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13-17 May 2013
Tucson, Arizona
US/Arizona timezone
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Multi-century forest fire history in Scandinavia

Presented by Dr. Igor DROBYSHEV on 16 May 2013 from 10:00 to 10:20
Type: Oral Presentation
Session: Fire Ecology II
Track: Fire ecology

Content

Forest fires are one of the main disturbance agents in boreal and temperate ecosystems. To decipher large-scale temporal and spatial patterns of past fire activity in Scandinavia, we analyzed the synchronicity of dendrochoronologically reconstructed fire events in a large network of sites covering a wide geographical gradient (56.5 - 67.0 º N and 9.3 - 20.5 º E) over AD 1400-1900. We identified large fire years (LFY) as years with regionally increased forest fire activity and located the geographical centers of climatic anomalies associated with synchronous LFY occurrence across the region, termed LFY centroids. By analyzing the spatial pattern of LFY centroids, we identified two regions with climatically-mediated synchronicity of fire occurrence, located south and north from 60º N. Northern LFYs showed much stronger association with Europe-wide periods with reduced summer precipitation. We speculate that the northern and mid-boreal forests might be more sensitive to past summer climate, as compared to the southern boreal forests.

Place

Location: DoubleTree
Room: Salon D

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