Advancing our understanding of how biotic and abiotic processes control soil organic matter stocks, stability, stabilisation mechanisms, biochemical transformations, and loss from terrestrial ecosystems remains a major focus in biogeochemistry today. This session aims to facilitate discussions that improve our understanding of how complex biotic and abiotic processes interact in the terrestrial ecosystem, in particular during periods of natural- or anthropogenic-induced change and across a range of scales from molecular, profile, plot, landscape, and global scales to control soil organic matter dynamics. Furthermore, the session welcomes submissions that focus on: (a) relationship of soil organic matter transformations with length and intensity of weathering processes that modify minerals and create a distinct soil matrix in which biological processes take place; (b) dynamics of soil organic matter in deep soil layers using experimental and modeling approaches and (c) plant-soil interactions on soil carbon and nutrient cycling. This session will contribute to improving our understanding and future predictive capabilities of carbon dynamics in the earth system by bringing together scientists working on improving our mechanistic understanding of key soil organic matter processing, with the explicit goal of promoting inclusion of the interplay of biology, climate, geochemistry and pedology into large-scale model frameworks.

Convener: Asmeret Asefaw Berhe | Co-conveners: Boris Jansen, Sophie Cornu, Erika Marín-Spiotta, Karen Vancampenhout
| Thu, 11 Apr, 08:30–12:30
Room -2.20
| Attendance Thu, 11 Apr, 14:00–15:45
Hall X1

Thursday, 11 April 2019 | Room -2.20

Chairperson: Asmeret Asefaw Berhe and Erika Marin-Spiotta
08:30–08:45 |
| solicited
| Highlight
Caitlin Hicks Pries, Owen Krol, Pamela Templer, Serita Frey, Tanner Aiono, and Beth Bruna
08:45–09:00 |
Nicholas O.E. Ofiti, Cyrill U. Zosso, Emily F. Solly, Jennifer L. Soong, Margaret S. Torn, Guido L.B. Wiesenberg, and Michael W.I. Schmidt
09:00–09:15 |
Biao Zhu, Yin Chen, and Yanhui Hou
09:15–09:30 |
Laure Soucemarianadin, Moritz Reisser, Samuel Abiven, Claire Chenu, François Baudin, Manuel Nicolas, Lauric Cécillon, and Pierre Barré
09:30–09:45 |
Vera Baumert, Julian Heitkötter, Cordula Vogel, Ingrid Kögel-Knabner, and Carsten W. Mueller
09:45–10:00 |
Lars Vesterdal, Petr Hedenec, Haifeng Zheng, Yan Peng, Luciana Bachega, and Christina Steffens
10:00–10:15 |
Tobias Kloeffel, Peter McIntosh, and Carsten W. Mueller
Coffee break
Chairperson: Jansen, Boris and Karen Vancampenhout
10:45–11:00 |
Michael Herre, Bernd Marschner, Julian Heitkötter, and Janet Rethemeyer
11:00–11:15 |
Nicola Dal Ferro, Ilaria Piccoli, Francesco Morari, and Antonio Berti
11:15–11:30 |
Sebastian Doetterl, Asmeret Asefaw Berhe, Peter Finke, and Jennifer Harden
11:30–11:45 |
Melanie Brunn and Yvonne Oelmann
11:45–12:00 |
Sophie F. von Fromm, Valerié F. Schwab, Susan E. Trumbore, and Marion Tichomirowa
12:00–12:15 |
Controls over organic carbon storage in wetland soils across climatic region in Queensland, Australia
Lu Yao, Daniel Brough, and Chengrong Chen
12:15–12:30 |
Stefanie Mayer, Angelika Kölbl, Jörg Völkel, and Ingrid Kögel-Knabner