Forest Soils-Site Index Studies in Maine1
- Harold E. Young2
The field, laboratory and analysis technique employed by Coile and his students in forest soils-site index studies in the South have been tried on a modest scale in Maine. A White Pine study based on 16 plots located in 16 different White Pine stands in the vicinity of Orono, Maine, yielded a regression equation which correlated site index with the depth of the A horizon and the percentage of stones in the B horizon. As both of these factors increase, the site index decreases. This was field checked in a series of white pine stands within a 50 mile radius of Orono and in the southern part of the state along the Maine Turnpike. Data were also collected on 16 plots in spruce-fir stands on the Penobscot Experimental Forest and this yielded a regression equation correlating the site index of spruce with the depth of the A horizon and the inhibitional water value of the A horizon. As both of these increase, the site index for spruce decreases. It is apparent that Coile's methods apply in Maine. Further study based on many more plots and covering a wider range of conditions are essential to obtain equations that can be used in practical forest management.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © .