Forest Management Commons^™

Field Maps 1994, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Historical field map scans (1994) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.

Comparative Gas-Exchange In Leaves Of Intact And Clipped, Natural And Planted Cherrybark Oak (Quercus Pagoda Raf.) Seedlings, Brian Roy Lockhart, John D. Hodges

Journal of the Arkansas Academy of Science

Gas-exchange measurements, including CO2 -exchange rate (net photosynthesis), stomatal conductance, and transpiration, were conducted on intact and clipped cherrybark oak (Quercus pagoda Raf.) seedlings growing in the field and in a nursery bed. Seedlings in the field, released from midstory and understory woody competition, showed significant increases in gas-exchange compared to non-released seedlings due to increases in light levels reaching seedlings. Concurrently, little difference occurred in the CO2 -exchange rate between intact and clipped seedlings in the released treatment although clipped seedlings maintained a consistently greater rate of stomatal conductance. In order to reduce the high variability of light levels …

Activity Patterns And Habitat Use Of Northern Bobwhite Females In 2 Grazing Systems, R. Montague Whiting Jr., Denise L. Sloan

Faculty Publications

During spring and summer of 1985 and 1986, we investigated activity patterns and habitat use of female northern bobwhite (Colinus virginianus) on 2 sites in south Texas. One site had been subjected to a short duration grazing (SDG) system and the other to a continuous grazing (CG) system. Nineteen females were radio-tagged in 1985 and 28 in 1986. Rainfall was above average in 1985 and below average in 1986; as a result, herbaceous ground cover was more dense in 1985 than in 1986. Due to extensive fencing, 58% of the SDG cell was within 25 m of a mowed roadside, …

Bulletin 4274 - Tree Planting On The High Rainfall Coastal Plain, Don Bennett, Richard George

Bulletins 4000 -

Careful planning can mean the difference between the success or failure of a tree planting program . Healthy , well-e stablished trees stand a better chance of survival, grow faster and are more resistant to insect attack. The need for time-consuming watering in summer is also eliminated.

The high rainfall coastal plain extends from Perth to Busselton and inland to the Darling Scarp. It receives about 800 to 1000 mm annual rainfall.

Site preparation is ideally started in summer. For a winter planting, decide before March where to plant, which varieties and how many trees to plant. Early planning allows …

Protecting Biological Diversity: A Major Challenge For Minnesota Forestry In The 1990s, David C. Zumeta

Journal of the Minnesota Academy of Science

One of the most significant challenges to Minnesota forestry in the 1990s will be responding to growing public concern about relationships between forestry in Minnesota and global and national environmental issues (e.g., protecting biological diversity, tropical deforestation). Influential citizens and public interest groups are asking penetrating questions about the effects of forest management and timber harvesting on biological diversity, and about parallels between tropical deforestation and timber harvesting in Minnesota.

This article examines some of the relationships between Minnesota forestry and biological diversity. It also describes what is being done, and what needs to be done, to protect biological diversity. …

Maine's Endangered And Threatened Plants, Maine State Planning Office

Maine Collection

Maine's Endangered and Threatened Plants

Executive Department, Maine State Planning Office, Critical Areas Program, 1990.

Spruce Budworm In Maine: The End Of The Outbreak: Biological Conditions In 1986, 1987, And 1988, And A Look At The Future, Henry Trial Jr.

Maine Collection

Spruce Budworm in Maine: The End of the Outbreak: Biological Conditions in 1986, 1987, and 1988, and a Look at the Future

by Henry Trial, Jr., Insect and Disease Management Division

Technical Report No. 28

Maine Forest Service, Dept. of Conservation, Augusta, Maine, October 1989.

