Productivity Of Americas Forests And Climate Change

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."

Analyzes the impacts of elevated carbon dioxide & climate change on forested ecosystems, & the economic feedbacks on harvest patterns & vegetation change on private timberlands in the U.S. Used as a framework linking general circulation model output, an ecosystem model (TEM), models of the forest sector, & a carbon accounting model. Future climates are described with output from the different models. The strong demand for wood products in the future dampens any positive growth effects on forests, for all but the maximum scenario. Charts, tables & maps.

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?

Conserve biodiversity with effective forest management practices! This valuable book examines integrated forest management in the Americas. Climate Change and Forest Management in the Western Hemisphere takes a close look at such important international issues as global warming and the destruction of the Amazon rainforest. It offers tested suggestions for combining productive economic use of forest products with sustainable, ecologically sound management practices. Here you will find case studies from representative forests in North, Central, and South America. This solidly researched book explores the barriers to integrating environmental and economic approaches to forest management. It also offers practical suggestions for overcoming those barriers, including economic incentives for sustainable use and the conservation of biodiversity. Climate Change and Forest Management in the Western Hemisphere also explores: the role of the Brazilian rainforest in the global carbon cycle sustainable use of rainforests the valuation of forests for carbon sequestration plant biodiversity in managed timber forests issues of deforestation and reforestation and much more! Climate Change and Forest Management in the Western Hemisphere offers a comprehensive overview of a vital subject. It is an essential resource for forestry specialists, environmental economists, and anyone interested in climate change or sustainable agriculture.

The research presented here provides a sound scientific basis for management and policy decisions regarding the productivity and sustainability of forest ecosystems in the context of a rapidly changing global environment. It is the synthesis of 5 years of field and laboratory research on southern forests conducted by the US Department of Agriculture Forest Service to provide scientific assessments to the US Global Change Research Program, and, as such, is invaluable for policy makers and land use managers.

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."