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            <gco:CharacterString>Relevés de banques de graines en prairies temporaires (Pleine-Fougères, 2016) - Zone Atelier Armorique ZAAr</gco:CharacterString>
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        <gco:CharacterString>28 parcelles de prairies temporaires d'âge 6 ou 7 ans (occupation du sol en cultures avant); 
Parcelles gérées par pâturage et (éventuellement fauche ponctuellement)
Au sein de chaque parcelle, 10 relevés de banques de graines ont été effectués selon un plan d'échantillonnage systématique (des relevés floristiques ont été effectués aux même points -&gt; cf fiche relevés floristiques)
Chaque relevé de banque de graines a été effectué sur une surface de 5x5m en réalisant 7 prélèvements aléatoires de carottes de sol de 4cm de diamètre et de 20cm de profondeur séparées en trois profondeurs de sol: 0-5cm, 5-10cm, 10-20cm. 
L'ensemble des prélèvements des carottes de sol a été poolé au niveau de la parcelle par profondeur de sol (trois profondeurs de 70 carottes par parcelle). 
Les prélèvements ont été mis en chambre froide pour lever la dormance pendant 4-6semaines. Les échantillons ont été mis à germer en serre après tamisage selon la méthode de Ter Heerdt (1996)
Toutes les espèces végétales ont été identifiées</gco:CharacterString>
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