Forest Sciences Commons^™

Evaluating The Effectiveness Of Wood Shreds On Post-Fire Erosion, Peter R. Robichaud, Randy B. Foltz, Charles G. Showers, James S. Groenier, Rory Sternke, Louise E. Ashmun, Robert E. Brown, Peter Jordan

Joint Fire Science Program Research Project Reports

Agricultural straw mulching is a commonly used post-fire hillslope erosion control treatment that is aerially applied by helicopter. While widely used and reasonably effective at reducing erosion, agricultural straw is not native to the forest environment. There is a growing consensus among Burned Area Emergency Response (BAER) teams that mulch made from native forest material would be preferable to agricultural straw. Wood shred mulch made from post-fire road hazard trees is an alternative to agricultural straw. An optimized blend of sizes of wood shreds was effective in reducing sediment yields in both indoor rainfall simulation and outdoor field experiments. Several …

Identification Of Necessary Conditions For Arctic Transport Of Smoke From United States Fires, Narasimhan K. Larkin, Jennifer L. Dewinter, Tara M. Strand, Steven G. Brown, Sean M. Brown, Sean M. Raffuse, Jonathan Callahan, Kenneth J. Craig, Robert C. Solomon, Hilary R. Hafner

Joint Fire Science Program Research Project Reports

The deposition of black carbon (BC), a dark absorbing aerosol, is a significant contributor to observed warming trends in the Arctic (Hansen and Nazarenko, 2004; Jacobson et al., 2007). Biomass burning outside of the Arctic, including wildland prescribed fires, is a major potential source of Arctic BC. Therefore, limiting or eliminating spring prescribed burning has been suggested to Congress as a BC reduction technique (e.g., Zender, 2007). However, there are large uncertainties in the current estimates of the sources, source regions, and transport and transformation pathways of BC transported to the Arctic region (Shindell et al., 2008; Hegg et al., …

Towards Sustainable Communities And Human Security: Challenges Of The College Of Public Affairs And Development University Of The Philippines Los Baños, Agnes C. Rola, Josefina T. Dizon, Maria Ana T. Quimbo, Wilfredo B. Carada

Journal of Public Affairs and Development

The College of Public Affairs (CPAf) in the University of the Philippines Los Baños (UPLB) evolved as a unit of the University with the mandate to raise the bar of applied social science scholarship by developing transdisciplinary methods in the resolution of public issues such as food security, land reform and land use, governance, population, and education. The creation of CPAf in 1998 was prompted “by the need to attune academic programs in the pursuit of UP’s mission to promote nationalism and development in the face of profound changes occurring in the global environment.” In 2011, it was renamed as …

Soil C And N Changes With Afforestation Of Grasslands Across Gradients Of Precipitation And Plantation Age, Sean T. Berthrong, Gervasio Pinero, Esteban G. Jobbagy, Robert B. Jackson

Scholarship and Professional Work - LAS

Afforestation, the conversion of unforested lands to forests, is a tool for sequestering anthropogenic carbon dioxide into plant biomass. However, in addition to altering biomass, afforestation can have substantial effects on soil organic carbon (SOC) pools, some of which have much longer turnover times than plant biomass. An increasing body of evidence suggests that the effect of afforestation on SOC may depend on mean annual precipitation (MAP). The goal of this study was to test how labile and bulk pools of SOC and total soil nitrogen (TN) change with afforestation across a rainfall gradient of 600–1500 mm in the Rio …

Agricultural Greenhouse Gas Emissions, Meredith Fairbanks, David Bowran, Geraldine Pasqual

Bulletins 4000 -

Agriculture contributes 15.5 per cent of Australia’s emissions (Figure 1), largely due to methane, from ruminant livestock digestion, nitrous oxide from soils and carbon dioxide from fossil fuel use (Australian National Greenhouse Accounts 2011; ABARES 2011).

This bulletin identifies current ways to reduce greenhouse gas emissions from Australian agriculture.

