Recruitment and early growth of eastern white pine (Pinus strobus) regeneration after partial cutting and site preparation

Abstract

Eastern white pine (Pinus strobus L.) is an important tree species in eastern North America, but regenerating it can be difficult. White pine regeneration was assessed for the first 5 years after partial cutting, site preparation and underplanting in 110-year-old stands of eastern white pine using a randomized block experimental design. The best conditions for establishment of white pine natural regeneration did not favour early seedling growth. Establishment of white pine seedlings was best in uncut, scarified plots. The fastest growing seedlings with the best nutrient status were in areas that received partial cutting and brush control. Planted trees have maintained their initial growth advantage and, so far, loss or injury from damaging agents is low. Partial cutting and site preparation applied periodically in high-value, productive and long-lived eastern white pine stands could improve timber quality and enhance structure and diversity, and may result in multi-aged pine stands with some old-growth features.