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Changes in forest biomass and tree species distribution under climate change in the northeastern United StatesAuthor(s): Wen J. Wang; Hong S. He; Frank R. Thompson; Jacob S. Fraser; William D. Dijak
Source: Landscape Ecology
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
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DescriptionContext. Forests in the northeastern United States are currently in early- and mid-successional stages recovering from historical land use. Climate change will affect forest distribution and structure and have important implications for biodiversity, carbon dynamics, and human well-being. Objective. We addressed how aboveground biomass (AGB) and tree species distribution changed under multiple climate change scenarios (PCM B1, CGCM A2, and GFDL A1FI) in northeastern forests. Methods. We used the LANDIS PRO forest landscape model to simulate forest succession and tree harvest under current climate and three climate change scenarios from 2000 to 2300. We analyzed the effects of climate change on AGB and tree species distribution. Results. AGB increased from 2000 to 2120 irrespective of climate scenario, followed by slight decline, but then increased again to 2300. AGB averaged 10 % greater in the CGCM A2 and GFDL A1FI scenarios than the PCM B1 and current climate scenarios. Climate change effects on tree species distribution were not evident from 2000 to 2100 but by 2300 some northern hardwood and conifer species decreased in occurrence and some central hardwood and southern tree species increased in occurrence. Conclusions. Climate change had positive effects on forest biomass under the two climate scenarios with greatest warming but the patterns in AGB over time were similar among climate scenarios because succession was the primary driver of AGB dynamics. Our approach, which simulated stand dynamics and dispersal, demonstrated that a northward shift in tree species distributions may take 300 or more years.
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CitationWang, Wen J.; He, Hong S.; Thompson, Frank R.; Fraser, Jacob S.; Dijak, William D. 2017. Changes in forest biomass and tree species distribution under climate change in the northeastern United States. Landscape Ecology. 32(7): 1399-1413. https://doi.org/10.1007/S10980-016-0429-Z.
KeywordsDemography, Disturbance, Dispersal, Forest landscape model, LANDIS PRO, LINKAGE II, Occurrence
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