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| Leenhouts, Bill; U. S. Fish and Wildlife Service; Bill_Leenhouts@.fws.gov. |
| Wildland fire has been an integral part of the landscape of the conterminous United States for millennia. Analysis of contemporary and pre-industrial (~ 200 - 500 yr BP) conditions, using potential natural vegetation, satellite imagery, and ecological fire regime information, shows that wildland fires burned 35 - 86 x 106 ha (megahectares) annually in the pre-industrial era, consuming 530 - 1230 teragram (Tg) of biomass. At present, in comparison, 5 - 7 Mha/yr burn, consuming 77 - 189 Tg of biomass annually. If historic fire regimes were restored to non-urban and non-agricultural lands today, 18 - 43 Mha would burn annually, consuming 285 - 602 Tg of biomass. For each era, 11 biomass (wildland and agricultural) burning emissions were estimated, and... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Air quality; Biomass burning; Climate change; Conterminous United States; Emission estimates; Fire regimes; Pre-industrial conditions; Prescribed burning; Wildland fire.. |
| Ano: 1998 |
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| Schumann, Keith D.; Conner, J. Richard; Richardson, James W.; Stuth, Jerry W.; Hamilton, Wayne T.; Drawe, D. Lynn. |
| Woody plant encroachment restricts forage production and capacity to produce grazing livestock. Biophysical plant growth simulation and economic simulation were used to evaluate a prescribed burning range management technique. Modeling systems incorporated management practices and costs, historical climate data, vegetation and soil inventories, livestock production data, and historical regional livestock prices. The process compared baseline non-treatment return estimates to expected change in livestock returns resulting from prescribed burning. Stochastic analyses of production and price variability produced estimates of greater net returns resulting from use of prescribed burning relative to the baseline. |
| Tipo: Journal Article |
Palavras-chave: Biophysical simulation; Prescribed burning; Range management; Simulation; Land Economics/Use. |
| Ano: 2001 |
URL: http://purl.umn.edu/15452 |
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