The Impact of Climate Change on America's Forests


Book Description

Abstract: "This report documents trends and impacts of climate change on America's forests as required by the Renewable Resources Planning Act of 1974. Recent research on the impact of climate and elevated atmospheric carbon dioxide on plant productivity is synthesized. Modeling analyses explore the potential impact of climate changes on forests, wood products, and carbon in the United States."




The Impact of Climate Change on America's Forests: a Technical Document Supporting the 2000 USDA Forest Service RPA Assessment


Book Description

The increasing concentration of atmospheric carbon dioxide has raised concern about the vulnerability of forests to potential changes in climate and climate variability. These concerns have prompted governments around the world to commission technical assessments on the impact of climate change on the environment and the economy. Based on the current scientific information within these assessments, governments have initiated negotiations on policy action to reduce greenhouse gas emissions and to address the vulnerabilities of the ecological, economic, and social systems to climate change. Critical to policy formulation is a periodic synthesis of the ever-expanding knowledge on forest ecology, the impact of climate on the forests and of forests on climate, forest management, the socio-economic value of trees and forests, and the role of forests in the global carbon cycle. The Forest Service conducts periodic assessments of the condition of forest and rangeland resources under the authority of the Renewable Resources Planning Act (RPA). The structure of these periodic assessments allows for the synthesis and integration of the current state of scientific knowledge. As part of the RPA process, this report synthesizes current information that assesses the impact of climate change on US forests. Six policy questions critical to understanding the impact of global climate change on current and future trends form the basis for this report. The first chapter describes mandates and structures of synthesizing scientific information on the forest sector, describes current understandings of the global climate, and closes with policy questions addressed in this assessment. The next chapters address the six policy questions of: what are the likely effects of increasing atmospheric carbon dioxide and prospective climate changes on ecosystem productivity, as measured by changes in net primary productivity?, to what geographic extent will potential ecosystem types change or move across the US, as measured in composition and boundary changes?, what changes in forest productivity will occur as measured by changes in volume, growth and biomass?, what are the potential impacts on the forest sector under climate change, as measured by employment and timber prices?, when forest policy questions for the RPA Assessment, such as reduced NFS harvest, are examined with and without climate change, do the forest sector impacts differ greatly in magnitude or kind?, and what are the opportunities and costs of emissions mitigation using forest ecosystem management and forest product technologies?










The Ecology and Silviculture of Oaks, 3rd Edition


Book Description

The third edition of The Ecology and Silviculture of Oaks is an updated and expanded edition that explores oak forests as responsive ecosystems. New chapters emphasize the importance of fire in sustaining and managing oak forests, the effects of a changing climate, and advanced artificial regeneration techniques. This new edition expands on silvicultural methods for restoring and sustaining oak woodlands and savannahs, and on management of ecosystem services, including wildlife habitat. It also incorporates new material on evaluating landscape-scale, and cumulative effects of management action compared with inaction. Nine of the fifteen chapters cover updated information on the geographic distribution of US oaks, oak regeneration dynamics, site productivity, stocking and stand development, even- and uneven-aged silvicultural methods, and growth and yield. This edition includes a new section with colour illustrations for improved visualization of complex relationships. This book is intended for forest and wildlife managers, ecologists, silviculturists, environmentalists, and students of those fields.







Causes and Consequences of Forest Growth Trends in Europe


Book Description

Forest growth in Europe has been increasing during the last decades. The possible causes suggested to explain this have been increasing atmospheric carbon dioxide concentration, improved temperature and precipitation climate, increasing nitrogen deposition and better management. In this book complementary approaches are used to discriminate between the importance of each of these factors. Investigations over large geographical areas are used to separate current variability while detailed studies of the growth of individual trees allow historical trends to be evaluated. Four different mechanistic forest ecosystem models supplement the empirical investigations. The major cause of the observed growth increase is attributed to the increased nitrogen availability. In future, direct temperature effects and increasing atmospheric carbon dioxide concentration are likely to become important determinants of forest growth. Anyone interested in the future of production and health of Europe's forests should benefit form this extensive analysis of the current status and projections of forest growth.










The Potential of U.S. Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect


Book Description

Much attention has been given to above ground biomass and its potential as a carbon sink, but in a mature forest ecosystem 40 to 60 percent of the stored carbon is below ground. As increasing numbers of forests are managed in a wide diversity of climates and soils, the importance of forest soils as a potential carbon sink grows. The Potenti