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

Dernière mise à jour : Mai 2018

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TROL - Toits potageRs et extensifs : biOdiversité, soLs et pratiques

Financé dans le cadre de l'Appel à projet Emergence 2016, le projet TROL se déroulera sur 2 ans (2017-2018)
Poster TROL Nov16

Porteur du projet : Sophie JOIMEL & Claire CHENU (ECOSYS)


  • Partenaires non académiques : Exp'AU


Face aux enjeux sociologiques et écologiques actuels du développement des territoires urbains, certaines initiatives publiques visent à encourager l’accroissement des espaces végétalisés urbains. Parmi ceux-ci, les toits végétalisés (production de végétation alimentaire ou ornementale) font l’objet de questionnements forts pour permettre leur développement à l’échelle du territoire urbain, en termes de conception et de services écosystémiques rendus.

Le projet « TROL » se propose de mener une investigation sur les sols des toits végétalisés et leur capacité à servir de support à la biodiversité. Le territoire investigué sera la région parisienne qui est devenu, ces dernières années, un lieu de création de sites pilotes de végétalisation des toits à l’échelle nationale voir internationale. La pluralité des systèmes mis en place sera investiguée en termes de pratiques concernant la conception tout autant que l’entretien de ces espaces, et permettra de créer une typologie des toits végétalisés. L’objectif sera ensuite d’évaluer la qualité physico-chimique ainsi que biologique de ces toitures selon cette typologie. La qualité de ce support bio-physico-chimique sera mise en regard des interactions biodiversité végétale-pollinisateurs-faune du sol. L’évaluation de cette biodiversité sera enfin comparée à la perception de la biodiversité par les acteurs afin de permettre une optimisation des services, en particulier celui de support de biodiversité, rendus par ces toits.