Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1427 résultats pour les termes de recherche: changement climatique

Affichage des résultats: 591 à 600

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Hydrodynamic time parameters response to meteorological and physical forcings : toward a stagnation risk assessment device in coastal areas

Identifying zones of stagnation and deposition of terrigenous matter or contaminants induced by human activity is a key issue in coastal areas. In this paper, circulation processes and potential contaminant stagnation and deposition zones were assess...

Trait coordination, mechanical behaviour and growth form plasticity of Amborella trichopoda under variation in canopy openness

Understanding the distribution of traits across the angiosperm phylogeny helps map the nested hierarchy of features that characterize key nodes. Finding that Amborella is sister to the rest of the angiosperms has raised the question of whether it sha...

Formation of new beaches from lahar deposits, Ambae volcano, Vanuatu

Lahar deposits resulting from the eruption of Ambae (Vanuatu) in 2017–2018 were transformed into black sand beaches at the discharge points of water flow paths. This occurrence represents a novel and unreported phenomenon for Ambae. This study prop...

The nurse plant Acacia spirorbis enriches ectomycorrhizal community composition of a target species: Tristaniopsis calobuxus

We investigated the suitability of Acacia spirorbis Labill., a tropical ectomycorrhizal (ECM) tree, as a nurse plant to improve the growth of Tristaniopsis calobuxus Brongn. & Gris seedlings for the restoration of nickel mines in New Caledonia. Rehab...

Formation of new beaches from lahar deposits, Ambae volcano, Vanuatu

Lahar deposits resulting from the eruption of Ambae (Vanuatu) in 2017–2018 were transformed into black sand beaches at the discharge points of water flow paths. This occurrence represents a novel and unreported phenomenon for Ambae. This study prop...

Millennial-aged organic matter preservation in anoxic and sulfidic mangrove soils: Insights from isotopic and molecular analyses

Mangrove forests are known as coastal carbon sinks, but the long-term (millennium-scale) preservation processes of organic matter (OM) in their soils and the role of sulphur in these processes are still not fully understood. These processes are cruci...

Advancing biomonitoring of eDNA studies with the Anaconda R package: Integrating soil and One Health perspectives in the face of evolving traditional ...

Soil health and One Health are global concerns, necessitating the development of refined indicators for effective monitoring. In response, we present the Anaconda R Package, a novel tool designed to enhance the analysis of eDNA data for biomonitoring...

Suivi des formations paraforestières et forestières de la Kwé Est

L'activité minière peut être source de perturbations potentielles et engendrer des impacts indirects sur la végétation alentour (poussières, espèces exogènes, modifications hydriques et perturbations des cours d'eau, coupes de bois illégale,...

Protocole d'échantillonnage et d'analyse temporelle des communautés coralliennes pour le suivi des impacts de l'usine de Goro Nickel

Méthodologie employée pour le suivi d'impact de l'activité minière de Goro. Suivi de la couverture corallienne, de l'Ichthyofaune, des macro invertébrés sur des transects. Suivi vidéo.Protocole d'échantillonnage et d'analyse temporelle des co...

Atelier marin : vers un suivi optimal des lagons et récifsSuivi environnemental du milieu marin

dans cette présentation, VALE donne une définition du suivi marin puis aborde le contexte (réglementation et caractéristiques des milieux). le réseau de suivi mis en place par l'industriel est également décris succinctement (indicateurs, méth...