Woody debris

Woody debris may refer to:


 * Slash (logging), coarse and fine woody debris generated during logging operations or through natural forest disturbances
 * Coarse woody debris, fallen dead trees and the remains of large branches on the ground in forests
 * Large woody debris, logs, branches, and other wood that falls into streams and rivers
 * Log jam, an accumulation of large woody debris that can span an entire stream or river channel