Effect Of Nitrogen Fertilization On Net Nitrogen Mineralization In Grassland Soil Of Northern China: Implications For Grassland Management, X. Zhang, Q. Wang, Frank S. Gilliam, W. Bai, X. Han, L. Li

Biological Sciences Faculty Research

Nitrogen (N) applications can have a significant effect on soil N availability. The effect of 3 years of N fertilization on soil net N mineralization during the growing season (May–September) was studied in 2005 and 2006 in grassland of northern China. The experimental design was a randomized complete block with four replications of five rates of N addition as urea (0, 2, 4, 8 and 16 g N m⁻² year⁻¹). Results indicated that net N mineralization rate varied seasonally and between years, ranging from −0.04 to 0.52 μg g⁻¹ d⁻¹ in 2005 and from −0.09 …

Widespread Triploidy In Western North American Aspen (Populus Tremuloides), Karen E. Mock, Colin M. Callahan, M. Nurul Islam-Faridi, John D. Shaw, Hardeep S. Rai, Stewart C. Sanderson, Carol A. Rowe, Ronald J. Ryel, Michael D. Madritch, Richard S. Gardner, Paul G. Wolf

Aspen Bibliography

No abstract provided.

Spatial Prioritization For Invasive Plant Management, Abraham Michael Levin-Nielsen

Theses and Dissertations--Forestry and Natural Resources

Invasive exotic plant species have been recognized as serious threats to ecosystems. Extensive research on invasive exotic plant species has primarily focused on the impacts, characteristics, and potential treatments. Decision tools and management models that incorporate these findings often lack input from managers and have limited use in differing invasion scenarios. Therefore, in this study, I created a scientifically-driven framework that incorporates expert input to prioritize watersheds for management within the Inner Bluegrass region of Kentucky. The widely distributed invasive exotic plant Amur honeysuckle (Lonicera maackii) was used as an example species. The framework is built around the Analytic Hierarchy …

Pando Clone (World's Largest Living Organism?) History And Evaluation : Case Study For Revalidation, Allen V. Henningson

Aspen Bibliography

No abstract provided.

Decision Memo: Pando Aspen Clone Restoration Project, Kurt Robins

Aspen Bibliography

The Pando Clone is located in Township 26 South, Range 1 East, Sections 24 and 25 about 1 mile southwest of the Lakeside Resort on State Highway 25 and about 1 mile due east of Mallard Bay at the southwest corner of Fish Lake (see map). The Pando Clone is the largest aspen clone in the world and the largest (most massive) single living organism in existence that has been discovered to date (Grant, 1993; DeWoody et al, 2008). It encompasses approximately 106 acres and is estimated to weigh in excess of 13 million pounds (Grant, 1993). This clone is …

Foraging And Roosting Behaviors Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii) At The Northern Edge Of The Species Range, Joseph S. Johnson

Theses and Dissertations--Animal and Food Sciences

Bat populations in the eastern United States are currently declining at unprecedented rates as a result of habitat loss, commercial wind energy development, and white-nose syndrome. Effective conservation of these declining populations requires knowledge of several aspects of summer and winter ecology, including daytime habitat use (day-roost selection and social behaviors), nocturnal habitat use (foraging habitat selection, prey selection, and prey abundance), and winter hibernation (torpor) patterns. This dissertation addresses these questions for Rafinesque’s big-eared bat (Corynorhinus rafinesquii), a species of conservation concern in the southeastern United States. Kentucky represents the northern edge of the range of Rafinesque’s …

Comparison Of Harvester And Motor-Manual Logging In Intermediate Cuttings Of Deciduous Stands, Remigijus Zinkevicius, Dainius Steponavicius, Dalius Vitunskas, Gintautas Cinga

Turkish Journal of Agriculture and Forestry

Recently, new models of operational harvester heads that are suitable for work in deciduous forests and are able to process hooked trees or trees originated from stump shots have been designed. A mechanized harvesting method (harvester with head) is compared with conventional motor-manual harvesting methods in which a chain saw is used for felling, trimming, and crosscutting. Species composition of the sample stand was as follows: 58% aspen (Populus tremula), 19% lime (Tilia platyphyllos), 22% birch (Betula verrucosa), and 1% oak (Quercus robur). The study was completed under the aegis of the project of the 6th General Program of the …

Timber Talk, Vol. 50, No. 4, November 1, 2012

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News ; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried.; Wood Products: Good for the Environment; Opening Faces; Sawing For Grade Increases Value; Nebraska Forestry Spotlight; The 2 X 4 Revolutionized Construction; The Trading Post; Timber Sales

