Tree ring data from the Niwot Ridge subalpine zone, 2017 - 2018.

Tree cores were collected across a range of diverse stand types and
topographic positions in 2017 and 2018 to examine changes in tree
growth as a response to changing climate in the subalpine forest of
the Colorado Front Range, USA. Tree cores were collected for all
present species in the subalpine zones; Engelmann spruce (Picea
engelmannii), subalpine fir (Abies lasiocarpa), lodgepole pine
(Pinus contorta) and limber pine (Pinus flexilis). We extracted core
from ~180 trees from 3 large permanent plots across a range of
species and sizes classes within each plot. The cores were then
processed using WinDENDRO software. This dataset includes field data
taken on each tree from which a core was extracted, the original
WinDENDRO files for each coree.g. bark thickness, height, etc.), 2)
MRS4 .txt fil output from WinDENDRO, 3) MRS5 .txt fil output from
WinDENDRO, 4) MRS7.txt fil output from WinDENDRO, The WinDENDRO,
outputs will be used to reconstruct a time series of radial growth
for each tree in each plot to examine whether the topoclimatic
position affects tree growth (by species and stand types) and
whether tree growth has changed with warming temperatures.