Growth of California Red Fir Advance Regeneration After Overstory Removal and Thinning

摘要

Overstory removal and thinning can reduce competition and increase growth of advance regeneration under old-growth California red fir (Abies magnifica). To guide selection of leave trees, land managers need to know which tree characteristics are associated with growth after release and thinning. Periodic growth in diameter and height was tested for its relationship to stem and crown characteristics of about 200 red fir saplings in a stand in northeastern California. Strongest correlations were between growth and the independent variables percent live crown and 3-year pretreatment height growth.