Category: General Publications
Title: Changes in Ponderosa Pine Bunchgrass Ranges in Northern Arizona Resulting from Pine Regeneration and Grazing
Author: Arnold, J.E.
Subject: Ponderosa pine (Pinus ponderosa), Understory, Logging, Grazing
Abstract: Ponderosa pine forests in northern Arizona, particularly in the immediate vicinity of Flagstaff and Williams, have undergone marked changes in herbaceous plant cover during the past fifty years as a result of logging and grazing. Large forested areas were clearcut around the turn of the century. Even the uncut timber stands were more open than they are today. Present forest conditions contrast strikingly with early photographic records and descriptions. A deficient undergrowth of seedling and sapling pines was reported in the forest surveys of 1901-1902 and as a consequence the forest floor was more fully occupied by herbaceous species. This may explain in part why early estimates of livestock greatly exceeded present numbers.
Source: Journal of Forestry
Publisher: Society of American Foresters