Forest Sciences Commons^™

Smokejumper Obituary: Watson, Robert Lee (Missoula 1951), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

A Comparison Of Producer Gas, Biochar, And Activated Carbon From Two Distributed Scale Thermochemical Conversion Systems Used To Process Forest Biomass, Nathaniel Anderson, J. Greg Jones, Deborah Page-Dumroese, Daniel Mccollum, Stephen Baker, Daniel Loeffler, Woodam Chung

Forest Management Faculty Publications

Thermochemical biomass conversion systems have the potential to produce heat, power, fuels and other products from forest biomass at distributed scales that meet the needs of some forest industry facilities. However, many of these systems have not been deployed in this sector and the products they produce from forest biomass have not been adequately described or characterized with regards to chemical properties, possible uses, and markets. This paper characterizes the producer gas, biochar, and activated carbon of a 700 kg h⁻¹ prototype gasification system and a 225 kg h⁻¹ pyrolysis system used to process coniferous sawmill and forest …

Smokejumper Obituary: Brennan, Wesley William (Missoula 1947), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Forestsim Model Of Impacts Of Smallholder Dynamics: Forested Landscapes Of The Upper Peninsula Of Michigan, Audrey L. Mayer, Mark Rouleau

College of Forest Resources and Environmental Science Publications

Many forested landscapes in the United States contain a large number of small private landowners (smallholders). The individual decisions of these smallholders can collectively have a large impact on the structure, composition, and connectivity of forests. While models have been developed to try to understand this large-scale collective impact, few models have incorporated extensive information from individual decision-making. Here we introduce an agent-based model, infused with sociological data from smallholders, overlaid on a GIS layer to represent individual smallholders, and used to simulate the impact of thousands of harvesting decisions. Our preliminary results suggest that certain smallholder characteristics (such as …

Legality, Criminality And Agency Beyond The State: Forest Governance, Illegal Logging And Associated Trade, Lorraine Elliott

Transnational Business Governance Interactions Working Papers

This paper examines the disconnect between the literature on and practice of legality verification (LV) in the forest sector and what would seem to be a logical extension into the literature on and responses to forest crime and, more specifically, transnational criminality associated with trade in illegally logged timber. The apparently logical overlap between these two areas of endeavour arises because both are dealing with aspects of supply chains or chains of custody involving raw timber, forest products or timber products more generally. The disconnect, I suggest here, arises because of a lack of 'joined up thinking' between the two …

Public Procurement And Private Certification: The Case Of The Uk Tpp, Alex Latu

Transnational Business Governance Interactions Working Papers

Forestry certification schemes have been considered the paradigmatic instance of a new form of private governance that may challenge state-centered authority and public policy-making. Although governments and intergovernmental organizations are certainly not the schemes' "main architects", they are more involved in the overall effects of forestry certification than is often emphasized, notably through procurement policies. This paper examines a particularly interaction of private and public governance organizations, in the realm of forestry certification, among the UK government's Timber Procurement Policy (TPP), a governmental demand-side policy tool, and two major certification schemes — the Forest Stewardship Council (FSC) and the Program …

Effect Of Application Timing On Efficacy Of Site Preparation Treatments Using Chopper® Gen 2™, Andrew W. Ezell, Jimmie L. Yeiser, D. K. Lauer, H. E. Quicke

Faculty Publications

Chopper® GEN2™ is a new imazapyr product for use in forestry site preparation. A single treatment (32 ounces of Chopper® GEN2™ per acre) was applied at three timings on three sites (Louisiana, Mississippi, and Virginia) to test the effect of application timing on treatment efficacy. Hardwood control was excellent for all applications. Pine growth varied by site, but all treatments resulted in excellent pine growth. Pine stem volume was 5 to 10 times greater in treated plots as compared to untreated plots.

