The effect of the abundance and rapidity of ectomycorrhiza and root tip formation on
conifer seedling survival and growth was investigated on disturbed forest sites in southwest
Oregon and northern California. Experiments were conducted over a range of
community types and environmental conditions. A range of sources of transfer soil...
Throughout the Applegate watershed, dense, overstocked, immature stands of mixed
conifers and hardwoods and declining stands of mature conifers present significant
and complex silvicultural problems. Stand stagnation is common, as is loss of largediameter
conifers from insects and wildfire. Treatments designed to maintain or
encourage development of large-diameter conifers have...
