Displaying 51 - 60 of 60
Patterson, Sassaman
[no description entered]
Type: Document
Year: 1988
Romme, Despain
Large wilderness areas in National Parks and Forests offer some of our best opportunities for restoring natural disturbance regimes. High intensity fires, for example, can be permitted to burn with minimal interference. Yet even in large wilderness…
Type: Document
Year: 1988
Bonnicksen
[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
Keith
[no description entered]
Type: Document
Year: 1980
[no description entered]
Type: Document
Year: 1976
Wilhelm
From the Conclusions ... 'Prior to becoming a national park, Shenandoah had gone through periods of indiscriminate logging, hunting, livestock grazing, and burning. Then the area entered the National Park System and shifted abruptly to a regime of…
Type: Document
Year: 1973
Stewart
From the text...'The unrestricted burning of vegetation appears to be a universal culture trait among historic primitive peoples and therefore was probably employed by our remote ancestors. Archeology indicates that extensive areas of the Old and…
Type: Document
Year: 1956