Life Sciences Commons^™

Effectiveness Of Delayed Brush Cutting And Herbicide Treatments For Vegetation Control In A Seven-Year-Old Jack Pine Plantation In Northwestern Ontario, Canada, Azim U. Mallik, F. Wayne Bell, Yanli Gong

Aspen Bibliography

Efficacy of three conifer release treatments, i) single application of glyphosate (Vision™) herbicide, ii) multiple application of glyphosate herbicide, and iii) motor-manual brush cutting for controlling competing plants, particularly trembling aspen (Populus tremuloides), pin cherry (Prunus pensylvanica), green alder (Alnus viridis spp. crispa), and beaked hazel (Corylus cornuta spp. cornuta), was studied in a seven-year-old jack pine (Pinus banksiana) plantation in northwestern Ontario, Canada. The single and multiple glyphosate applications were equally effective in controlling trembling aspen and pin cherry, causing over 90% stem mortality. The brushsaw treatment caused an initial decrease followed by an increase in stem density of …

Natural Fire Regime: A Guide For Sustainable Management Of The Canadian Boreal Forest, Yves Bergeron, Alain Leduc, Brian D. Harvey, Sylvie Gauthier

Aspen Bibliography

The combination of certain features of fire disturbance, notably fire frequency, size and severity, may be used to characterize the disturbance regime in any region of the boreal forest. As some consequences of fire resemble the effects of industrial forest harvesting, conventional forest management is often considered as a disturbance that has effects similar to those of natural disturbances. Although the analogy between forest management and fire disturbance in boreal ecosystems has some merit, it is important to recognise that it also has its limitations. Short fire cycles generally described for boreal ecosystems do not appear to be universal; rather, …

Using Gis For Forest Recreation Planning On The Longleaf Ridge Special Area Of The Angelina National Forest, East Texas, I-Kuai Hung

Faculty Publications

Longleaf Ridge Special Area (LRSA) located in the Angelina National Forest is the westernmost example of a longleaf pine savanna community. Ecologically, the area is one of the most diverse communities in Texas. Due to its size, abundant natural and historical resources, numerous outdoor recreation opportunities exist. In this study, GIS was used to develop a forest recreation concept plan on LRSA. Most of the geospatial data came from public entities. Information for demand analysis on forest recreation was obtained from the 2000 National Survey on Recreation and the Environment database. U.S. Forest Service recreation fee envelope data were analyzed …

Pre-Logging Liana Cutting Reduces Liana Regeneration In Logging Gaps In The Eastern Brazilian Amazon, Jeffrey J. Gerwing, Christopher Uhl

Environmental Science and Management Faculty Publications and Presentations

The cutting of all lianas prior to logging is a reduced-impact logging technique that is predicted to reduce liana proliferation in logging gaps. This study compares liana abundance and species composition in gaps created during conventional and reduced-impact logging in a forest of the eastern Brazilian Amazon. Logging treatments were conducted in side-by-side plots. Shortly following logging, 50-m² plots were located in the approximate centers of four single treefall and four multiple treefall gaps in each logging area. Six years following logging, there were ∼40% fewer climbing lianas in reduced-impact gaps than in conventional logging gaps. In both logging …

Meeting Minutes, October 12th, 2002, National Smokejumper Association Board Of Directors

National Smokejumper Association Meeting Minutes

Agenda: Pledge of Allegiance was omitted.; Meeting Minutes.; Introduced new director Doug Houston.; Reports.; Treasurer's Report.; Membership Report.; Magazine Report.; Web Report.; Trails Report.; Data Base Report.; Memorial Plaques.; Museum Report.; Next National Reunion.; Public Affairs Officer Position Created.; Folklife Festival Explained.; The 100th anniversary of the Forest service.; We should form an archives committee.; Everyone in attendance at a board meeting should be assigned to a committee.; Those attending board meetings should have name badges Long-Range Plan Revised.; New VP Named.; Nyquest Chief Trash Man in Missoula.; Rohrbach Suggests Lobbying for Additional Smokejumpers.; Twiss Elected.; Proceed with the fabrication …

