Figure 1
From: Evaluating Douglas-fir and western hemlock volume growth in response to thinning and fertilisation
Graphs of stand volume (m3/ha) versus total age for Douglas-fir and western hemlock. Volume trajectories at three levels of site index are shown. No thinning or fertilisation was simulated. Douglas-fir site index 21: 
; Douglas-fir site index 29: 
; Douglas-fir site index 37: 
; western hemlock site index 25:
; western hemlock site index 29: 
; western hemlock site index 35: 
.