Seventy Years of Vegetative Change in a Managed Ponderosa Pine Forest in Western Montana: Implications for Resource Management

摘要

The report interprets changes in forest vegetation resulting from timber harvests and a marked reduction in the occurrence of fire. A series of photographs at about 10-year intervals, starting in 1909, provide the basis for describing how a ponderosa pine forest has changed since settlement. The reason for changes and implications on wildlife, timber, esthetics, and livestock grazing are discussed.