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I NTERNATIONAL G REEN W ALL C ONFERENCE - 4-5 th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK For a real integration.

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Presentation on theme: "I NTERNATIONAL G REEN W ALL C ONFERENCE - 4-5 th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK For a real integration."— Presentation transcript:

1 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK For a real integration of Biodiversity in Green Wall conception and maintenance 05/09/2014 National Museum of Natural History of Paris Natural Heritage Service Sophie COHEN & Philippe GOURDAIN I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

2 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Purpose : Improve knowledges about nature conservation  Manage databases and give access to informations on the natural heritage  National Inventory of Natural Heritage : To identify our structure :  Workforce : actually 90 employees : naturalist, expert, geomatic specialist, …  50 studies or expert assessment/ years  Management of 12 national species inventories  14 billions data managed Natural Heritage Service (SPN)  Manage national scientific programs  Assess the state of conservation of biodiversity : develop standard methods, tools, reference documents… ©P. GOURDAIN I NTERNATIONAL G REEN W ALL C ONFERENCE 4-5 th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

3 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Selection of some sites to test ecological index (quarries, landfill sites, etc.) Monitoring and evaluation after ecological settlement Objective: Improve the consideration of biodiversity on company policies (50) (77) (40) Collection of good practices, scientific overview Action plan on biodiversity II.Evaluation of scientific issue : Index development I.Scientific expertise on different sites compagnies and workplaces Several part of the conventions : IV.Monitoring of action plans : land settlement etc. III.Management recommandations Partnership agreements on biodiversity ©P. GOURDAIN ©GoogleMaps ©P. GOURDAIN I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

4 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Building and biodiversity Approach Diversity of species : Fauna and Flora At local scale Define positive management measures for biodiversity Assess and monitor the advantages of long-term managements Define positive management measures for biodiversity Assess and monitor the advantages of long-term managements How preserve and receive biodiversity in urban context ? What kind of biodiversity ? How control negative impacts of these activities ? ©S. COHEN I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

5 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Building and biodiversity Overview of the situation : local biodiversity (common and rare), type of project, area ecological functions How the site can be placed into the larger surrounding context ? Site Functionality Consider the project in a wider area according to the biodiversity  What actions to what potential benefits ? ©GEOPORTAIL I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

6 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Site permeability : animals displacement Site placed into the larger surrounding context : Local biodiversity, connectivity, pedology Diversification of species habitat : reproduction, alimentation, all the life cycle (common and rare biodiversity) Site Functionality issues Time scale : is it possible to wait for the plant to grow ? Aesthetic : can we accept non homogenous green wall? Supply of provision : local plants and substrates Stepping Stones Building ©S. COHEN ©O. DELZONS ©GEOPORTAIL I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

7 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK 4 major types of Green Walls Young technology : expansion since 2006 Lack of Feedback Diversity of systems Few entreprises are working on biodiversity thematic Majority of systems are based on aesthetic aspect Unclear legal situation : no professional rules Continuous sheet (Patrick Blanc system ) Climbing plant Substrate filled metallic cage : system more used in France Modular planted wall French context of Green Wall ©S. COHEN I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Plante & Cité, ARRDHOR, 2012 : studies of administrator green wall experience feedback. Few figures (based on 250 wall studied) : -Small surface : 75% < 50 m² -strong investment : 300 < 700 < 1500 € HT/m² -15 to 20 plant / m² -10 to 20 % species replace / years -Maintenance : 25 < 60 < 180 € HT/m²/an

8 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Be careful to Over-estimate of consumption Invasive species Be careful to Over-estimate of consumption Invasive species Green Wall Give priority to system with : Less consumption of raw material (water, substrate) Less management Renewable resources : fertilization (compost), substrate Control system of consumption (water, fertilizer) Native species adapted to less maintenance, climate conditions and stress Local substrate (respect area pedology) Promote natural colonization/development Regular scientific monitoring (decrease over time) ©S. COHEN I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

