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	Provedor de dados Ecology and Society (2) Autor Duncan, Sally L.; Oregon State University; Sally.Duncan@oregonstate.edu (1) Leenhouts, Bill; U. S. Fish and Wildlife Service; Bill_Leenhouts@.fws.gov (1) Mitchell, Robert J.; Jones Ecological Research Center; Robert.Mitchell@jonesctr.org (1) Palavra-chave Fire regimes (2) Air quality (1) Biomass burning (1) Climate change (1) Conterminous United States (1) Disturbances (1) Emission estimates (1) Historical social and future ranges of variability (1) Legacies (1) Pre-industrial conditions (1) Prescribed burning (1) Rareness (1) Social acceptability (1) Species richness (1) Wildland fire. (1) Mais... Tipo do documento Peer-Reviewed Reports (2) Ano 2009 (1) 1998 (1) País Canada (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Assessment of Biomass Burning in the Conterminous United States Ecology and Society 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 Range of Variability in Southern Coastal Plain Forests: Its Historical, Contemporary, and Future Role in Sustaining Biodiversity Ecology and Society Mitchell, Robert J.; Jones Ecological Research Center; Robert.Mitchell@jonesctr.org; Duncan, Sally L.; Oregon State University; Sally.Duncan@oregonstate.edu. Historical range of variation (HRV) has been used as a conceptual tool to determine appropriate management actions to sustain or restore diversity of ecological systems. This concept has come into question for both biological and social considerations, and the southeastern United States is a good model system to test its utility. Southeastern Coastal Plain upland pine savannas and woodlands and their associated wetlands are among the most diverse communities in temperate North America, having both high levels of species richness and large numbers of endemic flora and fauna. However, this diversity is intimately linked with disturbance regimes. Maintaining frequent fire, varied in season based on changing management objectives through time, is the most... Tipo: Peer-Reviewed Reports Palavras-chave: Disturbances; Fire regimes; Historical social and future ranges of variability; Legacies; Rareness; Social acceptability; Species richness. Ano: 2009 Registros recuperados: 2 Primeira ... 1 ... Última

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