Projets par an
Carbon cycling models consider soil carbon sequestration a key process for climate change mitigation. However, these models mostly focus on abiotic soil processes and, despite its recognized critical mechanistic role, do not explicitly include interacting soil organisms. Here, we use a literature study to show that even a relatively simple soil community (heathland soils) contains large uncertainties in temporal and spatial food web structure. Next, we used a Lotka–Volterra-based food web model to demonstrate that, due to these uncertainties, climate change can either increase or decrease soil carbon sequestration to varying extents. Both the strength and direction of changes strongly depend on (1) the main consumer’s (enchytraeid worms) feeding preferences and (2) whether decomposers (fungi) or enchytraeid worms are more sensitive to stress. Hence, even for a soil community with a few dominant functional groups and a simulation model with a few parameters, filling these knowledge gaps is a critical first step towards the explicit integration of soil food web dynamics into carbon cycling models in order to better assess the role soils play in climate change mitigation.
|Pages (de - à)||686-693|
|Nombre de pages||8|
|Numéro de publication||3|
|Etat de la publication||Publié - 1 avr. 2020|
Empreinte digitaleExaminer les sujets de recherche de « Food web uncertainties influence predictions of climate change effects on soil carbon sequestration in heathlands ». Ensemble, ils forment une empreinte digitale unique.
- 1 Terminé
Predicting the effects of climate change on C sequestration by healthlands : the role of multi-trophic interactions between soil organisms
Rineau, F., DE LAENDER, F. & Reyns, W.
1/10/15 → 30/09/19
- 1 Discours invité
Integrating environmental change into biodiversity-ecosystem function research: implications and a way forward
Frédérik De Laender (Orateur)6 mars 2018
Activité: Discours ou présentation › Discours invité