Impact Of The Agricultural Sector On The Arkansas Economy, H. L. Goodwin Jr., Jennie Popp, Wayne Miller, Gina Vickery, Z. Clayton-Niederman

Research Reports and Research Bulletins

Agriculture historically has been one of the primary sectors of the Arkansas economy. Agriculture is defined as the sum of agricultural, forestry, and fisheries production and processing activities unless otherwise specified. Not only does agriculture contribute to the economy through direct agricultural production and added value processing, it also plays an important role through the economy’s other sectors. Utilizing data from the United States Bureau of Economic Affairs and the State of Arkansas, the economic impact of agriculture on the Arkansas economy was estimated for the latest year available, 1999. Gross State Product (GSP) information for Arkansas was compared with …

Red-Cockaded Woodpecker, U.S. Fish & Wildlife Service, Ralph Costa

Faculty Publications

No abstract provided.

Chrysomela Scripta, Plagiodera Versicolora (Coleoptera: Chrysomelidae), And Trichoplusia Ni (Lepidoptera: Noctuidae) Track Specific Leaf Developmental Stages, D.A. Wait, J.S. Coleman, C.G. Jones

Aspen Bibliography

It is well recognized that host-specialized folivores prefer to feed on young in comparison to old leaves. However, the capacity of young leaf feeders to track specific leaf developmental stages has not been clearly demonstrated. Using three insect folivores and two plant species, we show that nitrogen (N) fertilization changes leaf development and that herbivores track these changes in leaf development. Nicotiana tabacum L. and Populus deltoides Bartram were fertilized at two and three rates of N addition, respectively. Plants with high rates of N supply had faster growth, greater leaf area, and faster leaf initiation rates than plants receiving …

Understory Species Patterns And Diversity In Old-Growth And Managed Northern Hardwood Forests, Robert M. Scheller, David J. Mladenoff

Environmental Science and Management Faculty Publications and Presentations

Forest management can significantly affect both the diversity and spatial patterning of understory vegetation. However, few studies have considered both diversity and spatial patterning at a stand scale. Our objective was to evaluate the effects of forest management on understory plant communities in northern hardwood forests and assess the processes governing differences in species composition, diversity, and spatial patterns. We sampled understory vegetation (all speciestall) and percentage of light transmission levels in three forest types in 12 mesic northern hardwood stands in northern Wisconsin and the Upper Peninsula of Michigan, USA: old-growth, undisturbed forests; even-aged forests resulting from clearcut logging …

The Dandy Scroll, Fall 2002, University Of Maine Pulp And Paper Foundation

General University of Maine Publications

The Fall 2002 issue of The Dandy Scroll newsletter produced by the University of Maine Pulp and Paper Foundation.

Effects Of Prescribed Burning On Vegetation And Fuel Loading In Three East Texas State Parks, S. Rideout, Brian P. Oswald

Faculty Publications

-This study was conducted to evaluate the initial effectiveness of prescribed burning in the ecological restoration of forests within selected parks in east Texas. Twenty-four permanent plots were installed to monitor fuel loads, overstory, sapling, seedling, shrub and herbaceous layers within bum and control units of Mission Tejas, Tyler and Village Creek state parks. Measurements were taken during the summers of 1999 and 2000. Prescribed burning was conducted between these sampling periods in early spring 2ooo. Results indicated that the current applications of prescribed burning do not significantly influence vegetation or fuels. Sustained drought, prior management practices and imposed local …

An Ecological Basis For Managing Giant Sequoia Ecosystems, Douglas D. Piirto, Robert R. Rogers

Natural Resources Management and Environmental Sciences

A strategy for management of giant sequoia groves is formulated using a conceptual framework for ecosystem management recently developed by Region Five of the USDA Forest Service. The framework includes physical, biological, and social dimensions. Environmental indicators and reference variability for key ecosystem elements are discussed in this paper. The selected ecosystem elements include: 1) attitudes, beliefs, and values; 2) economics and subsistence; 3) stream channel morphology; 4) sediment; 5) water; 6) fire; 7) organic debris; and 8) vegetation mosaic. Recommendations are made for the attributes of environmental indicators that characterize these elements. These elements and associated indicators will define …

G02-1452-A Landscaping Around Established Trees, Kathleen Pauley Cue, Scott Josiah

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide examines how tree roots grow and how they can be damaged by landscaping activities, and suggests ways to prevent such damage.