Biomass And Burning Characteristics Of Sugar Pine Cones, Anton T. Gabrielson, Andrew J. Larson, James A. Lutz, James J. Reardon

Forest Management Faculty Publications

We investigated the physical and burning characteristics of sugar pine (Pinus lambertiana Douglas) cones and their contribution to woody surface fuel loadings. Field sampling was conducted at the Yosemite Forest Dynamics Plot (YFDP), a 25.6 ha mapped study plot in Yosemite National Park, California, USA. We developed a classification system to describe sugar pine cones of different sizes and decay conditions, and examined differences among cone classes in biomass, bulk density, flame length, burning time, consumption, and relative contribution to surface fuel loads. Sugar pine cones comprised 601 kg ha^-1 of surface fuels. Mature cones comprised 54% of …

Early-Stage Thinning For The Restoration Of Young Redwood--Douglas-Fir Forests In Northern Coastal California, Usa, Jesse F. Plummer, Christopher R. Keyes, J. Morgan Varner

Forest Management Faculty Publications

Among forested parks and reserves of the Pacific Coast of the United States, the restoration of late-successional conditions to second-growth stands is a management priority. Some traditional silvicultural treatments may help achieve this objective. We evaluated early-stage thinning as a restoration treatment to facilitate the growth and development of young (33- to 45-year old), homogeneous, and second-growth stands of coast redwood (Sequoia sempervirens) and Douglas-fir (Pseudotsuga menziesii). Targeting both stand-level responses and dominant (focal) tree responses for analysis, we compared structural attributes of adjacent thinned and unthinned stands, 12–17 years after thinning. Thinned stands displayed enhanced metrics of tree vigor, …

User's Guide To Snap For Arcgis : Arcgis Interface For Scheduling And Network Analysis Program, Woodam Chung, Dennis Dykstra, Fred Bower, Stephen O'Brien, Richard M. Abt, John Sessions

Forest Management Faculty Publications

This document introduces a computer software named SNAP for ArcGIS®, which has been developed to streamline scheduling and transportation planning for timber harvest areas. Using modern optimization techniques, it can be used to spatially schedule timber harvest with consideration of harvesting costs, multiple products, alternative destinations, and transportation systems. SNAP for ArcGIS attempts either to maximize a net present value or minimize discounted costs of harvesting and transportation over the planning horizon while meeting given harvest volume and acreage constraints. SNAP for ArcGIS works in the ArcGIS environment and provides an easy-to-use analytical tool for sophisticated spatial planning of timber …

Invasive And Native Plant Response To Fire In A Pennsylvania Piedmont Woodland, Joan M. Welch

Geography & Planning Faculty Publications

No abstract provided.

Identification Of Old-Growth Forest Reference Ecosystems Using Historic Land Surveys, Redwood National Park, California, Joy Fritschle

Geography & Planning Faculty Publications

No abstract provided.

Woody Biomass Use Trends, Barriers, And Strategies: Perspectives Of Us Forest Service Managers, Shiloh Sundstrom, Max Nielsen-Pincus, Cassandra Moseley, Sarah Mccaffery

Environmental Science and Management Faculty Publications and Presentations

The use of woody biomass is being promoted across the United States as a means of increasing energy independence, mitigating climate change, and reducing the cost of hazardous fuels reduction treatments and forest restoration projects. The opportunities and challenges for woody biomass use on the national forest system are unique. In addition to making woody biomass usage pencil out, national forest managers must also navigate substantial public engagement and forest planning processes that add to the complexity of fostering woody biomass use opportunities on the national forest system. We report on the results of a survey of US Forest Service …

Modeling Movement Behavior And Road Crossing In The Black Bear Of South Central Florida, Joseph Maddox Guthrie

Theses and Dissertations--Forestry and Natural Resources

We evaluated the influence of a landscape dominated by agriculture and an extensive road network on fine-scale movements of black bears (Ursus americanus) in south-central Florida. The objectives of this study were to (1) define landscape functionality including corridor use by the directionality and speed of bear movements, (2) to develop a model reflecting selected habitat characteristics during movements, (3) to identify habitat characteristics selected by bears at road-crossing locations, and (3) to develop and evaluate a predictive model for road-crossing locations based on habitat characteristics. We assessed models using GPS data from 20 adult black bears (9 …