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Écologie fonctionnelle dans les nappes phréatiques : liens entre flux de matière organique, activité et diversité biologiques

Abstract : Food webs play a crucial role in regulating the fluxes of matter and energy within ecosystems. Artificial recharge of aquifers relies heavily on the ability of groundwater biocenoses to degrade organic matter fluxes that is a condition to maintain the quality of groundwater. The objective of this work is to determine the impact of increased dissolved organic carbon supply on the trophic interactions between the microbial communities and invertebrate assemblages at the upper layers of groundwater artificially recharged with stormwater. Through a combined field and laboratory experimental approach, this work allows ranking the strength of relationship between dissolved organic carbon fluxes, environmental conditions, activity and diversity of microbial communities and abundance of invertebrate assemblages
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https://tel.archives-ouvertes.fr/tel-00587833
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Submitted on : Thursday, April 21, 2011 - 3:19:08 PM
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Arnaud Foulquier. Écologie fonctionnelle dans les nappes phréatiques : liens entre flux de matière organique, activité et diversité biologiques. Sciences agricoles. Université Claude Bernard - Lyon I, 2009. Français. ⟨NNT : 2009LYO10142⟩. ⟨tel-00587833⟩

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