This paper deals with sustainability in forestry management. We study a dynamic control system within the mathematical framework of viability analysis. In particular, we use the concept of viability kernel to reveal sustainable harvesting policies and sustainable resource states. An example illustrates the general statements.

Governments around the world are increasingly devolving authority for forest management to the local level in an attempt to strengthen the management of national forests. Community forestry programs are recognized as providing a range of economic and social benefits and having a positive impact on increasing forest cover. However, concerns have been raised about the capability of user groups to...

Issue For a variety of reasons, community forestry is not always well suited to existing forest certification schemes. Using the case of Nepal, this paper considers the extent to which promoting the trade in non‐ timber forest products can complement, or even provide an alternative to, forest certification for timber while promoting sustainable community forestry. The paper develops recent work...

Assessing the impact of training sample selection on accuracy of an urban classification: a case study in Denver, Colorado Huiran Jin, Stephen V. Stehman & Giorgos Mountrakis a Department of Environmental Resources Engineering, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA b Department of Forest and Natural Resources Management, State Univer...

There is a growing demand for alternatives to Sweden's current dominant silvicultural system, driven by a desire to raise biomass production, meet environmental goals and mitigate climate change. However, moving towards diversified forest management that deviates from well established silvicultural practices carries many uncertainties and risks. Adaptive management is often suggested as an effe...

It is only relatively recently that national adaptation strategies have begun to develop measures by which forestry can adapt to climate change; often those measures opt to use a relatively general strategy for coping under conditions of disturbance. Particularly in states using intensive forest management, such as Sweden, this approach marks a departure from current strategies for achieving ma...

ROBERT F. SCHARPF is projecllcader, forest disease research, with headquarters in Berkeley. Calif. He earned a bachelor's degree in forestry (1953) at the University of Missouri. and a master's degree in forestry (1957) and a doctorate in plant pathology (1963) at the University of California, Berkeley. He joined the Forest Service in 1960 and has been with the Station's staff since then. RICHA...

High price of chippers and small scale of forestry management area seemed to create a standstill situation of chip utilization system in Japan. By combining the benefits of small scale forestry and low price chippers, a simple and low-cost chip supply model could be established, creating new employments opportunities. The object of this study is to propose the benefits of a chip supply system i...