Notes: Rootstock Mass of Coppiced Platanus occidentalis as Affected by Spacing and Rotation Length
The root mass per unit land area for Platanus occidentalis was determined 9 years after planting 1-0 seedlings. Trees had been planted at 0.3 x 1.2, 0.6 x 1.2 and 1.2 x 1.2 m spacings and coppiced after two growing seasons in the field. Rotations of 1, 2, and 7 years were then imposed. Rootstocks coppiced annually had significantly less rootstock mass (16.0 tons/ha) than those harvested on longer cycles. No significant difference was found between the 2- and 7-year rotations, which averaged 22.8 and 25.2 tons of dry rootstock mass per hectare, respectively. Spacing did not affect rootstock mass per unit land area. Rotations of 2 years or longer and relatively wide spacings are recommended for short rotation forestry. Forest Sci. 26:545-547.
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Document Type: Miscellaneous
Affiliations: Senior Lecturer, Department of Forestry, University of Ibadan, Ibadan, Nigeria
Publication date: 1980-12-01
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