Treesearch - scientific articles written or published by the U.S. Forest Service

Show/Hide Search Form

Keywords (All fields) or Title:

Last Name of Author:

Date Range:

FS Series:

Subscribe to R&D Publications recently added to Treesearch - RSS feed More RSS options

Displaying 1 - 20 of 22

Pages

Records Per Page:

Sort By:

A review of the siricid woodwasps and their Ibaliid parasitoids (Hymenoptera: Siricidae, Ibaliidae) in the Eastern United States, with emphasis on the Mid-Atlantic Region

Keys are presented for the five genera and 15 species of adult Siricidae and one genus and two species of their parasitoids of the family Ibaliidae that occur in or may be adventive in the Eastern United States. Sircid larvae are wood borers in conifers and broadleafed trees. Notes on their biology, fungal symbionts, distributions, and host associations are given. Data...

https://www.fs.usda.gov/treesearch/search?keywords=%22review%22&%3Bamp%3Bf%5B0%5D=author_facet%3A%22Porth%2C%20Laurie%22&%3Bf%5B0%5D=author_facet%3A%22Mattson%2C%20William%22&f%5B0%5D=author_facet%3A%22Vaillant%2C%20Nicole%22&f%5B1%5D=author_facet%3A%22Larson%2C%20John%20T.%22&f%5B2%5D=author_facet%3A%22Mitchell%2C%20Dana%22&f%5B3%5D=author_facet%3A%22Robin-Abbott%2C%20Molly%22&f%5B4%5D=author_facet%3A%22Schiff%2C%20Nathan%22&f%5B5%5D=author_facet%3A%22Schoettle%2C%20Anna%22&f%5B6%5D=author_facet%3A%22Dietenberger%2C%20Mark%22

Author(s):

David R. Smith; Nathan M. Schiff

Year:

2002

Keywords:

Source:

Proceedings of the Entomological Society of Washington. 104 (1): 174-194

Midstory reduction treatments with a Woodgator T-5

Many stands in the Southern U.S. have developed an increased amount of non-commercial midstory and understory components. Managers may not be able to prescribe burn these stands, due to smoke management concerns or risk of fire climbing into the crowns of the overstory trees. A variety of machines have been designed to mulch, shred, or chop standing vegetation to clear...

Author(s):

Dana Mitchell; Bob Rummer

Year:

2001

Keywords:

Source:

Forest Operations Review Tech. Rel. 01-R-15; Forest Operations Review: (3) 2: 27-28.

Fuel-reduction treatments with a gyrotrac GT-25

Land managers in urban areas are turning to mulching equipment as a tool for managing their timberlands. Prescribed burning to reduce fire risk may not be an option, due to smoke management concerns and the level of current fuel loading.

Author(s):

Dana Mitchell

Year:

2005

Keywords:

Source:

Forest Operations Review, Vol. 7(2): 21-22

Forest operations and woody biomass logistics to improve efficiency, value, and sustainability

This paper reviews the most recent work conducted by scientists and engineers of the Forest Service of the US Department of Agriculture (USDA) in the areas of forest operations and woody biomass logistics, with an emphasis on feedstock supply for emerging bioenergy, biofuels, and bioproducts applications. This work is presented in the context of previous...

Author(s):

Nathaniel Anderson; Dana Mitchell

Year:

2016

Keywords:

biomass, feedstocks, harvesting, logistics, operations, processing

Source:

Bioenergy Research. 9: 518-533.

Extended working hours: Impacts on workers

Some logging business owners are trying to manage their equipment assets by increasing the scheduled machine hours. The intent is to maximize the total tons produced by a set of equipment. This practice is referred to as multi-shifting, double-shifting, or extended working hours. One area often overlooked is the impact that working non-traditional hours can have on...

