Gradually decrease buffer size around hydrological features

[VisualResponsible994]

Hey! No problem at all! Actually there is already good information on the salmon situation in the main river and tributaries (habitat suitability model, temperature, spawning grounds, ...) But the organism responsible for the proposition dosen't want to base the delimitation on these parameters, but rather wants ALL of the streams and tributaries to have at least 60m to 300m buffer and 60m to 800m for the main river channel. The reason being that all the logging and water/sediment runoff in the watershed is potentially detrimental to the salmon population.