نتایج جستجو برای: forest service

تعداد نتایج: 431278  

Journal: :Ecological applications : a publication of the Ecological Society of America 2007
Akiko Satake Thomas K Rudel

An historical generalization about forest cover change in which rapid deforestation gives way over time to forest restoration is called "the forest transition." Prior research on the forest transition leaves three important questions unanswered: (1) How does forest loss influence an individual landowner's incentives to reforest? (2) How does the forest recovery rate affect the likelihood of for...

2007
Jeffrey Pines RICHARD S. SMITH Detlev Vogler

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...

2012
Denys Yemshanov

Denys Yemshanov ([email protected]), Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, Sault Ste. Marie, ON, Canada Frank H. Koch, USDA Forest Service, Eastern Forest Environmental Threat Assessment Center, Research Triangle Park, NC USA Mark Ducey, University of New Hampshire, Department of Natural Resources and the Environment, Durham, NH USA Manuel Colunga-Ga...

Journal: :The Western Historical Quarterly 1988

Journal: :Eos, Transactions American Geophysical Union 1999

2004
Chris A. Childers Douglas D. Piirto

Fire management has always meant fire suppression to the managers of the chaparral covered southern California National Forests. Today, Forest Service fire management programs must be cost effective, while wilderness fire management objectives are aimed at recreating natural fire regimes. A cost-effectiveness analysis has been developed to compare fire management options for meeting these objec...

2013
Denys Yemshanov Frank H. Koch Mark Ducey Klaus Koehler

Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, 1219 Queen Street East, Sault Ste. Marie, ON P6A 2E5, Canada, USDA Forest Service, Southern Research Station, Eastern Forest Environmental Threat Assessment Center 3041 Cornwallis Road, Research Triangle Park, NC 27709, USA, Department of Natural Resources and the Environment, University of New Hampshire, 114 James ...

2004
Chris A. Childers Douglas D. Piirto

Fire management has always meant fire suppression to the managers of the chaparral covered southern California National Forests. Today, Forest Service fire management programs must be cost effective, while wilderness fire management objectives are aimed at recreating natural fire regimes. A cost-effectiveness analysis has been developed to compare fire management options for meeting these objec...

2010
A. H. FULLERTON K. M. BURNETT

A. H. FULLERTON*, K. M. BURNETT , E. A. STEEL, R. L . FLITCROFT, G. R. PESS* , B . E. FEIST* , C. E . TORGERSEN , D. J . MILLER AND B.L. SANDERSON* *NOAA Northwest Fisheries Science Center, Seattle, WA, U.S.A. USDA Forest Service and Oregon State University, Corvallis, OR, U.S.A. USDA Forest Service, Pacific Northwest Research Station, Olympia, WA, U.S.A. USGS Forest and Rangeland Ecosystem Sci...

2011
T. D. Perkins G. T. Adams S. T. Lawson P. G. Schaberg S. G. McNulty

T. D. Perkins is Director of Research, and G. T. Adams and S. T. Lawson are Research Ass istants, Proctor Maple Research Center, T he University of Vermont;· P. 0. Box 233, Harvey Road, Underhill Center, VT 05490 USA. P. G. Schaberg is Research Plant Physiologist, Northeastern Experiment Station, USDA Forest Service, Burlington, VT 05402 USA. S. G. McNulty is Program Manager, Southern Global Ch...

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