Olivier Troccaz

Université de Rennes 1 | UR1 · UMR CNRS 6566 CReAAH

Direct and indirect effects from human activity have dramatically increased nutrient loading to aquatic inland and estuarine ecosystems. Despite an abundance of studies investigating the impact of agricultural activity on water quality, our understanding of what determines the capacity of a watershed to remove or retain nutrients remains limited. T...

Direct and indirect effects from agriculture, urbanization, and resource extraction have dramatically increased nutrient loading to aquatic inland and estuarine ecosystems. The capacity of a watershed to remove or retain nutrients is a function of biotic and abiotic conditions across the terrestrial-aquatic gradient including soil, groundwater, rip...

Territ'Eau provides a set of tools for landscaping and spatial management of agricultural activities in order to better control the quality of the water. It is intended for collective farmers, local authorities, water unions, SAGEs ... The Internet site http://agro-transfert-bretagne.univ-rennes1.fr/Territ_Eau/ presents a synthesis of knowledge av...

While many scientific studies show the influence of agricultural landscape patterns on water cycle and water quality, only a few of these have proposed scientifically based and operational methods to improve water management. Territ'eau is a framework developed to adapt agricultural landscapes to water quality protection, using components such as f...

Territ'eau constitue une méthode et des outils développés dans le cadre de l'Agro-transfert Bretagne à destination des ingénieurs du développement, et élaborés pour mieux prendre en compte les pratiques agricoles et l'aménagement de l'espace rural dans la gestion de la qualité des eaux superficielles. Territ'eau vise des bassins versants de quelque...

site web Organisation Ecole thématique

L'objectif de cette étude est d'estimer quels sont les échanges préférentiels qui lient le marais salé de la Baie du Mont Saint Michel au milieu côtier adjacent, et quels en sont les impacts sur l'évolution générale des herbus.Naturellement, ce travail est à replacer dans le contexte du concept d'outwelling, dont la CEE a voulu notamment établir un...

The salt marshes of the Mont St. Michel bay represent a complex system in continuous change, mostly due to the frequent exchanges with the coastal waters through tidal processes. In such ecosystems, water is an important element insofar as it represents the common vector of flows between and among several ecosystem compartments. The purpose of the...