Meeting Minutes, June 22nd, 2002, National Smokejumper Association Board Of Directors

National Smokejumper Association Meeting Minutes

Agenda: Old Business; Treasurer's Report.; Membership.; Merchandise.; Magazine.; Board of Directors Election.; NSA Website.; Trails Program.; Smokejumper Database.; Changing of the Guard.; New Business; Trade Mark.; Termination of Agreements.; Regional NSA Gatherings.; CPS Reunion.; Memorial Funds.; NSA Committees.; BOD Name Tags.; Plaque for Deceased Jumpers.; Meeting Location Strategy.; 2003 Meeting Schedule.; Folk Life Festival 2005 on the Washington Mall.; Smokejumper History Book.; Next Meeting.; Attachments.;

Meeting Minutes, March 23rd, 2002, National Smokejumper Association Board Of Directors

National Smokejumper Association Meeting Minutes

Agenda: Treasurer's Report.; Membership Report.; Merchandise Report.; Magazine Report.; Website Report.; History Book Report.; Trails Program Report.; Scanning NSA Documents Report.; Trademark The New NSA Logo.; Long-Range Plan.; Museum of Mountain Flying Report.; Telephone service at the Missoula NSA office.; Videos Report.; Common Stock Account.; Database Update.; Suggested Changes to Rookie Membership Plan.; Missoula Reunion Report.; Evergreen Aviation Museum Report.; University of Montana Archives Report.; Folk Life Festival Opportunity.; Evergreen Aviation Museum Report.; Ascension of officers.; Board of Directors Positions.; Next Board of Directors and Executive Committee Meetings.;

Biotechnical Streambank Protection: The Use Of Plants To Stabilize Streambanks, Gary W. Wells

Agroforestry Notes (USDA-NAC)

Biotechnical streambank protection utilizes living plant materials to reinforce soil and stabilize slopes. Plants can be used as the primary structural component or in combination with inert materials like rock, concrete, and steel to help stabilize streambanks. Many terms have been used to describe the engineering use of plant materials for slope stabilization (Figure 1). The Natural Resources Conservation Service (NRCS) uses the term Soil Bioengineering to describe the use of living plant material for soil reinforcement, hydraulic drains, barriers to earth movement, and hydraulic pumps or wicks. The underlying concept for all terms is the use of plants to …

Planning Biotechnical Streambank Protection, Gary W. Wells

Agroforestry Notes (USDA-NAC)

This note is designed to help planners determine the appropriateness of biotechnical alternatives for streambank stabilization. Biotechnical approaches utilize plants as the primary structural components to provide an alternative or complement to concrete, rock and other materials. Even though various biotechnical techniques have been developed to utilize the ability of plants to stabilize slopes, there are situations where these techniques are not an appropriate choice.

Windbreaks: An Agroforestry Practice, Bruce Wright, Kimberly Stuhr

Agroforestry Notes (USDA-NAC)

Purpose of Note:

• Introduce the concept of windbreaks and their benefits

• Describe different applications of windbreaks

• Discuss basic design and planning considerations

Pb1463 Tree Crops For Marginal Farmland - Christmas Trees, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Growing Christmas trees can be a profitable use for marginally productive farmland. Though more labor-intensive than other tree crops, a Christmas tree crop can return a profit in as little as five to seven years. In addition, Christmas tree production requires little up-front capital investment. Most production operations require only hand tools or common farm machinery.

Most industry experts predict that Christmas tree markets will remain stable. However, there is a surplus of Christmas trees in many regions of the United States. To be competitive, growers must efficiently produce high-quality trees of the species that consumers demand.

