The simulation of natural fractures – The Why, When & How – Philosophy, Theory & Practice.
This further study discusses the tolerance of pruning-stubs from natural an artificial breaks – along with coronet cuts – as an alternative to conventional pruning measures – to exceed the accepted compartmentalisation capacities (after CODIT principle) of the given tress species.
The types of tree cuts described in conventional tree- care literature simulate the natural fracture and shedding processes that generally no longer function beyond 10 cm in diameter (Hirons & Thomas, 2018).
Research suggests that cuts should not exceed 5 cm in diameter for weakly compartmentalizing species and 10 cm for strongly
compartmentalizing species (Stobbe, Dujesiefken & Kleist, 1998; Dujesiefken und Stobbe, 2002).
Artificial fractures and coronet cuts simulate natural fractures with no limit to diameter by replicating broken stumps with cracks and jagged edges as observed in nature (Fay, 2003).
However, the variety and unpredictable nature of fractures make them difficult to simulate.
A lesson by
David S. Restrepo, Tree Technician City of Paris, Paris, France