The effects of disturbance on pitch pine age class structure

Holt, Amy
Tom Wessels, MA
Department of Environmental Studies
The age-class structure of the pitch pine in the community dominated by this species was studied on Black Mountain in Dummerston, Vermont, to determine the effects of past fires on tree mortality and seeding establishment. One period of intensive regeneration occurred between 1910 and 1950 with minor regeneration in the periods 1790-1815 and 1950-1980. Two fires were recorded on the mountain in 1911 and around 1940. The results of the study suggest that pitch pine may be partially maintained by disturbances, but, not exclusively b y fire. Other factors, such as hurricanes, and in 1778 and 1938, may have played an important role in the maintenance of the pitch pine community.

Read Full Text