Influence of Change in Crown Position on Diameter Increment : Environmental Influences on Tree and Stand Increment. Mensuration, Growth and Yield Instruments and Methods in Forest Mensuration. Proceedings

1986

S. 34-39

2 Tab., 13 Lit. Ang., En, Zfsg. En

Unselbständiges Werk

200017637

Successive measurements over a 20-year period on individual trees in Pennsylvania Allegheny hardwood stands were used to study the effect of a change in relative crown position on annual diameter increment at breastheight. Multiple linear regressions using indicator variables to designate a s hift in crown position were significantly better than regressions based on diameter alone for predicting diameter increment. These results suggest that there may be value in developing individual tree growth models utilizing crown position as an independent variable.