Displaying 61 - 70 of 85
Bray
From the text... 'The purpose of this report is to attempt to evaluate the evidence for widespread human manipulation of the environment in the Midwestern United States. The study will focus primarily on the states of Illinois, Indiana, Iowa,…
Type: Document
Year: 1995
Finney, Martin
Fire intervals were derived from analysis of fire scars on samples taken from 14 redwood (Sequoia sempervirens D. Don (Endl.)) stumps throughout Annadel State Park, California. Samples were obtained from small redwood groves that are isolated within…
Type: Document
Year: 1992
Van Pelt, Swetnam
[no description entered]
Type: Document
Year: 1990
Biswell
[no description entered]
Type: Document
Year: 1989
Bicknell
[no description entered]
Type: Document
Year: 1989
Patterson, Sassaman
[no description entered]
Type: Document
Year: 1988
Kauffman, Martin
Numerous studies, historical accounts and archaeological evidence suggest that the historical density and abundance of black oak (Quercus kelloggii Newb.) in mixed conifer forests was much greater than today. Reasons for the decline of this species…
Type: Document
Year: 1987
Anderson
Land managers are becoming increasingly aware that cultural resources are a fragile and nonrenewable part of the environment that must be protected. Legislation has been enacted at the Federal and State levels to protect these resources. There is…
Type: Document
Year: 1985