Stereo Photo Series For Estimating Natural Fuels In The Netherlands Volume 2: Dunes Region, Brian P. Oswald

Faculty Publications

The photo series are collections of photos and associated field data representing a region of The Netherlands. Volume I includes vegetation types in the Veluwe Region, including Heather, Grasslands, Beech/Hardwoods, Scots Pine, and Douglas-fir. Volume 2 includes dune vegetation types on the island of Texel, plus a site on the mainland near Haarlam. For each vegetation type, sites were sampled with varying fuel loads. The description of the sites consists of a wide-angle site photo, supplemented with field data on the various fuel loads and vegetative layers. The photo series is an important ecological tool to assess landscapes by analyzing …

Evaluating Tree Height Using Pictometry® Hyperspatial Imagery, Daniel Unger, David Kulhavy, Matthew A. Wade

Faculty Publications

This study evaluated the use of Pictometry® hyperspatial 4-inch (10.2 centimeters) multispectral imagery to estimate height of baldcypress trees on the campus of Stephen F. Austin State University (SFASU), Nacogdoches, Texas. Actual tree heights of 60 baldcypress trees measured with a telescopic height pole were compared to Pictometry® estimated tree height. Linear correlation coefficients (r) and coefficient of determinations (R2) between actual tree height and Pictometry® estimated tree height for all 60 tress, and the shortest 30 and tallest 30 trees, were calculated. A paired t-test (alpha = 0.05) was calculated for all 60 tress, and the shortest 30 and …

The Status Of White Oak (Quercus Alba) Trees At The Gordon Natural Area, Chester County, Pennsylvania, Rachel Stern, Gregory D. Turner, Gerard D. Hertel

White Oak Distribution Study Documents

No abstract provided.

Late-Successional And Old-Growth Forests In The Northeastern United States: Structure, Dynamics, And Prospects For Restoration., Mark J. Ducey, John S. Gunn, Andrew A. Whitman

Natural Resources & the Environment

Abstract

Restoration of old-growth forest structure is an emerging silvicultural goal, especially in those regions where old-growth abundance falls below the historic range of variability. However, longitudinal studies of old-growth dynamics that can inform silvicultural and policy options are few. We analyzed the change in structure, including stand density, diameter distribution, and the abundance of large live, standing dead, and downed dead trees on 58 late-successional and old-growth plots in Maine, USA, and compared these to regional data from the U.S. Forest Inventory and Analysis program. Structural dynamics on the late-successional plots reflected orderly change associated with density-dependent growth and …

Forest Development And Carbon Dynamics After Mountain Pine Beetle Outbreaks, E. Matthew Hansen

The Bark Beetles, Fuels, and Fire Bibliography

Mountain pine beetles periodically infest pine forests in western North America, killing many or most overstory pine stems. The surviving secondary stand structure, along with recruited seedlings, will form the future canopy. Thus, even-aged pine stands become multiaged and multistoried. The species composition of affected stands will depend on the presence of nonpines and outbreak severity, among other factors, and can range from continued dominance by pines to hastened conversion to more shade-tolerant species. The loss of mature host trees results in reductions of ecosystem carbon productivity. The surviving and recruited stems, however, grow more quickly in response to the …

A National Approach For Integrating Wildfire Simulation Modeling Into Wildland Urban Interface Risk Assessments Within The United States, Jessica R. Haas, David E. Calkin, Matthew P. Thompson

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

Ongoing human development into fire-prone areas contributes to increasing wildfire risk to human life. It is critically important, therefore, to have the ability to characterize wildfire risk to populated places, and to identify geographic areas with relatively high risk. A fundamental component of wildfire risk analysis is establishing the likelihood of wildfire occurrence and interaction with social and ecological values. A variety of fire modeling systems exist that can provide spatially resolved estimates of wildfire likelihood, which when coupled with maps of values-at-risk enable probabilistic exposure analysis. With this study we demonstrate the feasibility and utility of pairing burn probabilities …

Timber Talk, Vol. 51, No. 1, February 1, 2013

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Hardwood Lumber Market History—Green; 50th Anniversary ; NFS Launches New Website; 4 Nebraska Wood Products Exchange; 4 2012 Tax Tips for Forest Landowners...5 Attention Timber & Log Buyers; 5 Nebraska Forest - 2010; Nebraska Forestry Spotlight.; The Trading Post; Generation Check — Do You Remember?; Timber Sales

Timber Talk, Vol. 51, No. 4, November 1, 2013

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Checking, Shaking and Honeycombing; End-Coating Logs and Lumber Makes “Cents” (Or Dollars!); Nebraska Forestry Spotligh; The Trading Post; The Biggest Cause of Our “Environmental” Problems?; Railroad Ties: Another Use for Hardwood Logs

Timber Talk, Vol. 51, No. 3, September 1, 2013

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Timber Stumpage Prices; Nebraska Timber and Log Buyers Survey; Band Saw Blades For Green Wood; Illegal Logging Crackdown in Central and South America; Coming to Terms With Terms; International Trade in Wood Chips Seeing Steady Increases; Nebraska Forestry Spotlight; The Trading Post; How to Save Money Wtih a Wood Stove; Timber Sales

Biomass Fuel-Briquettes And Improved Stoves In Dinsho, Ethiopia, Brian W. Barbre

Dissertations, Master's Theses and Master's Reports - Open

This report is a study of the development and implementation of a biomass fuel briquette and improved stove project in the highlands of Ethiopia. The primary goal of the project was to determine if the introduction of an improved stove would affect the acceptability of fuel briquettes. The secondary goal was to establish briquette and improved stove manufacturing associations in Dinsho and Rira towns. Two problems encountered during the project were cultural differences in material valuation, and difficulty working with local administrative frameworks and multi-organization communication difficulties. Both briquettes and improved stoves received positive feedback from respondents. Survey data indicated …

Local Use And Management Of Tasba (Senna Obtusifolia) In The Traditional Food System Of Sanguere Paul, North Cameroon, Mary E. Snyder

Dissertations, Master's Theses and Master's Reports - Open

The purpose of this study is to examine the importance of the wild edible weed tasba (Senna obtusifolia) in Sanguéré Paul, Cameroon by examining how households use and manage the plant. This study found that local management of tasba is minimal compared to other traditional vegetables. Tasba was collected most frequently from en brousse or the communal, fallowed land which is often too degraded for traditional field crops to grow. Women subsistence farmers were closely involved with tasba as they are the ones responsible for food production within the family. Socioeconomic differences between women affects how they manage tasba and …

Beech Bark Disease Distribution And Resistance In Michigan And Fungal Endophyte Ecology Of Resistant And Susceptible Beech (Fagus Grandifolia Ehrh.), Rachel E. Griesmer-Zakhar

Dissertations, Master's Theses and Master's Reports - Open

Beech bark disease (BBD), a non-native association of the fungal pathogen Neonectria faginata and the beech scale insect Cryptococcus fagisuga, has dramatically affected American beech within North American forests. To monitor the spread and effects of BBD in Michigan, a network of forest health monitoring plots was established in 2001 following the disease discovery in Ludington State Park (Mason County). Forest health canopy condition and basic forestry measurements including basal area were reassessed on beech trees in these plots in 2011 and 2012. The influence of bark-inhabiting fungal endophytes on BBD resistance was investigated by collecting cambium tissue from …

Empirical Guidelines For Forest Management Decision Support Systems Based On The Past Experiences Of The Expert’S Community, A. F. Marques, A. Ficko, A. Kangas, C. Rosset, F. Ferriti, J. Rasinmaki, T. Packalen, Sean N. Gordon

Institute for Sustainable Solutions Publications and Presentations

Aim of the study: Decision support systems for forest management (FMDSS) have been developed world wide to account for a broad range of forest ecosystems, management goals and organizational frameworks (e.g. the wiki page of the FORSYS project reports 62 existing FMDSSs from 23 countries). The need to enhance the collaboration among this diverse community of developers and users fostered the rise of new group communication processes that could capture useful knowledge from past experiences in order to efficiently provide it to new FMDSS development efforts. Material and methods: This paper presents and tests an exploratory process aiming to identify …