Hubbard Brook Experimental Forest: Valleywide Plot Tree and Sapling Inventory – 1995, 2005, 2015

The valley-wide plots are a grid of 431 sites along fifteen N–S
transects established at 500-m intervals spanning the entire Hubbard
Brook Valley. The plot network was designed by Paul Schwarz for
spatial analysis of tree species distribution patterns within the
valley. Multiple above- and below-ground attributes have been measured
on these plots. This dataset includes forest inventory data at 10 year
intervals, for 1995, 2005, and 2015. The full survey takes three
seasons to complete, with the datatable listing the exact measurement
interval for each tree.

Data are included for both trees and saplings on 371 core plots (all
surveys) and 60 densified plots (1998, 2008).

Locations of plots in this study can be found in the following
dataset:

Hubbard Brook Experimental Forest Valleywide Plots: GIS Shapefile
(2022.)

https://doi.org/10.6073/pasta/440b176372e0cdeb341731aea816b67c

These data were gathered as part of the Hubbard Brook Ecosystem Study
(HBES). The HBES is a collaborative effort at the Hubbard Brook
Experimental Forest, which is operated and maintained by the USDA
Forest Service, Northern Research Station.

These data have been used in a number of publications including:

Schwarz, P.A., Fahey, T.J., Martin, C.W., Siccama, T.G., and Bailey,
A. 2001. Structure and composition of three northern hardwood–conifer
forests with differing disturbance histories. For. Ecol. Manage.
144(1–3): 201–212. doi:10.1016/S0378-1127(00)00371-6.

Schwarz, P.A., Fahey, T.J., and McCulloch, C.E. 2003. Factors
controlling spatial variation of tree species abundance in a forested
landscape. Ecology, 84(7): 1862–1878.
doi:10.1890/0012-9658(2003)084[1862:FCSVOT]2.0.CO;2.

van Doorn, N.S., Battles, J.J., Fahey, T.J., Siccama, T.G., and
Schwarz, P.A. 2011. Links between biomass and tree demography in a
northern hardwood forest: a decade of stability and change in Hubbard
Brook Valley, New Hampshire. Can. J. For. Res.
41(7): 1369–1379.
doi:10.1139/X11-063.

Cleavitt, NL; AB Clyne and TJ Fahey. 2019. Epiphytic macrolichen
patterns along an elevation gradient in the White Mountain National
Forest, New Hampshire. J. Torrey Bot. Soc.
146(1): 8-17.

Cleavitt, NL; Battles, JJ, Fahey, TJ, and Blum, J. 2014. Determinants
of survival over seven years for a natural cohort of sugar maple
seedlings in a northern hardwood forest. Can. J. For.
Res.44 (9): 1112-1121.