Displaying 61 - 70 of 71
Biswell
[no description entered]
Type: Document
Year: 1989
Head
[no description entered]
Type: Document
Year: 1988
McAndrews
Excerpt
Type: Document
Year: 1988
Patterson, Sassaman
[no description entered]
Type: Document
Year: 1988
Hamilton, Taylor, Vogel
Evidence for early agriculture can be obtained from pollen profiles indicating forest clearance1. The practice of cultivation is widely believed to have been introduced into the interlacustrine region of central Africa by Bantu-speaking iron-…
Type: Document
Year: 1986
Keith
[no description entered]
Type: Document
Year: 1980
Fritts
[Description from Elsevier website] Tree Rings and Climate deals with the principles of dendrochronology, with emphasis on tree-ring studies involving climate-related problems. This book looks at the spatial and temporal variations in tree-ring…
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
Douglass
The purpose of this paper is to emphasize the precision of the dating of individual rings in long tree-ring chronologies by the use of methods and procedures classed under the name 'dendrochronology'. The operations are based on climatic impressions…
Type: Document
Year: 1946