Author(s):

D. Mitchell; T. Gallagher

Year:

2010

Keywords:

Source:

Forest Operations Review, Summer, 2010 12(3):24-26

Improving genetic conservation of tree species

The aim of this workshop breakout group session was to review significant gaps within each of three major themes (In-situ Conservation, Ex-situ Conservation, and Restoration of Species and Ecosystems) and to identify actionable solutions to move genetic conservation efforts forward. In order to identify solutions and action items for the tree conservation community,...

Author(s):

Pam Allenstein; Jennifer DeWoody; David Gwaze; Valerie Hipkins; Gary Man; Anna Schoettle; Kirsty Shaw; Murphy Westwood

Year:

2017

Keywords:

Source:

In: Sniezko, Richard A.; Man, Gary; Hipkins, Valerie; Woeste, Keith; Gwaze, David; Kliejunas, John T.; McTeague, Brianna A., tech. cords. 2017. Gene conservation of tree species—banking on the future. Proceedings of a workshop. Gen. Tech. Rep. PNW-GTR-963. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 5-11.

Perspectives on woody biomass fuel value and specifications in Alabama

Pulp and paper mills in Alabama buy woody biomass but the specifications required by the mills vary and are not widely known. Some characteristics of woody biomass that are often included in mill specifications include size, species, ash and moisture content. These characteristics are briefly reviewed in reference to how they impact the energy value, physical handling...

Author(s):

Dana Mitchell

Year:

2006

Keywords:

biomass, logging residue, mill specifications, energy, hog fuel

Source:

ASABE Paper No. 068050. St. Joseph, Mich.: ASABE.

Midstory reduction treatments with a Shinn SC-1

Fire control and exclusion have led to an increase in the non-commercial midstory and understory components of forest stands on the Croatan National Forest near the coast of North Carolina. The growth of this vegetation has created a fire risk in the wildland-urban interface. The use of a mechanical fuel management treatment is being explored in areas where fire...

Author(s):

Dana Mitchell; Bob Rummer

Year:

1999

Keywords:

Source:

Forest Operations Review Tech. Rel. 99-R-29; American Pulpwood Association. 2 p

Cone calorimeter evaluation of wood products

The Forest Products Laboratory uses the cone calorimeter for the initial evaluation of the flammability of untreated and fire retardant treated wood products. The results of various studies are reviewed using a model presented at the 12th Annual BBC Conference on Flame Retardancy. The model uses data from the cone calorimeter to provide measures of fire growth...

Author(s):

Robert H. White; Mark A. Dietenberger

Year:

2004

Keywords:

Cone calorimetry, flammability, fire retardants

Source:

Proceedings of the Conference on Recent Advances in Flame Retardancy of Polymeric Materials : held in Stamford, CT, June 6-9, 2004. Volume XV, Applications, research and industrial development, markets. Norwalk, CT : Business Communications Company, Inc., c2004: Pages 331-342

Methods, Chapter 4

We present an up-to-date review of current knowledge relating nitrogen (N) inputs to ecological effects, from published literature, reports, and some recent unpublished studies. Our goal is to summarize research on ecosystems across the United States. We include N gradient, long-term, and fertilizer studies; for fertilizer studies, we focus on those with low N...

Author(s):

L.H. Pardo; E.A. Lilleskov; L.H. Geiser; M.J. Robin-Abbott

Year:

2011

Keywords:

Source:

In: Pardo, L.H.; Robin-Abbott, M.J.; Driscoll, C.T., eds. Assessment of Nitrogen deposition effects and empirical critical loads of Nitrogen for ecoregions of the United States. Gen. Tech. Rep. NRS-80. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 25-35.

Improvements to the Understanding of the Fire Performance of Wood over the Past 30 Years-A Tribute to Robert Hawthorne White

Dr. Robert Hawthorne White had a 31 year career researching the fire performance of wood and wood composites at the USDA Forest Products Laboratory. Over his career, Dr. White made substantial contributions to codes, standards, and regulations pertaining to the design of wood structures. This review article summarizes Robert?s major accomplishments as a tribute to his...

Author(s):

Samuel L. Zelinka; Mark A. Dietenberger; Laura E. Hasburgh; Keith J. Bourne; Charles Boardman

Year:

2015

Keywords:

Wood, Char, Fire Resistive Coatings, Fire Resistance

Source:

Wood Design Focus. Volume 25, Number 3, 2015; pp. 3-7.

Processing woody debris biomass for co-milling with pulverized coal

The USDA, Forest Service, Forest Products Lab funds several grants each year for the purpose of studying woody biomass utilization. One selected project proposed removing small diameter stems and unmerchantable woody material from National Forest lands and delivering it to a coal-fired power plant in Alabama for energy conversion. The Alabama Power Company...

Author(s):

Dana Mitchell; Bob Rummer

Year:

2007

Keywords:

biomass, forest engineering, harvesting, logging, chipper, grinder

Source:

In: ASABE 2007 Annual International MEeting, Minneapolis, Minnesota. 17-20 June 2007. 6 p.

Reaction-to-fire testing and modeling for wood products

In this review we primarily discuss our use of the oxygen consumption calorimeter (ASTM E1354 for cone calorimeter and ISO9705 for room/corner tests) and fire growth modeling to evaluate treated wood products. With recent development towards performance-based building codes, new methodology requires engineering calculations of various fire growth scenarios. The initial...

Author(s):

Mark A. Dietenberger; Robert H. White

Year:

2001

Keywords:

Wood products, fire testing, modeling

Source:

Twelfth annual BCC Conference on Flame Retardancy : May 21-23, 2001, Stamford, CT. Norwalk, CT : Business Communications Co., 2001: Pages 54-69

Modified precision-husky progrind H-3045 for chipping biomass

A specific size of whole tree chip was needed to co-mill wood chips with coal. The specifications are stringent because chips must be mixed with coal, as opposed to a co-firing process. In co-firing, two raw products are conveyed separately to a boiler. In co-milling, such as at Alabama Power's Plant Gadsden, the chip and coal mix must pass through a series of...

Author(s):

Dana Mitchell; Fernando Seixas; John Klepac

Year:

2008

Keywords:

Source:

Forest Operations Review, Vol. 10(4): 1-5

Linking stakeholder research needs and the federal data quality act: a case study of an endangered forest shrub in the southeastern Unitd States

The need for knowledge, ranging from development of new products or processes to the effects of specific actions on the environment, is greater now than at any point in the past. The greater need for research has generated stakeholder involvement in the research process. As a result, all facets of research, from planning through...

Author(s):

Brian Roy Lockhart; Emile S. Gardiner; Theodor D. Leininger; Kristina F. Connor; Margaret S. Devall; Paul B. Hamel; Tracy Hawkins; Nathan M. Schiff; A. Dan Wilson

Year:

2009

Keywords:

Source:

Forest Policy and Economics, Vol. 11: 539-547

Conservation genetics of high elevation five-needle white pines

Conservation genetics examines the biophysical factors influencing genetic processes and uses that information to conserve and maintain the evolutionary potential of species and populations. Here we review published and unpublished literature on the conservation genetics of seven North American high-elevation five-needle pines. Although these species are widely...

Author(s):

Andrew D. Bower; Sierra C. McLane; Andrew Eckert; Stacy Jorgensen; Anna Schoettle; Sally Aitken

Year:

2011

Keywords:

high elevation five-needle pines, threats, whitebark, Pinus albicaulis, limber, Pinus flexilis, southwestern white, Pinus strobiformis, foxtail, Pinus balfouriana, Great Basin bristlecone, Pinus longaeva, Rocky Mountain bristlecone pine, Pinus aristata

Source:

In: Keane, Robert E.; Tomback, Diana F.; Murray, Michael P.; Smith, Cyndi M., eds. The future of high-elevation, five-needle white pines in Western North America: Proceedings of the High Five Symposium. 28-30 June 2010; Missoula, MT. Proceedings RMRS-P-63. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 98-117.

Harvesting systems and costs for short rotation poplar

The objective of this review is to compare the cost of coppice and longer rotation poplar harvesting technology. Harvesting technology for short rotation poplar has evolved over the years to address both coppice harvest and single-stem harvest systems. Two potential approaches for coppice harvesting are modified forage harvesters and modified mulcher-balers. Both of...

Author(s):

B. Rummer; D. Mitchell

Year:

2013

Keywords:

coppice, costs, felling, swath harvester

Source:

Factors that affect fuel consumption in logging systems

Fuel consumption is an important aspect of the efficiency of timber harvesting. Since loggers are paid based on the weight of wood they produce, it is important to note how many gallons of fuel it takes to produce one ton of wood. An extensive literature review was conducted to evaluate different harvesting systems and the amount of fuel they consumed per unit of wood...

Author(s):

Jonathan Kenney; Thomas Gallagher; Matthew Smidt; Dana Mitchell; Timothy and McDonald

Year:

2014

Keywords:

fuel consumption, logging systems, fuel costs, logging efficiency, timber harvesting

Source:

In: Proceedings of the Global Harvesting Technology

Assessing landscape vulnerability to wildfire in the USA

Wildfire is an ever present, natural process shaping landscapes. Having the ability to accurately measure and predict wildfire occurrence and impacts to ecosystem goods and services, both retrospectively and prospectively, is critical for adaptive management of landscapes. Landscape vulnerability is a concept widely utilized in the ecosystem management literature that...

Author(s):

Nicole M. Vaillant; Crystal A. Kolden; Alistair M. S. Smith

Year:

2016

Keywords:

ecosystem goods and services, wildfire occurrence, fire effects, resiliency

Source:

Current Forestry Reports. 2(3): 201-213

Leaf life span and the mobility of "non-mobile" mineral nutrients - the case of boron in conifers

Nutrient conservation is considered important for the adaptation of plants to infertile environments. The importance of leaf life spans in controlling mean residence time of nutrients in plants has usually been analyzed in relation to nutrients that can be retranslocated within the plant. Longer leaf life spans increase the mean residence time of all mineral...

Author(s):

Pedro J. Aphalo; Anna W. Schoettle; Tarja Lehto

Year:

2002

Keywords:

boron, conifers, leaf life span, model, needle age, nutrient mobility, toxicity

Source:

Silva Fennica. 36(3): 671-680.

Pages

Total Publications in Treesearch: 53,230

Show/Hide Search Form

Pages

A review of the siricid woodwasps and their Ibaliid parasitoids (Hymenoptera: Siricidae, Ibaliidae) in the Eastern United States, with emphasis on the Mid-Atlantic Region

Midstory reduction treatments with a Woodgator T-5

Fuel-reduction treatments with a gyrotrac GT-25

Forest operations and woody biomass logistics to improve efficiency, value, and sustainability

Extended working hours: Impacts on workers

Improving genetic conservation of tree species

Perspectives on woody biomass fuel value and specifications in Alabama

Midstory reduction treatments with a Shinn SC-1

Cone calorimeter evaluation of wood products

Methods, Chapter 4

Improvements to the Understanding of the Fire Performance of Wood over the Past 30 Years-A Tribute to Robert Hawthorne White

Processing woody debris biomass for co-milling with pulverized coal

Reaction-to-fire testing and modeling for wood products

Modified precision-husky progrind H-3045 for chipping biomass

Linking stakeholder research needs and the federal data quality act: a case study of an endangered forest shrub in the southeastern Unitd States

Conservation genetics of high elevation five-needle white pines

Harvesting systems and costs for short rotation poplar

Factors that affect fuel consumption in logging systems

Assessing landscape vulnerability to wildfire in the USA

Leaf life span and the mobility of "non-mobile" mineral nutrients - the case of boron in conifers

Pages

Chief Financial Officer

Office of the Chief

Business Operations

National Forest System

Research and Development

State and Private Forestry