Forests have been considered as a major carbon sink within the global carbon budget. However, a fragmented forest landscape varies significantly in its composition and age structure, and the amount of carbon sequestered at this level remains generally unknown to the scientific community. More…
Keywords: Net ecosystem productivity (NEP), carbon flux, Landscape, Disturbance, Management
Source: Ecological Modelling 154 (2002) 75?91
Forest landscape models have become important tools for understanding large-scale and long-term landscape (spatial) processes such as climate change, fire, windthrow, seed dispersal, insect outbreak, disease propagation, forest harvest, and fuel treatment, because controlled field experiments…
Source: Forest Ecology and Management. 254: 371-374.
A recently-developed high resolution climatological temperature data base was input into a gypsy moth phenology model. The high resolution data were created from a coupling of 30-year averages of station observations and digital elevation data. The resultant maximum and minimum temperatures have…
Source: IN: Gottschalk, Kurt W.; Twery, Mark J.; Smith, Shirley I., eds. Proceedings, U.S. Department of Agriculture interagency gypsy moth research review 1990; East Windsor, CT. Gen. Tech. Rep. NE-146. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 115.
One of the most important factors impacting terrestrial and aquatic ecosystems is the atmospheric environment. Climatic and weather events play a significant role in governing the natural processes that occur in these ecosystems. The current characteristics of the vast number of ecosystems that…
Source: In: Mickler, Robert A.; Birdsey, Richard A.; Hom, John, eds. Responses of northern U.S. forests to environmental change. Ecological studies 139. New York: Springer-Verlag: 51-115.
A common component of fire incident reports and prescribed burn preparations is an estimate of the energy that was or will be released by the fire. Typically, this is based on the energy released by combustion of the fuel load, reduced to account for the energy that is required to evaporate…
Source: In: 2d International Wildfire Ecology and Fire Management Congress: 5th Symposium on Fire and Forest Meteorology; 2003 November 16-20; Orlando, FL. Boston, MA: American Meteorological Society: J2.7.
The Haines Index, introduced by Haines (1988) as the Lower Atmosphere Severity Index, is designed to gauge how readily the lower mid-troposphere (500 to 4500 m AGL) will spur an otherwise fairly predictable fire to become erratic and unmanageable. Based on stability and moisture, the Haines Index (…
Source: In: Proceedings of the 4th Symposium on Fire and Forest Meteorology; 2001 November 13-15; Reno, NV. Boston, MA: American Meteorological Society: 233-236
Fire managers and forecasters must have tools, such as fire indices, to summarize large amounts of complex information. These tools allow them to identify and plan for periods of elevated risk and/or wildfire potential. This need was once met using simple measures like relative humidity or maximum…
Source: In: 2d International Wildland Fire Ecology and Fire management Congress: 5th Symposium on Fire and Forest Meteorology; 2003 November 16-20; Orlando, FL. Boston, MA: American Meteorological Society: J11.1.
The breadth and scope of human-caused environmental change is well-established; the distribution and abundance of species, the vegetation cover of the land, and the chemistry of the atmosphere have been altered substantially and globally. How can science in wilderness areas contribute to the…
Keywords: wilderness, global environmental change, carbon dioxide, nitrogen fixation, human impact
Source: In: Cole, David N.; McCool, Stephen F.; Freimund, Wayne A.; O'Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference-Volume 1: Changing perspectives and future directions; 1999 May 23-27; Missoula, MT. Proceedings RMRS-P-15-VOL-1. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 5-9
Source: In: 5th Symposium on fire and forest meteorology joint with 2nd International wildland fire ecology and fire management congress; 2003 November 16-20; Orlando, FL. Boston, MA: American Meteorlogical Society: n.p. Available only on CD.
Temperature, light, wind, and precipitation were measured in the understory of managed and unmanaged northern hardwood forests in the Upper Peninsula of Michigan from 1995 through 2001. These measurements provide a baseline of information to compare the microclimate under managed and unmanaged…
Keywords: Microclimate measurements, temperature extremes, weather data, Upper Peninsula of Michigan, managed and unmanaged northern hardwood forest
Source: Gen. Tech. Rep. NC-236. St. paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 31 p.