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Stream restoration in forest areas

Replenish water retention capacity, restore aquatic habitats and ecological continuity, the biodiversity potential of forest streams and associated wetlands, while maximizing sustainable logging. "

This is the daring bet initiated by the Jura NFB in partnership with the University of Franche-Comté, the Grand Dole Urban Community and the Rhône Méditerranée Corse Water Agency on the national forest of Chaux (39) .

This massif is watered by a very dense hydrographic haired consisting of about 320 km of temporary streams, most of which feeds a small tributary of the Doubs, the Clauge. However, in the years 1950-1960, almost all of these watercourses were recalibrated or rectified. At the same time, innumerable sanitation ditches have been dug in the associated wetlands. The aim of this work was to optimize production and forestry operations.
Thirty years later, the perennial course of the Clauge had decreased by 7 km while the forest managers noticed a beginning of decline of certain oak stands. In an attempt to remedy these malfunctions, restoration work has been undertaken for about ten years on almost 30 km of temporary streams. The effectiveness of this operation is evaluated and monitored using a scientific device set up from the initial state. The first results are encouraging, both for aquatic environments and for the evolution of soil moisture.
We invite you to share different perspectives on original forest management experiences during this technical and scientific day.

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