Contents: Introduction / Biological Conditions in 1986, 1987, and 1988 / Control Activities / Forest Conditions-1986 to 1988 and a Look at the Future / Spray Operations and Forecast of Conditions in Quebec and New Brunswick, 1986-1988 / The Future of Budworm in the Region and in Maine / List of Figures / List of …

Douglas-Fir Beetle (Dendroctonus Pseudotsugae Hopkins, Coleoptera : Scolytidae) Brood Production On Douglas-Fir Defoliated By Western Spruce Budworm (Choristoneura Occidentalis Freeman, Lepidoptera : Tortricidae) In Logan Canyon, Utah, S E. Fredricks, M J. Jenkins

The Bark Beetles, Fuels, and Fire Bibliography

Douglas-fir beetle brood production was studied on Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) trees defoliated by the western spruce budworm between 1983 and 1985. Tallies were made of the number of attacks, total length and number of egg galleries, number of eggs deposited, number of larval tunnels, number of pupal chambers, and number of emerging beetles (per female and per unit area). Data analysis showed no significant differences among the three years studied. The number of emerging beetles per female parent was 0.59, and emergence per 90 cm2 was 2.32 beetles. Egg, larval, and pupal survivals were 47.5%, 30.0%, and 15.5%, …

Lodgepole Pine Vigor, Regeneration, And Infestation By Mountain Pine Beetle Following Partial Cutting On The Shoshone National Forest, Wyoming, Gene D. Amman, Gene D. Lessard, Lynn A. Rasmussen, Curtis G. O'Neil

The Bark Beetles, Fuels, and Fire Bibliography

Lodgepole pine stands were thinned in the Shoshone National Forest of northwestern Wyoming in 1979 and 1980 using different forms of partial cutting. Average losses of trees 5 inches diameter at breast height and larger to mountain pine beetles during the 5 years following thinning ranged from less than 1 percent in spaced thinnings to 7.4 percent in the 12-inch diameter limit cut, compared to 26.5 percent in check stands. Residual trees increased radial growth significantly, but change in growth efficiency is slow. Regeneration 5 years after thinning ranged between 1,160 and 3,560 seedlings per acre, with pine being favored …

Clearcutting As A Management Practice In Maine Forests, Irland Group

Maine Collection

Clearcutting As A Management Practice in Maine Forests : Report to the Maine Department of Conservation, Forests for the Future Program.

by The Irland Group

Maine Department of Conservation, Augusta, Maine. 1988.

Contents:( Part I ) Introduction / What is Clearcutting? / Environmental Effects of Clearcutting / Conclusions / Recommendations

Contents:(Part II) Introduction / Public Policy / Definition / Spruce-Fir Siviculture / Northern Hardwood Silviculture / White Pine Silviculture / Aspen-Birch Silviculture / Regeneration / The Brush Stage / Artificial Regeneration / Budworm / Aesthetics / Water Resources / Wildlife / Nutrients and Soil / Naturalistic Silviculture / Logging / …

Field Maps 1988, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Historical field map scans (1988) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.

Proceedings : A Forest Based Economy - Carrying A Tradition Into The Future, Blaine House Conference On Forestry (December 6-7, 1984)

Maine Collection

Proceedings : A Forest Based Economy - Carrying A Tradition Into the Future

Blaine House Conference on Forestry (December 6-7, 1984)

Department of Conservation, State House Station 22, Augusta, Maine 04333, August 1986.

Contents: Table of Contents / Letter of Transmittal / The Forest 2020--Visions Of A Sustainable Forest / Forestry Resurvey: What Does It Say? How Can We Use It? / Can We Improve Maine's Timber Supply? / Atmospheric Deposition And Forests Of The Northeast / A National Perspective: What Is Maine's Competitive Niche? / The Future of Hardwood Markets / The Future of Softwood Markets / The State …

Mountain Pine Beetle Outbreaks In The Rocky Mountains: Regulators Of Primary Productivity?, W. H. Romme, D. H. Knight, J. B. Yavitt

The Bark Beetles, Fuels, and Fire Bibliography

We consider the hypothesis that mountain pine beetles function as cybernetic regulators of primary productivity in ecosystems of lodgepole pine forest through their selective killing of dominant trees and the subsequent redistribution of resources. Following a recent major beetle outbreak in Yellowstone and Grand Teton national parks, surviving trees did grow significantly faster (P < .1); wood production was redistributed among canopy, subcanopy, and understory trees; and annual wood production per hectare usually returned to pre-attack levels or exceeded them within 10-15 yr. However, reconstructions of annual wood production over the last 70-80 yr indicate that the beetle outbreak did not reduce the variation in productivity; rather, the beetles introduced more variation than would have existed in their absence. Hence, our results do not support the hypothesis that the beetles function as cybernetic regulators (in the strict sense). Nevertheless, the beetle-pine system that we studied shows great resilience, and the effects of beetles on primary productivity do not appear to be as severe as conventional wisdom maintains. Annual wood production per hectare returned quickly to previous levels in the stands we studied, and associated ecological changes can be considered generally benign or even beneficial.

