Special Issues
Science and Management of Forest Headwater Streams
Robert J. Danehy and George G. Ice, editors
Vol. 53, No. 2 (April 2007)
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Best management practices for forestry and forest practice rules have historically focused on protecting high-order fish bearing streams, but foresters and watershed managers are now recognizing that headwater streams comprise the majority of stream networks and are often strongly influenced by adjacent land. As a result, aquatic stewardship approaches and requirements for headwater streams in managed forests have recently received considerable attention. This attention, particularly in the Pacific Northwest, is focused on anadromous salmonids and the perception that lack of protection to headwater streams leads to deleterious impacts on the physical habitat and water quality of downstream reaches. There is also an emerging recognition that headwater reaches can support important non-fish communities including amphibians.
To address these concerns, the Headwaters Research Cooperative (HRC) was founded in 2001 to augment the body of science on headwater streams. The Cooperative, formed by private and public organizations, hosted a meeting in the fall of 2001 to identify ongoing research and research needs related to forest headwater streams. The meeting attracted approximately 100 researchers and policy makers from throughout the Pacific Northwest, British Columbia, and across the United States, who interacted in focus groups on specific topics to develop lists of research priorities. The larger group then developed overall research priorities through consensus. This list became the roadmap for HRC to fund research efforts. HRC-funded research and other research that addressed the priorities list became the material for this special issue of Forest Science.
A valuable reference for foresters and watershed managers.
US-Canada Forest Products Trade
Runsheng Yin, editor
Vol. 52, No. 4 (August 2006)
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The US lumber industry has long claimed that Canada's administratively determined stumpage prices are a subsidy to Canadian producers, prompting the United States to impose restrictions and tariffs on Canadian imports. Canadian strategic responses have included increasing exports to offset losses and pursuing legal remedies. Against this background, a symposium was held jointly by bilateral academic and governmental institutions in the eastern United States and Canada on March 7-8, 2005. It addressed North American market relationships and industry trends; impacts of past, current, and future US trade restrictions; and views of and approaches to US and Canadian stumpage pricing. The goal was to lend scholarship to the discussion and enhance the understanding of any related policy actions. This special issue of Forest Science includes 14 thought-provoking articles from this symposium.
A must-read for industry executives, policymakers, business analysts, and academic researchers.
Forest Growth and Yield
Chris J. Cieszewski and Mike Strub, editors
Vol. 52, No. 2 (April 2006)
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This special issue of Forest Science showcases selected articles from the Second International Conference on Forest Measurements and Quantitative Methods and Management, which took place on June 15-18, 2004 at Hot Springs, Arkansas. The aim of this conference series is to conglomerate the diverse aspects of the quantitative methods used in forest inventory and management under a general umbrella of quantitative forestry. This collection includes articles on:
- Classification/mapping with satellite imagery
- Growth and yield modeling
- Self-referencing functions
- Special inventory topics
- Habitat modeling
A valuable reference for inventory specialists, quantitative silviculturalists, quantitative ecologists, and biometricians.
Sierran Mixed-Conifer Research
Malcolm North and Jiquan Chen, editors
Vol. 51, No. 3 (June 2005)
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Many of the forests of the western United States have been severely altered by a century of fire suppression, prompting both regional and national restoration efforts. The success of these efforts requires a better understanding of past forest conditions and the ecological processes that affect forest health. This special issue of Forest Science, collected from a coordinated ecosystem-level experiment, investigates the connections between structure, composition, and function on 72 hectares of old-growth mixed-conifer in California's Sierra Nevada.
Articles include:
- Stand conditions associated with tree regeneration in Sierran mixed-conifer forests
- Biophysical controls on soil respiration in the dominant patch types of an old-growth, mixed-conifer forest
- Patterns of mortality in an old-growth mixed-conifer forest of the Southern Sierra Nevada, California
- Influence of fire and El Niño on tree recruitment varies by species in Sierran mixed conifer
Canopy Research
Jiquan Chen and Geoffrey Parker, editors
Vol. 50, No. 3 (June 2004)
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In this special issue, leading researchers highlight the growing importance of canopy research to enhance foresters' knowledge of the processes that drive tree and stand development.
