Data from "Millennial disturbance-driven forest stand dynamics in the Eastern Canadian taiga reconstructed from subfossil logs"

These two datasets in the format tab-delimited text file (Plots.txt and Sobfossil_logs.txt) contain the data used in the article "Millennial disturbance-driven forest stand dynamics in the Eastern Canadian taiga reconstructed from subfossil logs", published in Journal of Ecology.

 

Each row in Plots.txt contains data on a sampling plot (10 x 10 m) used to characterize the structure and composition of the present-day lakeshore forest at the site L18 or the site L20. Column headings are described below:

Plot = Plot ID

Lake = Lake ID

LivingSpruces = Number of living spruces in the plot (No.)

LivingFirs = Number of living firs in the plot (No.)

LivingFirs2 = Number of living firs ≥ 2 cm DBH in the plot (No.)

LivingFirsReg = Number of living firs among saplings and seedlings in the plot (No.)

LivingTamaracks = Number of living tamaracks in the plot (No.)

LivingTamaracks2 = Number of living tamaracks ≥ 2 cm DBH in the plot (No.)

LivingTamaracksReg = Number of living tamaracks among saplings and seedlings in the plot (No.)

Snags = Number of snags in the plot (No.)

Stumps = Number of stumps in the plot (No.)

Ncwd = Number of coarse woody debris pieces in the plot (No.)

Nliv = Number of living trees in the plot (No.)

Nreg = Number of saplings and seedlings in the plot (No.)

Nliv2 = Number of living trees ≥ 2 cm DBH in the plot (No.)

Nliv6 = Number of living trees ≥ 6 cm DBH in the plot (No.)

Nliv12 = Number of living trees ≥ 12 cm DBH in the plot (No.)

Age = Time since the last stand-replacing fire in the plot (i.e. maximum number of tree-rings per cored tree after applying a correction for coring height) (years)

BAliv = Basal area of living trees ≥ 2 cm DBH in the plot (m2 plot-1)

MeanBAliv = Average basal area per living tree ≥ 2 cm DBH in the plot (m2 plot-1)

BAsnags = Basal area of snags in the plot (m2 plot-1)

BAstumps = Basal area of stumps in the plot (m2 plot-1)

 

Each row in Sobfossil_logs.txt contains data on a subfossil log sampled in the littoral zone facing the selected lakeshore segments at L18 or L20. Column headings are described below:

ID = Subfossil log ID

Start = Year of the first measured ring (AD year)

End = Year of the last measured ring (AD year)

Length = Segment length (years)

Plot = Nearest lakeshore plot

Cluster = Cluster of the nearest lakeshore plot

Pith = Presence of the pith (1 = pith well preserved; 0 = missing pith)

First_ring = Year of the first ring in the cross-section (AD year)

Last_ring = Year of the last ring in the cross-section (AD year)

Fire = Fire evidence (Charred_branch_tips or Charred_trunk)

Species = Species of the subfossil logs (Spruce or Fir)

Pith_offset = Pith offset (years)

Subsequent columns = Ring widths according to cambial ages (1/100 mm)

 

Further details can be found in the published article.