Description Usage Arguments Value Note References See Also
slenderness ratio is an important index of stability of trees and branches
1 | treeSR(treeObject, vectorObject)
|
treeObject |
an object of |
vectorObject |
an object of |
an object of class SR
The coefficient takes into account branch angle: SL_c=\frac{L}{D} \cdot (1 + cos(a)), where a is the branch angle (0 degrees = horizontal, 90 degrees vertical). Vertical branches have SL = SL_c
Mattheck, C. and Breloer, H. The Body Language of Trees: A Handbook for Failure Analysis (Research for Amenity Trees) 1995, HMSO (London)
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