Stream Restoration

The decline of Pacific Salomon stocks over the past century is the result of many factors, one of the key factors being the loss of stream habitat due to past land use practices. While the ultimate solution to the problem of habitat loss would be planning development based on the factors that could impact the watershed, streams already affected by humans are in need of rehabilitation, to restore the viability of the local habitat.

Restoration refers to actions that attempt to restore the natural dynamic equilibrium to a stream. Changes within a watershed, be they natural or human induced, impact on the stream, under a dynamic equilibrium, the net effect to the stream is a fluctuation in habitat over short periods, but stability in the system over the long term.

Restoration can take the form of passive or active restoration. Passive restoration involves the removal or minimization of chronic disturbances; and active restoration involves intervention and installation of measures to repair damage to stream structure. In both cases the goal is to create a structure that strengthens itself over time rather than degrading and requiring further restoration.

This portion of the site is intended to serve as an introductory resource highlighting the various restoration techniques available for the rehabilitation of disturbed stream channels and lost aquatic habitat.

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