13/03/2018    Christophe Orazio.


Site code DS31

Location Saint Maurice la Fougereuse

Region Poitou-Charentes

Country France

Local name Bois de Noirpin

Partner IDF-CNPF


Site characteristics

Orientation: FLAT, Slope:0.0°, Soil :STAGNOSOLS, Bedrock : andesite

PH :5.7,



Short History of the site

The global objectives is to develop a new silviculture to slow down the impacts of climatic changes and to maintain the high quality wood production of oak. The objective of the demonstration sites is to study the impact of the late thinning on the sanitary state (problem of oak dieback) of oaks stands of Quercus robur.The demonstration sites is installed in the high sensibility area for oak. These high sensibility areas were validated in the project : « Climate Change: The risks for the oak stands in the Atlantic region” in France. This project was managed by the CNPF – IDF (Lemaire 2009). Stand is about 80 years old. These stands are affected by dieback due to climate change. The studies conducted in France (Protocol ARCHI by Drenou et al. 2011, not yet published) demonstrate that it is possible to distinguish oaks able to surmounting a stress (tree in the reversible sanitary state) from those which are not capable (tree in the irreversible sanitary state). This diagnostic (with four different sanitary states) turns out to be indispensable to help the forester to select the most resistant trees in the context of the climate change. The sanitary state of each oak in the demonstration site was identified. After, for all the different sanitary state, the forester test a localized thinning (“détourage”). The sanitary state of this thinned oak stand will be compared with the sanitary state of not thinned oak stand. Each demonstration site will be composed of two devices: 1 device « témoin » = no thinning 1 device thinning = « détourage »