Mountain Pine Beetle Outbreaks In The Rocky Mountains: Effects On Fuels And Fire In Lodgepole Pine Forest (Abstract), W H. Romme, D H. Knight, J Fedders

The Bark Beetles, Fuels, and Fire Bibliography

Changes in fuels were studied in northwestern Wyoming by sampling a sequence of ten stands that had been heavily damaged by beetles from 1 to 20 years earlier. Leaf litter increased only slightly (3-6%) for six years, and large woody fuels (which contribute much less to flammability) increased steadily and substantially (up to 16 x) for at least 20 years. Other fuel categories did not change significantly. While flammability may be increased during the first year or two after a beetle infestation because dead leaves are still on the trees, the risk of destructive fire during years 2-20 may be …

Promoting Soft Mast For Wildlife In Intensively Managed Forests, John J. Stransky, John H. Roese

Faculty Publications

The fruit of woody plants is important as food for wildlife (Martin et al. 1951, Lay 1965). The relation of fruit production to southern forest stand conditions has been explored in only a few studies. Fruit production is greater in forest clearings than in closed forest stands (Lay 1966, Elalls and Alcaniz 1968). In Georgia slash pine (Pinus elliottii) plantations, fruit yields of shrubs are greatest in 4-yeas-old stands, and soil disturbance in site preparation greatly reduces fruit yields (Johnson and Landers 1978). Total fruit production is greatest in 5-year-old bedded loblolly pine (P. taeda) plantations …

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.

Internal Filters : Prospects For Uv-Acclimation In Higher Plants, Martyn M. Caldwell, Ronald Robberecht, Stephan D. Flint

Green Canyon Environmental Research Area, Logan Utah

Wavelength-selective absorption of solar radiation within plant leaves allows penetration of visible radiation to the chloroplats, while removing much of the damaging ultraviolet-B radiation. Flavonoids are important in this wavelength-selective absorption. Induction of flavonoid synthesis by solar radiation, and specifically by UV-B radiation, is discussed as this relates to the potential acclimation of plants to enhanced solar UV-B radiation that would result from stratospheric ozone reduction.

Preliminary Critical Area Survey Of The Appalachian Trail In Maine, Critical Areas Program (Maine)

Maine Collection

Preliminary Critical Area Survey of the Appalachian Trail in Maine.
Critical Areas Program - Natural Resource Planning Division - Maine State Planning Office (June 1981).

Vegetation Responses To Prescribed Burning In A Mixed-Conifer Woodland, Cuyamaca Rancho State Park, California, Bradford D. Martin

Loma Linda University Electronic Theses, Dissertations & Projects

This study reports the results of light intensity prescribed burning on the vegetation of 3 jeffrey pine-black oak woodland sites in Cuyamaca Rancho State Park, California. The 1.2 ha, 85 ha, and 6 ha burn plots were measured for tree and shrub density and basal area 6 months, 1% years, and 2 years following burning for the 3 sites respectively. Each burn site measured was compared against equivalent unburned control plots to help assess the effects of the burning. Density of saplings, seedlings, and herbaceous vegetation was also determined for the woodland understories. Dominance and relative dominance of herbaceous ground …

Field Maps 1981, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Historical field map scans (1981) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.

Maps were digitized in 2022.

Herbaceous Production In Burned-Cut Burned-Uncut And Control Areas Of A Chamaecyparis Thyoides (L.) Bsp (Cupressaceae) Stand In The Great Dismal Swamp, Caroline Elisabeth Mckinley

Biological Sciences Theses & Dissertations

The herbaceous layer of an Atlantic white cedar (Chamaecyparis thyoides) stand in the Great Dismal Swamp was sampled to estimate the productivity of two burned areas and a control area. The herbaceous vegetation was sampled along three transects utilizing the harvest method and productivity values were estimated using peak biomass values for each individual species. The burned-cut area had the highest productivity (3623 kg ha^-l yr^-1) and was characterized by species of the Asteraceae, Poaceae, and Cyperaceae. The burned-uncut area had a productivity value of 1636 kg ha^-1 yr^-1 with similar species of the Asteraceae …

