Climate change is expected to modify the frequency, duration and intensity of drought and rainfall events. This will have a profound impact on soil functioning and biogeochemical cycling. In many terrestrial ecosystems, CO2 pulses upon rewetting are the dominant pathway for soil carbon loss. Understanding the mechanisms controlling this phenomenon is therefore necessary to predict soil carbon storage under future climate change scenarios.

This Action Group was set up to integrate researchers from different environments in order to identify knowledge-gaps and tackle outstanding and new challenges in this field.

Main activities and outcomes:
1. DRI-MEE international workshop (7-8 November 2019). Five invited speakers, in addition to contributed oral and poster presentations, and thematic discussion. 44 participants. We identified knowledge-gaps and built new collaborations.

2. Conference session at European Geosciences Union (7 May 2020). The session “Responses of terrestrial biogeochemical cycles to climate change” gave a broad overview of empirical and modelling studies across different scales. Emphasis was put on elucidating how climate change affects terrestrial biogeochemistry and on the interactions between soil, microorganisms, plants and fauna.

3. Short term research missions (summer 2020-ongoing). They are meant to bridge the gap between empirical and modelling environments and incorporate new understanding into soil carbon-climate models.RES
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