Predicting crown radius in eastern white pine (Pinus strobus L.) stands in New Hampshire.
Using data from 449 trees on 69 growth-and-yield plots located in southern and central New Hampshire, we developed models of crown radius for stand-grown eastern white pine (Pinus strobus L.) in New Hampshire. In addition to dbh, we tested single-tree measurements sometimes collected in forest inventories (such as live crown length and live crown ratio [LCR]), as well as simple variables to compensate for stand density and competitive position of the tree. A model using dbh, stand basal area (BA), and LCR provided the best predictions, but a model using dbh, stand BA, and the ratio of dbh to stand quadratic mean diameter proved nearly as accurate. We compare these equations to previously published equations for white pine.
Northern Journal of Applied Forestry
Society of American Foresters
Jordan, G.J., Ducey, M.J. Predicting crown radius in eastern white pine (Pinus strobus L.) stands in New Hampshire. (2007) Northern Journal of Applied Forestry, 24 (1), pp. 61-64.
Copyright © 2007 by the Society of American Foresters.