Observation and simulation of flow in vegetation canopies

An immensely complicated array of leaves, branches, and other plant components, both living material and dead, forms a highly porous barrier to air flow. Despite the visual impression of high density, the actual volume occupied by plant material is a very 

Gayev and J.C.R. Hunt (eds.), Flow and Transport Processes with Complex Obstructions, 179-198. 2007 Springer. 

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