Furthermore, the site index system developed by Berrill
(2004) for New Zealand C. lusitanica plantations are shown
together with curves developed by the present study for
Gambo–Shashemene (Fig. 6a) and Munesa (Fig. 6b) for
equivalent site index ranges. Clearly the Gambo–Shashemene
site index curve differs from the site index curve developed by
Berrill (2004) for C. lusitanica in New Zealand. Whereas, New
Zealand height growth development has exhibited a similar
shape like at Munesa. Even, New Zealand site index system is
somewhat steeper.