Forest Inventory of a Northern Hardwood Forest: Watershed 6, 2017, Hubbard Brook Experimental Forest

Forest inventory surveys were initiated in 1965, repeated in 1977, and
repeated at 5 year intervals after that; this data set was collected
in summer of 2017. The inventory consists of a total inventory of all
trees >=10 cm diameter-at-breast-height (dbh) on the whole of the
watershed (13.23 ha), as measured in each of the 208 25 m x 25 m
plots. Trees >=2 to <=10 cm dbh were subsampled using a 3 meter
wide strip along one edge of each 25 m x 25 m plot. With the addition
of tree tags in 2002 on all trees >=10 cm dbh, tracking of
individual trees is now possible. 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.