Revolutionary
Re-vegetation Techniques for Haig-Brown Kingfisher Creek
With project construction soon to get underway, representatives of the parties
involved in the Haig-Brown Kingfisher Creek restoration project gathered at the Haig-Brown
Kingfisher Creek Society office on Monday, July the 6th. Working with the premise that this
project will provide a considerable net gain in fish habitat, the group has worked out the final
details and concerns related to flood diversions, sediment control, fish passage, gradient, stream
excavation, flow rates and re-vegetation.
Map of planned creek route.
Click on map for larger version. (32K)
|
The goal for this summer is to complete the excavation of about 950 metres of new
stream channel, and have it vegetated by September. This deadline is critical because the
succeeding months may prove too cold for seed crops to germinate, take root, and stabilize the
new stream banks. Left with no vegetation, the high winter waters could likely erode much of
the newly graded banks, causing major sedimentation problems downstream.
Revolutionary techniques are currently being developed that will leave the freshly
dug stream channel complete with large woody debris, new vegetation, and pre-existing cover.
Challenges associated with accomplishing this primarily involve removing unwanted organics
(i.e. the old soil), and importing the new materials (clay bed liner, cobble, gravel, and large
woody debris) in a way that is reasonably efficient for the machine operators, but will not impact
the surrounding ecosystem.
Top of page.
|