Optical Management Of The Spruce-Fir Forest Against The Spruce Budworm, Gari B. Simon

Senior Scholar Papers

Proper management of the softwood forest-budworm ecosystem is vital to the future prosperity of Maine. In choosing a management strategy, economic as well as ecological effects must be considered. This paper constructs a computer simulation model of the budworm-forest ecosystem in order to better evaluate effects of different types of forest management. The budworm-softwood forest ecosystem is a highly complicated system involving three dynamic population systems: the host tree population, the budworm population and the foliage population. Each system is modeled, by regression analysis, to observations collected by entomologists over the past half century. There are large gaps of knowledge …

Spruce Budworm In Maine, 1910-1976: Infestations And Control, David Weed

Maine Collection

Spruce Budworm in Maine, 1910-1976: Infestations and Control

compiled by David Weed, Maine Forest Service, Maine Department of Conservation, 1977.

Contents: I. Introduction, II. Infestation Chronology, III. Defoliation 1910-18 to 1976, IV. Spraying History, V. Mothflight Data, VI. Aircraft Employed, VII. Aircraft: Photo Essay

Wildlife Habitats In Managed Rangelands-- The Great Basin Of Southeastern Oregon, Wayne Bowers, Bill Hosford, Art Oakley, Carl Bond

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

All land management activities on managed rangelands will have some impact(s) on fish habitat; those in the riparian zone will have the greatest impact(s). Native trout populations in the Great Basin of southeastern Oregon exhibit predictable responses to alterations in their habitats; optimum production of native trout is therefore achievable through careful habitat management.

Forestry Bulletin No. 22: Silviculture Of Southern Upland Hardwoods, Laurence C. Walker

Forestry Bulletins No. 1-25, 1957-1972

"Upland hardwood types occur throughout the forests of the southern United States. Sometimes deciduous species intermingle with pines to form mixed conifer-broadleaf types; other times hardwood types are interspersed with pine types; depending upon soil, physiography, past land use, and fire."

Forest Fuel Accumulation -- A Growing Problem, Marvin Dodge

The Bark Beetles, Fuels, and Fire Bibliography

Discusses the problem caused by accumulation of forest fuels in the wild-land forests of the western USA under the policy of total fire protection pursued there for many years, and emphasizes the need to find economical and practical ways of reducing fuel hazards in these forests, especially by means of prescribed burning under conditions in which low-intensity fires can be achieved.

Forestry Bulletin No. 21: Diseases Of Forest Trees And Forest Products, A. F. Verrall

Forestry Bulletins No. 1-25, 1957-1972

This bulletin covers the roles and types of diseases and fungi found in forest trees and products. It also discusses principles of disease prevention and control.

Forestry Bulletin No. 20: A Short History Of Forest Conservation In Texas, 1880-1940, Robert S. Maxwell, James W. Martin

Forestry Bulletins No. 1-25, 1957-1972

"This short history of the development of forest conservation in Texas is intended primarily for the general reader. The study has concentrated on the early history of the conservation movement, dating from the beginning of commercial lumbering in the state, approximately 1880, to about 1940 and World War II."

Fire Weather : A Guide For Application Of Meteorological Information To Forest Fire Control Operations, Mark J. Schroeder, Charles C. Buck

The Bark Beetles, Fuels, and Fire Bibliography

Weather is never static. It is always dynamic. Its interpretation is an art. The art of applying complex information about weather to the equally complex task of wildland fire control cannot be acquired easily-especially not by the mere reading of a book. The environment is in control in wildland firefighting. Free-burning fires are literally nourished by weather elements, atmospheric components, and atmospheric motion. Outguessing mother nature in order to win control is an extremely difficult task. We need to soothe her with understanding. We have attempted to present information in such a way that your daily and seasonal awareness of …

Stem Canker Disease Of Red Flowering Gums, W P. Cass Smith

Journal of the Department of Agriculture, Western Australia, Series 4

Of the many native Eucalypts in Western Australia few are more attractive than the red flowering gum.

It flowers generally during the Christmas period and provides a beautiful display for several weeks, with blossoms of several colours including dark red, scarlet, orange and pink.