The stability of methane hydrates at continental margins faces a significant threat from rising ocean temperatures. This scenario could potentially trigger the release of substantial (yet unconstrained) amounts of methane into the overlying water column and eventually into the atmosphere. Within marine sediments, the biologically mediated process of anaerobic oxidation of methane (AOM) is critical in mitigating such benthic methane discharge. However, AOM is not always ‘super’-efficient. There are two reasons why.
Considerable quantities of soil organic carbon (SOC) can be sequestered in agricultural land by adopting practices broadly known as carbon farming. Two main options for SOC sequestration in arable land are to (1) replace annual crops for perennial crops such as grass or forage legumes, and (2) grow cover crops. Experimental evidence shows that additional perennials and cover crops in temperate agriculture can sequester ca. 300-600 kg C/ha/year.
Hélène Blanchoud présentera son HDR [habilitation à diriger des recherches] le vendredi 12 janvier 2024. Titre : "Entre stratégies de mesure et modélisation, comment appréhender le transfert des pesticides à l’échelle des bassins versants ?"
Titre : Evaluation des ressources en eau dans les aquifères de socle dans la région du Guéra (Tchad) : combinaison d’approches géologiques, hydrogéologiques, géophysiques, géochimiques et d'apprentissage automatique
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