Effect of Shade on Germination and Growth of Salmonberry.

摘要

Salmonberry (Rubus spectabilis Pursh.), which forms a major component of shrubby vegetation in coastal areas, occurs mainly west of the Cascade Range in Oregon and Washington, south to California, and north to Alaska. Its preferred habitat is along streams and on benches and moist slopes. Salmonberry is especially common under red alder (Alnus rubra) and frequently is found under mature to overmature conifer stands. Following timber harvest, it often develops into dense thickets and delays or prevents forest regeneration. This report describes salmonberry development under various shade levels in the forest and in a forest opening. Data were collected during silvicultural studies of conifer seedling establishment on the same plots. (Author)