Articles include, among others:
- Importance of Foliar Nitrogen Concentration to Predict Forest Productivity in the Mid-Atlantic Region-Yude Pan, John Hom, Jennifer Jenkins, and Richard Birdsey
- Old-Growth Forest Canopy Structure and Its Relationship to Throughfall Interception-Nalini M. Nadkarni and Mark M. Sumera
- Forest Stand Structure and Pattern of Old-Growth Western Hemlock/Douglas-Fir and Mixed-Conifer Forests-Malcolm North, Jiquan Chen, Brian Oakley, Bo Song, Mark Rudnicki, Andrew Gray, and Jim Innes
- The Distribution of Free Space and Its Relation to Canopy Composition at Six Forest Sites-Roman Dial, Benjamin Bloodworth, Andrew Lee, Patrick Boyne, and Jeffrey Heys
- Development of Canopy Structure in Pseudotsuga menziesii Forests in the Southern Washington Cascades-Robert Van Pelt and Nalini M. Nadkarni
- Crown Cover Is Correlated with Relative Density, Tree Slenderness, and Tree Height in Lodgepole Pine-Mark Rudnicki, Uldis Silins, and Victor J. Lieffers
- Spatial Relationship of Biomass and Species Distribution in an Old-Growth Pseudotsuga-Tsuga Forest-Jiquan Chen, Bo Song, Mark Rudnicki, Melinda Moeur, Ken Bible, Malcolm North, Dave C. Shaw, Jerry F. Franklin, and Dave M. Braun
- Three-Dimensional Canopy Structure of an Old-Growth Douglas-Fir Forest-Bo Song, Jiquan Chen, Janet Silbernagel
Remote Sensing
Randolph Wynne, Editor
Vol. 49, No. 3 (June 2003)
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Although remote sensing has been an integral part of forestry since the operational integration of aerial photographs into forest inventory in Canada in the 1920s, the rapid pace of sensor development and information needs in the past three decades has led to an explosion of forestry remote sensing research and applications.
"Demands on forests are increasing and the information required to sustainably manage forests in the face of this demand must also increase," writes Randolph Wynne, associate professor of forestry at Virginia Tech and editor of the special issue. "Foresters are being asked to increase production of wood and fiber on an ever-decreasing land base while concomitantly maintaining the important supplies of public goods (viable fish and wildlife populations, clean water, and recreational opportunities) that well-managed forests have always provided. To meet this challenge, forest managers will require new types of information, and remote sensing will be an important piece of the overall information puzzle. The research results reported in this special issue of Forest Science will eventually lead to better information on, and therefore better management of, our forest resources."
The papers in this special issue are a cross-section of the scope of data and applications in forestry remote sensing. Remotely sensed data types include aerial photographs, lidar data, hyperspectral images, radar data, and Earth resource satellite data. The data is being used for forest inventory, ecological land type delineation, harvest detection, chlorophyll mapping and monitoring, windthrow detection and mapping, and global forest cover mapping.
Forest Wildlife-Habitat Relationships:
Population and Community Responses to Forest Management
Stephen DeStefano and Robert G. Haight, editors
Vol. 48, No. 2 (May 2002)
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This new book from the Society of American Foresters presents current research on the interface between forests and wildlife. The 26 papers, which cover work being conducted by state and federal agencies, private industry and institutions, and universities across America, are divided into seven sections representing major research topics:
- current issues and insights connecting management of forests and wildlife
- forest structure and the question of scale
- responses of wildlife to natural and anthropogenic changes in vegetative cover
- responses of wildlife to forest structural stages
- responses of wildlife to specific silvicultural treatments
- influences of road and roadlike structures on forest structure and wildlife
- special structural requirements of selected forest species
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