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Arbre FontaineArbre Fontaine
CChanger l'image de fondhanger l'image de fond
Le Principe desLe Principe des
Arbres FontainesArbres Fontaines
Le Principe des
Arbres Fontainess
Pourquoi Arbres « Fontaines » ?
Les gouttelettes du brouillard
Grâce à leur canopée
(Etage supérieur de la forêt, partie
haute des arbres)
I. El Hierro
II. Garoe
III. Recherches et expérimentations
IV. Résultats
V. Conclusion
VI. Sources
PLAN
http://logodatabases.com/unesco-
logo.html/unesco-wallpaper
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources 
Réserve de
biosphère depuis
le 20 janvier 2000

Ile volcanique
appartenant à
l’Archipel des
Canaries, dans
l'océan Atlantique
https://fr.wikipedia.org/wiki/El_Hierro
EL HIERRO
≈ 700 m
≈ 1500
m
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
EL HIERRO
Où sont les arbres fontaines ?
Laurus azorica Erica arborea
Juniperus canariensis
Collecteur
Possibilité de récupérer
l’eau de brouillard
connue depuis les
années 1402-1405.
Disparition en 1610 à la
suite d’un ouragan.
En 1991, replantation
d'un Garoe (un laurier)
au même endroit
Source : https://fr.wikipedia.org/wiki/Fichier:Arbre_de_l%27Isle_de_Fer_(Description_de_l%27Univers,_t._3,_pl._82).jpg
Laurier endémique des
Canaries de l'espèce
Ocotea Foetens.
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Garoe
mbaufildeleau.canalblog.com
Phénomène météorologique
Amas de fines gouttelettes d'eau
Nuage reposant sur la surface du sol
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Qu'est-ce que le brouillard ?
© Ramajo Lisa
Glaçons
Arbre
synthétique
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Essai création brouillard n°1
© Ramajo Lisa
Arbre
synthétique
Bouilloire
Sèche cheveux
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Essai création brouillard n°1
© Ramajo Lisa
Buée
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Essai création brouillard n°1
© Ramajo Lisa
Ventilateur
Glaçons
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Essai création brouillard n°2
© Ramajo Lisa
Arbre
synthétique
Plaque
chauffante
Vapeur
d'eau
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Essai création brouillard n°2
© Ramajo Lisa
Filet de pomme-de-terre
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Création du prototype d'un arbre fontaine
© Ramajo LisaPolystyrène
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Création du prototype d'un arbre fontaine
© Ramajo Lisa
Tube en PVC
Branches
en fil de
fer et
feuille en
filet de
pomme-
de-terre
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Recherches et
expérimentations
Création du prototype d'un arbre fontaine
© Ramajo Lisa
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Expérimentation dans une serre tropicalisée de l'IRD
jeudi 10 mars 2016
Recherches et
expérimentations
© Ramajo Lisa
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Expérimentation dans une serre tropicalisée de l'IRD
Gouttes d’eau captées par l’arbre
Recherches et
expérimentations
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Résultats

Environ 33 L d'eau brumisée

Pièce d'environ 120 m³

Pulvérisation pendant 95 min
Sapin synthétique

Surface: 1,4 km²
environ

Eau récupérée : 0,01 L
(0,03 % de l'eau rejetée)

Volume récupéré par
m² : 0,28 x 10-6
L/m²
Arbre en filet

Surface: 0,24 m²
environ

Eau récupérée : 0,515 L
(1,6 % de l'eau rejetée)

Volume récupéré par
m² : 2,15 L/m² environ
Conclusion
I. El Hierro
II. Garoe
III. Recherches et 
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
l
De plus, peut-être que notre brouillard n'était 
pas si mal ?
Surface Sapin > Surface Prototype
Donc proportionnellement, le Sapin 
aurait dû récupérer plus d'eau
Mais : collecteur Prototype était plus 
grand que celui du Sapin => 
Résultats faussés
Il aurait fallu :
Refaire plusieurs fois l'expérience
Utiliser des collecteurs de même taille
I. El Hierro
II. Garoe
III. Recherches et 
expérimentations
IV. Résultats
V. Conclusion
VI. Sources
Nous remercions :
Mr Alain Gioda, chercheur à l’IRD,
Mr Denis Combes, responsable Patrimoine et
logistique des serres tropicalisées de l’IRD,
Mme Christine Genuist, professeur de PC,
Mme Dominique Chirpaz, professeur de SVT,
Mme Muriel Tapiau, chargée de communication et du
services éducatif de l'IRD.
Sources
I. El Hierro
II. Garoe
III. Recherches et
expérimentations
IV. Résultats
V. Conclusion
VI. Sources

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Arbres fontaines d'El Hierro (El Hierro)