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Debris Flows - Colluvial Hollows

Colluvial hollows will not produce much sediment in the snowfall- dominated landscape, but could contribute higher amounts in the rainfall-dominated area (Savage 2005, Jarrett and Costa 1982).

Fire indirectly influences the balance between shear stress and shear strength of the hillslope and this can be exacerbated in steeper colluvial hollows.

Fire accelerates rates of ravel and surface erosion, depositing sediment in hillslope hollows, a common initiation point for debris slides (Dietrich et al., 1982).

Floods - Colluvial Hollows

(Information compiled by Liz Gilliam)

There is no significant flooding in the colluvial hollows in the Front Range because of insufficient precipitation intensity and contributing area.

Image of colluvial hollows

(Photo by E. Wohl)


Click a link below to learn about disturbance regimes in each process domain:

Colluvial Hollows Ephemeral Channels Glaciated Confined Glaciated Partially Confined Glaciated Unconfined Unglaciated Confined Unglaciated Partially Confined Unglaciated Unconfined
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