Introduction: context and advanced of the production of Regional ecological coherence scheme (regional ecological network): questions, used identifications, gaps

Abstract

After the context and objectives of the Green and blue frame, its implementation is quickly described in its three spatial levels (national, regional and local). An analysis of the state of progress and identification methods of core area of biodiversity and corridors in the regions is proposed. Observed recurring difficulties and deficiencies lead to proposals to ensure that research is involved in the next step: the assessment within six years of the Regional ecological coherence scheme (regional ecological network).