Tremuloides) Woodland Ecosystem In The Canadian Rockies, J.B. Cragg, A. Carter, C. Leischner, E.B. Peterson, G.N. Sykes

Aspen Bibliography

No abstract provided.


Upland Aspen/Birch And Black Spruce Stands And Their Litter And Soil Properties In Interior Alaska, J.L. Troth, F.J. Deneke, L.M. Brown Jan 1976

Upland Aspen/Birch And Black Spruce Stands And Their Litter And Soil Properties In Interior Alaska, J.L. Troth, F.J. Deneke, L.M. Brown

Aspen Bibliography

No abstract provided.


Studies On The Causes Of Tree Distribution In A Forest Type In The Dismal Swamp National Wildlife Refuge, Thomas A. Janszen Apr 1974

Studies On The Causes Of Tree Distribution In A Forest Type In The Dismal Swamp National Wildlife Refuge, Thomas A. Janszen

Biological Sciences Theses & Dissertations

Vegetational composition and environmental parameters were analyzed in a forest type of the Dismal Swamp. A 0.5 ha forest stand was divided into 200 5 x 5 meter contiguous quadrats and the tree size classes were precisely mapped. Fifty soil samples were analyzed for texture, pH, and major nutrients. A topographic map was constructed with precision to 0.01 ft. Analysis of variance tests showed non-randomness to exist in soil texture and nutrient content while homogeneity tests showed non-randomness in distribution of some woody species. Factor analysis indicated no significant correlations between soil quality, topography, and woody species. Findings indicate that …


Forage Production And Utilization In A Sprayed Aspen Forest In Alberta, J.E. Hilton, A.W. Bailey Jan 1974

Forage Production And Utilization In A Sprayed Aspen Forest In Alberta, J.E. Hilton, A.W. Bailey

Aspen Bibliography

One of the primary concerns of many cattle ranchers in the aspen parkland area of Alberta and Saskatchewan is to increase forage production through the replacement of woody species by usable forage plants.


Cattle Use Of A Sprayed Aspen Parkland Range, J.E. Hilton, A.W. Bailey Jan 1972

Cattle Use Of A Sprayed Aspen Parkland Range, J.E. Hilton, A.W. Bailey

Aspen Bibliography

Aspen parkland range in central Alberta that had been treated with a herbicide two years prior to the study had greater grazing use of the sprayed forest vegetation than did the untreated forest.


Altitudinal Variation Of Chlorophyll Concentration And Reflectance Of The Bark Of Populus Tremuloides, W.W. Covington Jan 1972

Altitudinal Variation Of Chlorophyll Concentration And Reflectance Of The Bark Of Populus Tremuloides, W.W. Covington

Aspen Bibliography

No abstract provided.


Forest Condition In Kentucky And Tennessee, Department Of Library Special Collections Jan 1913

Forest Condition In Kentucky And Tennessee, Department Of Library Special Collections

Research Collections

No abstract provided.