Artificial Christmas trees …

Pb1692 Wood Identification For Hardwood And Softwood Species Native To Tennessee, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

This publication provides information on how to identify wood of several species common to Tennessee by using a hand-magnifying lens. Included in this publication are a wood identification key for some common Tennessee species, a list of key specie characteristics and a list of companies that sell wood identification sample sets.

Tennessee has a rich variety of tree species, and the wood produced from each of these has unique structure, physical and mechanical properties. The differences in wood structure and properties allow for the manufacture of wood-based products with many different appearances and uses. Since wood is a popular and …

Introduction To Forestry Investment Analysis: Part Ii. Taxes, Inflation, And Other Issues, Thomas J. Straka, Steven H. Bullard, Mark R. Dubois

Faculty Publications

Part I of this article covered the basics of compounding and discounting. You were introduced to forestry investment analysis. However, several complications were not discussed. What about inflation, taxes, and risk? Part II addresses basic complications. It also includes more detailed forestry investment analyses.

Monitoring Herpetofauna In A Managed Forest Landscape: Effects Of Habitat Types And Census Techniques, Travis J. Ryan, Thomas Philippi, Yale A. Leiden, Michael E. Dorcas, T. Bently Wigley, J. Whitfield Gibbons

Scholarship and Professional Work - LAS

We surveyed the herpetofaunal (amphibian and reptile) communities inhabiting five types of habitat on a managed landscape. We conducted monthly surveys during 1997 in four replicate plots of each habitat type using several different methods of collection. Communities of the two wetland habitats (bottomland wetlands and isolated upland wetlands) were clearly dissimilar from the three terrestrial communities (recent clearcut, pine plantation, and mixed pine–hardwood forest). Among the three terrestrial habitats, the total herpetofaunal communities were dissimilar (P<0.10), although neither faunal constituent group alone (amphibians and squamate reptiles) varied significantly with regard to habitat. Three survey techniques used in the terrestrial habitats were not equally effective in that they resulted in the collection of different subsets of the total herpetofauna. The drift fence technique revealed the presence of more species and individuals in every habitat and was the only one to detect species dissimilarity among habitats. Nonetheless, coverboards contributed to measures of abundance and revealed species not detected by other techniques. We suggest that a combination of census techniques be used when surveying and monitoring herpetofaunal communities in order to maximize the detection of species.

Sp595 Timber Theft! How To Avoid It And What To Do If It Happens, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Timber theft, or timber trespass, is common throughout the Southeast. Each year numerous private forest landowners discover their timber has been stolen or inadvertently harvested.

Timber theft carries a civil penalty in Tennessee and often results in a complete financial loss to the owner. The value of stolen timber can be written off against income tax as an involuntary conversion. The deductible loss, however, is limited to the tax basis of the timber. If caught, the trespasser can be required to pay damages double or triple the current market value of the timber, according to whether the timber was negligently …

A Survival Model For Unthinned Loblolly Pine Plantations That Incorporates Non-Planted Tree Competition, Site Quality, And Incidence Of Fusiform Rust, Y. J. Lee, Dean W. Coble

Articles

Future biomass yields are functionally related to the number of trees surviving at a given age. A stand level survival model was developed that incorporates competition of non-planted trees, site quality, and the incidence of fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme). The model consists of a system of two equations, one of which represents the number of surviving trees infected by fusiform rust while the other represents the number of trees not infected by fusiform rust. Data from unthinned loblolly pine (Pinus taeda L.) plantations in East Texas were used to fit and evaluate the …

Forest Clearcutting And Site-Preparation On A Saline Soil In East Texas: Impacts On Water Quality, Matthew W. Mcbroom, Mingteh Chang, Alexander K. Sayok

Faculty Publications

Three 0.02 hectare plot-watersheds were installed on a saline soil in the Davy Crockett National Forest near Apple Springs, Texas. Each plot was installed with an H-flume, FW-1 automatic water level recorder, Coshocton N-1 runoff sampler, and two storage tanks. One watershed was undisturbed forested and served a control, one was clearcut without any site-preparation, and the third was clearcut, V-blade sheared, windrowed, and vegetation regrowth was prevented for the first 2 years. A total of 274 storms were recorded during the four-year study period, 1989-1992. Average annual sediment losses for the study period were 55, 197, and 1,530 kilograms …