9 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Less plants diversity but local species ( Hedera helix, Dioscorea communis, Lonicera periclymenum, … ) Be careful to invasives species : Parthenocissus sp., …. Green WallClimbing plants WeightLow Difficulties of implementation Easy Cost Material : Low Implementation : Low MaintenanceLow Few knowledge necessary Water consumptionLow Water stressLow sensibility FreezeLow sensibility Easy maintenance : Fertilization : compost Water : rainwater recuperation (emergency watering) Very interesting for birds and arthropods (Chiquet & al., 2013; Madre, 2014) Lines of research Place to natural recovery (stone wall) : lichen, moss Work on material : brick facade, porous substrate Combining green walls and green roofs : animals movement Lines of research Place to natural recovery (stone wall) : lichen, moss Work on material : brick facade, porous substrate Combining green walls and green roofs : animals movement Climbing plant Green Wall and lines of research Climbing plant green facades ©S. COHEN ©Végétal Local I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

10 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK 3.Implementation and maintenance ; 4.Communication : public awareness and education 5.Biological monitoring 1.Replace site into its context 2.Recreate permeable zones for biodiversity in urban areas and take into account the ecological characteristics : identify species/habitats issues (local scale), including local ordinary biodiversity; identify species movement capabilities (support site). 6.Increase knowledge concerning new technologies and materials to support biodiversity Conclusion ©S. COHEN ©P. GOURDAIN ©CEMAGREF I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

11 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Thank you for your attention ©C. FOURNIER I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK

12 I NTERNATIONAL G REEN W ALL C ONFERENCE th September 2014 The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK Type de mursCages métalliquesNappes continuesModules performésJardinières avec plantes grimpantes Type de végétalisationVerticale Verticale et horizontale Maillage Acier galvanisé, inox Maille treillis : 100 mm X 100 mm Hauteur : 500 mm Epaisseur de fil : 4.5mm // Plantes volubiles : section ronde de 4 à 30 mm Plantes à vrilles : treillage verticale et horizontale équidistant de 10 à 20 cm Arbrisseaux : treillis de 25 à 50 cm Espacement du treillis par rapport au mu : 5 cm Epaisseur150 à 180 mm Panneau en PVC : 1 cm Espace entre la structure et le mur : 4 cm Dépend du module/ Structure Cages métalliques préconstruites, fixées sur des rails, contenant un substrat retenu par un paillage tissé PP ou d’un feutre de fibres végétales planche de PVC expansé, film tissé de polypropylène, nappe d’irrigation, structure tubulaire en métal, cuve de récupération Dépend du moduletreillage en bois, câbles d’acier, fibres de verres Poids Dépend de l’épaisseur, dimension de la structure, et du type de substrat utilisé. Cage : Environ 8 kg vide et 68 kg avec substrat 7 kg / m² de panneau PVC expansé de 10 mm d’épaisseur 3 à 5 kg /m² pour la nappe d’irrigation 1 à 5 kg pour les plantes 20 à 50 kg / m² pour la structure métallique Dépend du moduleDépend des plantes utilisées : 1 à 50 kg/m² Consommation d’eau120 < 650 L/m²/an < 1600Entre 1,5 et 3 L/m²/jourDépend du module/ Substrat ou support Mélange de composés organiques et de minéraux inertes Nappe d’irrigation (aquanappe)Dépend du moduleTerreau Entretien 2 à 3 fois par an Cout 45 € HT/m²/an Au moins une fois par mois Cout 75 € HT/m²/an Dépend du module2 à 3 fois par an Type de murs brevetésGreenwall, Wallflore, Casa verde, VertiGreen F150, VegetEau, Vivagreen, Amytis, Canevaflor, Patrick BlancMobilane Façade, Vertiss Plus, Ductal, Texigreen,Vertiss Roll, Velplan Green Wall Substrate filled metallic cage Continuous sheetModular plantedClimbing plants WeightHighLowMediumLow Difficulties of implementation High Medium Easy Cost Material : High Implementation : High Material : Low Implementation : High Material : High Implementation : Low Material : Low Implementation : Low MaintenanceMediumHighLow Professional needed Few knowledge necessary Water consumptionMediumHighMediumLow Water stressSensibility MediumHigh sensibilityLow sensibility FreezeSensibility MediumHigh sensibilityLow sensibility I NTERNATIONAL G REEN W ALL C ONFERENCE th September The Green Wall Centre, Staffordshire University, Stoke-on-Trent, UK


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