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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal IN-SYLVA France ONF FCBA CIRAD CNPF OFB Université de Rouen

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ALTER network (Alternatives to Herbicides)

Network and its devices names
ALTER network (Alternatives to Herbicides)
Coordination : Champenoux, 54280, France
Network description

The ALTER network initiated in 2011 aims to design and evaluate methods of site preparation before planting. It aims to quantify the technical and environmental performance of different site preparation methods. Site monitoring is planned over approximately 10 years.

The network consists of 9 sites, 6 of which are currently active, all located in acidic stations with vegetation dominated by eagle fern or mullein, and presenting major difficulties for successful planting. Each site has unit plots planted in oak (sessile, or pedunculate) and unit plots planted in pine (Scots, maritime, or laricio).

Each site compares different site preparation modalities (Multi-Function Subsoiler, Reversible Scarifier, Herbicide, Control, Local Modality). Each unit plot consists of about 100 plants and is repeated 2 to 3 times per site, and a follow-up of the plants and accompanying vegetation is carried out annually in the first years. Crop profiles have been carried out in certain modalities in 5 sites. The sites are also used for studies on plant diversity and on soil organic carbons.

Services offer

Data collected from all sites is centralized and available for use in collaborative projects.


The network is coordinated by the Pôle Renfor Silva UMR (INRAE Nancy). Experimental monitoring is carried out by the various network partners (INRAE, ONF RDI department, FCBA) depending on the geographical proximity of the teams. The various partners also ensure links with land owners and managers..

Work description and access modalities

The network's facilities are open to researchers from other teams, to answer research or technical development questions, within the framework of formalized collaborations (collaborative project or research agreement). The sites are also open to teachers and trainers, for all levels of training.

Access unit and cost

The cost is determined according to each project


No particular facilities