Forest Service Research Highlights
Author | : |
Publisher | : |
Total Pages | : 24 |
Release | : 1992 |
Genre | : Forests and forestry |
ISBN | : |
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Author | : |
Publisher | : |
Total Pages | : 24 |
Release | : 1992 |
Genre | : Forests and forestry |
ISBN | : |
Author | : Richard V. Pouyat |
Publisher | : Springer Nature |
Total Pages | : 306 |
Release | : 2020-09-02 |
Genre | : Science |
ISBN | : 3030452166 |
This open access book synthesizes leading-edge science and management information about forest and rangeland soils of the United States. It offers ways to better understand changing conditions and their impacts on soils, and explores directions that positively affect the future of forest and rangeland soil health. This book outlines soil processes and identifies the research needed to manage forest and rangeland soils in the United States. Chapters give an overview of the state of forest and rangeland soils research in the Nation, including multi-decadal programs (chapter 1), then summarizes various human-caused and natural impacts and their effects on soil carbon, hydrology, biogeochemistry, and biological diversity (chapters 2–5). Other chapters look at the effects of changing conditions on forest soils in wetland and urban settings (chapters 6–7). Impacts include: climate change, severe wildfires, invasive species, pests and diseases, pollution, and land use change. Chapter 8 considers approaches to maintaining or regaining forest and rangeland soil health in the face of these varied impacts. Mapping, monitoring, and data sharing are discussed in chapter 9 as ways to leverage scientific and human resources to address soil health at scales from the landscape to the individual parcel (monitoring networks, data sharing Web sites, and educational soils-centered programs are tabulated in appendix B). Chapter 10 highlights opportunities for deepening our understanding of soils and for sustaining long-term ecosystem health and appendix C summarizes research needs. Nine regional summaries (appendix A) offer a more detailed look at forest and rangeland soils in the United States and its Affiliates.
Author | : |
Publisher | : |
Total Pages | : 132 |
Release | : 1997 |
Genre | : Climatic changes |
ISBN | : |
Author | : Sally J. Campbell |
Publisher | : |
Total Pages | : 28 |
Release | : 2004 |
Genre | : Forest surveys |
ISBN | : |
This publication presents highlights of a recent southeast Alaska inventory and analysis conducted by the Pacific Northwest Research Station Forest Inventory and Analysis Program (USDA Forest Service). Southeast Alaska has about 22.9 million acres, of which two-thirds are vegetated. Almost 11 million acres are forest land and about 4 million acres have nonforest vegetation (herbs and shrubs). Species diversity is greatest in western hemlockAlaska cedar closed-canopy forests, in mixed-conifer open and woodland forests, and in open tall alder-willow shrub type. Of the forest land, 4.1 million acres are classified as timberland (unreserved productive forest land). About 4.4 million acres of forest land are reserved from harvest; the majority of this reserved land (85 percent) is on the Tongass National Forest (USDA Forest Service). The volume of timber on timberland was estimated at 21,040 million cubic feet; the majority of volume88 percentis on the Tongass National Forest. Seventy-four percent of timberland acres and 84 percent of the growing-stock volume is in sawtimber stands older than 150 years, with western hemlock or western hemlockSitka spruce mix predominating. Most timberland in southeast Alaska is of relatively low productivity, producing less than 85 cubic feet per acre per year. For most timberland acres, average annual growth exceeds average annual mortality and harvest.
Author | : United States. Forest Service |
Publisher | : |
Total Pages | : 45 |
Release | : 2006 |
Genre | : Forests and forestry |
ISBN | : |
Author | : Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) |
Publisher | : |
Total Pages | : 292 |
Release | : 1967 |
Genre | : Forests and forestry |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 30 |
Release | : 1996* |
Genre | : Forest fires |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 402 |
Release | : 2004 |
Genre | : Electronic books |
ISBN | : |
"Southern forests provide innumerable benefits. Forest scientists, managers, owners, and users have in common the desire to improve the condition of these forests and the ecosystems they support. A first step is to understand the contributions science has made and continues to make to the care and management of forests. This book represents a celebration of past accomplishments, summarizes the current state of knowledge, and creates a vision for the future of southern forestry research and management. Chapters are organized into seven sections: "Looking Back," "Productivity," "Forest Health," "Water and Soils," "Socioeconomic," "Biodiversity," and "Climate Change." Each section is preceded by a brief introductory chapter. Authors were encouraged to focus on the most important aspects of their topics; citations are included to guide readers to further information."
Author | : United States. Forest Service |
Publisher | : |
Total Pages | : 35 |
Release | : 2011 |
Genre | : Forests and forestry |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : 24 |
Release | : 1992 |
Genre | : Forests and forestry |
ISBN | : |