Forest Practices Code - Channel Assessment Procedure Guidebook
Figure A2-1. Hillslope and stream channel coupling (after Church 1983). Decoupled hillslopes are identified when sediment or debris, mobilized by a landslide, is interrupted by a valley flat. Partially coupled hillslopes are identified when only a portion of a landslide deposit can be stored on a valley flat. Coupled hillslopes are identified when sediment or debris directly enters the stream channel.
