Management of Austrian Black Pine on Marly Lands for Sustainable Protection Against Erosion (Southern Alps, France)

The old afforestations of Austrian black pine dating from more than a century ago on marly substrates in the French Southern Alps play a protective role against erosion and torrential floods. However, these forests have now reached maturity and it is necessary to consider their renewal within the framework of minimal management to ensure sustainable protection against erosion. We first present methods for determining and mapping priority areas for forestry actions on different spatial scales, after which we define various forestry application rules.