Marginal imprint of human land use upon fire history in a mire-dominated boreal landscape of the Veps Highland, North-West Russia ...

• Main Authors: Drobyshev, Igor, Ryzhkova, Nina, Niklasson, Mats, Zhukov, Alexei, Mullonen, Irma, Pinto, Guilherme, Kryshen', Alexander
• Format: Dataset
• Language: English
• Published: Dryad 2022
• Subjects: FOS Agriculture, forestry, and fisheries; North-West Russia
• Online Access: https://dx.doi.org/10.5061/dryad.x69p8czkf; https://datadryad.org/stash/dataset/doi:10.5061/dryad.x69p8czkf

Spatially explicit reconstructions of fire activity in European boreal forests are rare, limiting our understanding of factors driving vegetation dynamics in this part of the boreal domain. We have developed a spatially explicit dendrochronological reconstruction of a fire regime in a mire-dominated landscape of the Veps Nature Park (North-West Russia) over the 1580-2000 CE period. We dated 74 fire years using 164 fire-scarred living and dead Scots pine (Pinus sylvestris L.) trees collected on 31 sites. The historical fire cycle was 91.4 years (90% confidence intervals, CI 66.2–137.6 years) over the 1580–1720 period, decreasing to 35.9 (CI 28.1–47.6 years) between 1730 and 1770, and then increasing again to 122.7 years (CI 91.0–178.0 years) over the 1780–2000 period. The reconstructed forest fire history featured a number of patterns clearly deviating from the trends documented in previous Northern European reconstructions. The most striking feature was the absence of a period with increased fire activity ... : We sampled 31 sites, each one to two ha, during 1999, 2001 and 2004. Each fire reconstruction site represented an area of one to two hectares. To ensure an equal distribution of the sampling effort among sites, we inventoried each site for 1.5 h, by thoroughly searching the area for the presence of living and dead trees with fire scars. We usedchainsaws to extract wedges from living trees and snags and, in the case of stumps, we extracted cross-sections. We collected between five and 12 samples at each site, acquiring a total of 164 samples of Scots pine (Pinus sylvestris L.) via 69 living and 95 dead trees. All of our sites were located at least six km away from the nearest villages. ...