González-Cabán, Armando; Omi, Philip N., technical coordinators. 1999. Proceedings of the symposium on fire economics, planning, and policy: bottom lines; 1999 April 59; San Diego, CA. Gen. Tech. Rep. PSW-GTR-173. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 332 p. These proceedings summarize the results of a symposium designed to address curre...

Seedlings of cherrybark oak (Quercus pagoda Rafinesque), Nuttall oak (Quercus nuttallii Palmer) and overcup oak (Quercus lyrata Walter) were grown under two light levels, partial (20 percent) or full sunlight, to study physiological acclimation of leaves to low light availability. Shifts in leaf morphology were noted for seedlings raised beneath partial sunlight, and photosynthetic light respon...

The Forest Inventory and Analysis (FIA) program of the USDA Forest Service conducts a national inventory of forests of the United States. A subset of FIA permanent inventory plots are sampled every year for numerous indicators of forest health ranging from soils to understory vegetation. Down woody material (DWM) is an FIA indicator that provides estimates of forest structural diversity, forest...

Dr. Jinggao Liu , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX Dr. Alois A. Bell , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX Dr. Robert D. Stipanovic , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX Dr. Lorraine S. Puckhaber , USDA, ARS, Southern Plains Agricultural Research Center, College Station, TX

Plant breeders contributed enormously to the agricultural and economic development of the United States. By improving the profi tability of farming, plant breeders improved the economic condition of farmers and contributed to the growth and structure of rural communities. In the years since World War II, agriculture and the quality of rural life have been driven by policies that encouraged and ...

Recent concern about survival and recovery of highelevation white pine ecosystems has returned white pine blister rust (caused by Cronartium ribicola) to prominence as a significant threat to forest health in the western U.S. (Samman et al., 2003). This, in turn, has spurred new research into potential rustresistance mechanisms in high-elevation white pines, including whitebark (Pinus albicauli...

The Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics & Nitrogen (BEACHON) project seeks to understand the feedbacks and interrelationships between hydrology, biogenic emissions, carbon assimilation, aerosol properties, clouds and associated feedbacks within water-limited ecosystems. The Manitou Experimental Forest Observatory (MEFO) was established in 2008 by the Nat...

In: Watson, Alan; Sproull, Janet, comps. 2003. Science and stewardship to protect and sustain wilderness values: Seventh World Wilderness Congress symposium;2001 November 2–8; Port Elizabeth, South Africa. Proc. RMRS-P-27. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. Abstract—This paper examines the responses of two indigenous groups to the potenti...

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...

This study compared height and diameter measurements and volume estimates on 20 hardwood and 20 softwood stems using traditional optical dendrometers, an experimental camera instrument, and mechanical calipers. Multiple comparison tests showed significant differences among the means for lower stem diameters when the camera was used. There were no significant differences among the methods for vo...