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Channel Morphology and Natural Disturbance Regime:

The natural disturbance regime in a watershed combined with disturbance processes, LWD inputs (illustration 1) and sediment delivery shapes the watershed.

illustration 1

LWD Inputs

Longitudinal Patterns of LWD; Effectiveness of Controlling Channel Morphology.

Stream Order Effect of LWD Habitat Complexity
1 Very high Moderate
3 Very high High
5 High Very high
7 Low to moderate Moderate
9 Low to moderate Moderate


illustration of disturbance processes