Skip to main content

Displaying 1 - 4 of 4

Effects of fire and fire suppression on mortality and mode of reproduction of California black oak (Quercus kelloggii Newb.)

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

Postglacial vegetation of Canada

Ritchie
Post-glacial Vegetation of Canada brings together all the available information about the complex history of vegetational and environmental change in Canada since the last Ice Age. As the lands began to emerge from under the ice, they provided a…
Type: Document
Year: 1987

The importance of archeological sites related to the naval stores industry in Florida

Forney
[no description entered]
Type: Document
Year: 1987

Precision of ring dating in tree-ring chronologies

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