نتایج جستجو برای: forest management plans

تعداد نتایج: 987018  

2017
Huiyan Qin Lingbo Dong Yingli Huang Thomas J. Straka

To mitigate global climatic changes, long-term carbon trading and carbon taxes have been implemented in many countries. However, carbon prices have varied in many of these regions. Therefore, the goal of this paper was to evaluate the effects of carbon prices on trade-offs between forest carbon and timber management objectives in spatial harvest scheduling problems. The objective function of th...

2013
Francisco Rodríguez Armando González-Cabán

The abandonment of land, the high energy load generated and accumulated by vegetation covers, climate change and interface scenarios in Mediterranean forest ecosystems are demanding serious attention to forest fire conditions. This is particularly true when dealing with the budget requirements for undertaking protection programs related to the state of current and future forest landscapes. Base...

2006
Lisa A. Schulte Robert J. Mitchell Malcolm L. Hunter Jerry F. Franklin R. Kevin McIntyre Brian J. Palik

While much has been written describing biodiversity, its global decline, and the need for action, the scientific underpinnings guiding conservation practice have received little attention. We surveyed 10 large-scale forest management plans in the U.S. to establish which ecological concepts are commonly used to guide forest biodiversity conservation and evaluate the relative importance of these ...

2014
Jinlong Zhao Fengfeng Kang Luoxin Wang Xiaowen Yu Weihong Zhao Xiaoshuai Song Yanlei Zhang Feng Chen Yu Sun Tengfei He Hairong Han

Patterns of biomass and carbon (C) storage distribution across Chinese pine (Pinus tabulaeformis) natural secondary forests are poorly documented. The objectives of this study were to examine the biomass and C pools of the major ecosystem components in a replicated age sequence of P. tabulaeformis secondary forest stands in Northern China. Within each stand, biomass of above- and belowground tr...

2012
Michael J. Jenkins Elizabeth G. Hebertson Martin E. Alexander

Declining forest health attributed to associations between extensive bark beetle-caused tree mortality, accumulations of hazardous fuels, wildfire, and climate change have catalyzed changes in forest health and wildfire protection policies of land management agencies. These changes subsequently prompted research to investigate the extent to which bark beetle-altered fuel complexes affect fire b...

2000
Frederick Steiner Laurel McSherry Jill Cohen

In the United States, federal management agencies, such as the U.S. Forest Service and the U.S. Bureau of Land Management are required to assess the capability of land for future use. In addition, Arizona law now requires local jurisdictions to prepare comprehensive and general plans. Suitability analysis can be used for compliance with several elements of these plans. Here, a framework for lan...

2008
John L. Greene Thomas J. Straka

The American Jobs Creation Act of 2004 rewrote the reforestation tax incentives available to private forest owners. Owners can now deduct outright reforestation costs up to $10,000 per year for each qualified timber property and amortize any additional amount over 8 tax years. To assess the economic effect of the new incentives on forest owners, the authors developed spreadsheets to calculate a...

2013
Deborah Baranga Colin A. Chapman Patrick Mucunguzi Rafael Reyna-Hurtado

and Conservation, Developments in Primatology: Progress and Prospects 49, DOI 10.1007/978-1-4614-7666-5_15, © Springer Science+Business Media New York 2014 Abstract Understanding the strategies that primates use to survive in fragmented forest landscapes is vital for constructing informed management plans for specific regions and to enable researchers to start to make generalizations. In a 15-m...

2008
John L. Greene Thomas J. Straka

The American Jobs Creation Act of 2004 rewrote the reforestation tax incentives available to private forest owners. Owners can now deduct outright reforestation costs up to $10,000 per year for each qualified timber property and amortize any additional amount over 8 tax years. To assess the economic effect of the new incentives on forest owners, the authors developed spreadsheets to calculate a...

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