B063
Understanding Mineral – Organic Carbon Interactions in Permafrost Environments
Understanding Mineral – Organic Carbon Interactions in Permafrost Environments
Session ID#: 160927
Session Description:
Ongoing warming is thawing permafrost soils and unlocking soil organic carbon and mineral elements (e.g., N, P, Si, Fe, Al, Mn). Crucially, soil mineral constituents (clay minerals and oxides) and mineral elements mediate the degradation or sequestration of organic carbon in plants, soils, lakes, rivers and estuaries. However, how, where and to what extent mineral – organic carbon interactions dampen or amplify greenhouse gas emissions from thawing permafrost remains a matter of ongoing debate. The goal of this session is to bring together researchers who analyse mineral – organic carbon interactions across the permafrost landscape, e.g., in soils, lakes, rivers and coasts. We encourage submissions from studies spanning a range of techniques and approaches, e.g., sequential extractions, geochemistry, isotope geochemistry, spectroscopy, microscopy and modelling.
Index Terms:
0428 Carbon cycling [BIOGEOSCIENCES]
0461 Metals [BIOGEOSCIENCES]
0470 Nutrients and nutrient cycling [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]
Primary Convener: Catherine Hirst, Université Catholique de Louvain, Earth and Life Institute, Environmental Sciences, Louvain-La-Neuve, Belgium
Conveners: Sophie Opfergelt, Université Catholique de Louvain, Earth and Life Institute, Environmental Sciences, Louvain-La-Neuve, Belgium and Julien Fouche, Université de Montpellier, Montpellier, France
See more of: Biogeosciences