First-Year Survival And Growth Of Bareroot And Container Water Oak And Willow Oak Seedlings Grown At Different Levels Of Mineral Nutrition, Hans Michael Williams, Matthew Stroupe

Faculty Publications

Bareroot and container water oak (Quercus nigra) and willow oak (Quercus phellos) seedlings were treated with 3 different levels of nitrogen (N) mineral fertilizer applied during the growing season in the nursery. Comparisons were made between species, N treatments, and stock-types for seedling morphology, first-year survival and height growth, and seedling water relations. Water oak seedlings were shorter, heavier, and more first-order lateral roots than the willow oak seedlings. The N fertilizer treatments did not have a statistically significant effect on seedling morphology. Bareroot seedlings were taller, had greater root-collar diameters, and were heavier than the container seedlings. The seedlings …

Weed Control And Seedling Performance Using Oust, Velpar, And Velpar+Oust Impregnated Diammonium Phosphate, Jimmie L. Yeiser

Faculty Publications

Technology that combines herbicide and fertilizer into one treatment thereby reducing application costs while enhancing growth is needed. Four clean and well-prepared sites in TX, MS, and AL were tested. Study objectives were to evaluate the effectiveness of diammonium phosphate (DAP) impregnated with Oust, Velpar, or Velpar+Oust for herbaceous weed control and newly planted loblolly pine (Pinus taeda L.) seedling growth. In 1999, treatments were applied early post weed-emergence to 60percent bare ground in East TX. Impregnated DAP provided about 38percent less competitor control than separate liquid and fertilizer applications at similar rates. Best seedling survival and growth resulted from …

Growth Response From Herbicide, Prescribed Fire And Fertilizer Treatments In Midrotational Loblolly Pine: First-Year Results, Mary Michelle Barnett, Sandra Rideout, Brian P. Oswald, Kenneth W. Farrish, Hans Michael Williams

Faculty Publications

This study was initiated to determine growth response resulting from the application of prescribed fire and herbicide, with and without fertilizatio.n. In. southeast Texas, herbicide, prescribed fire and fertilizer treatments were applied in m1d:rotat1onal loblolly pine plantations 1.5 years after thinning. Five replications were established at. each of two study sites located on similar soils, aspects and slopes. Half of each replication. was randomly selected and fertilized. Eight treatment plots were established 1n e~ch replication with one of each of the four treatments of control, herbicide, fire, and herb1c1de/flre randomly applied to fertilized plots and one of each of the …

Potential Allelopathic Interference By The Exotic Chinese Tallow Tree (Sapium Sebiferum) (Abstract), Warren C. Conway

Faculty Publications

The Chinese tallow tree (Sapium sebiferum) was introduced into the southeastern

United States in late 1800s and has rapidly naturalized throughout the region’s coastal ecosystems. Because tallow forms monotypic woodlands, we hypothesized that allelopathic interference is a mechanism by which tallow maintains and expands its presence. Laboratory experiments were performed using black willow (Salix nigra), baldcypress (Taxodium distichum) and tallow, as test species, to examine the hypothesis that aqueous tallow extracts inhibit seed germination and seedling root growth, shoot growth and mass. Extracts were prepared from tallow litter, woodland soil from under tallow trees …

A Survival Model For Unthinned Loblolly Pine Plantations That Incorporates Non-Planted Tree Competition, Site Quality, And Incidence Of Fusiform Rust, Dean W. Coble, Young-Jin Lee

Faculty Publications

Future biomass yields are functionally related to the number of trees surviving at a given age. A stand level survival model was developed that incorporates competition of non-planted trees, site quality, and the incidence of fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme). The model consists of a system of two equations, one of which represents the number of surviving trees infected by fusiform rust while the other represents the number of trees not infected by fusiform rust. Data from unthinned loblolly pine (Pinus taeda L.) plantations in East Texas were used to fit …