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In the boreal biome, fire is the major disturbance agent affecting ecosystem change, and fire dynamics will likely change in response to climatic warming. We modified a spatially explicit model of Alaskan subarctic treeline dynamics (ALFRESCO) to simulate boreal vegetation dynamics in interior Alaska. The model is used to investigate the role of black spruce ecosystems in the fire regime of interior Alaska boreal forest. Model simulations revealed that vegetation shifts caused substantial changes to the fire regime. The number of fires and the total area burned increased as black spruce forest became an increasingly dominant component of the landscape. The most significant impact of adding black spruce to the model...
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The response of terrestrial ecosystems to climate warming has important implications to potential feedbacks to climate. The interactions between topography, climate, and disturbance could alter recruitment patterns to reduce or offset current predicted positive feedbacks to warming at high latitudes. In northern Alaska the Brooks Range poses a complex environmental and ecological barrier to species migration. We use a spatially explicit model (ALFRESCO) to simulate the transient response of subarctic vegetation to climatic warming in the Kobuk/Noatak River Valley (200 x 400 km) in northwest Alaska. The model simulations showed that a significantly warmer (+6 degrees C) summer climate would cause expansion of forest...


    map background search result map search result map How Climate and Vegetation Influence the fire Regime of the Alaskan Boreal Biome: The Holocene Perspective Modeling the influence of topographic barriers on treeline advance at the forest-tundra ecotone in northwestern Alaska Developing Fire Behavior Fuel Models for the Wildland-Urban Interface in Anchorage, Alaska Relative importance of different secondary successional pathways in an Alaskan boreal forest Interactive controls of herbivory and fluvial dynamics on landscape vegetation patterns on the Tanana River floodplain, interior Alaska Simulating the Influences of various Fire Regimes on Caribou Winter Habitat Modeling the Impact of Black Spruce on the Fire Regime of Alaskan Boreal Forest Simulating the effects of climate change on fire regimes in Arctic biomes: implications for caribou and moose habitat Planning for resilience: modeling change in human-fire interactions in the Alaskan boreal forest Relative importance of different secondary successional pathways in an Alaskan boreal forest Developing Fire Behavior Fuel Models for the Wildland-Urban Interface in Anchorage, Alaska Modeling the Impact of Black Spruce on the Fire Regime of Alaskan Boreal Forest Modeling the influence of topographic barriers on treeline advance at the forest-tundra ecotone in northwestern Alaska Interactive controls of herbivory and fluvial dynamics on landscape vegetation patterns on the Tanana River floodplain, interior Alaska Simulating the Influences of various Fire Regimes on Caribou Winter Habitat How Climate and Vegetation Influence the fire Regime of the Alaskan Boreal Biome: The Holocene Perspective Simulating the effects of climate change on fire regimes in Arctic biomes: implications for caribou and moose habitat Planning for resilience: modeling change in human-fire interactions in the Alaskan boreal forest