Posters

SSS5.8
Biochemical turnover and recycling of organic C in soil 

Stability of soil functioning is closely related to biochemical turnover and microbial recycling of carbon (C) and nutrients. Despite numerous studies aimed on soil organic matter (SOM) formation, accumulation, and decomposition, most of them consider only one direction: formation or decomposition, sorption or mineralization. Consequently, the questions of C turnover and nutrients recycling remain opened.
This session invites contributions to cycles of organic substances in soil, turnover processes and rates, as well as recycling of nutrients and soil organic matter compounds by microorganisms. We appreciate studies focused on turnover mechanisms of fast and slow cycling pools, as well as on substances preferably reutilized by bacteria and fungi. Investigations based on an application of isotope labeling (e.g. 13C, 14C, 15N, 33P, 18O), as well as pools dating approaches are very welcome. Soil and environmental controls of turnover and recycling rates are of a special interest.

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Convener: Anna Gunina | Co-conveners: Bruno Glaser, Matthias Kaestner, Yakov Kuzyakov
Orals
| Thu, 11 Apr, 16:15–18:00
 
Room -2.20
Posters
| Attendance Fri, 12 Apr, 08:30–10:15
 
Hall X1

Attendance time: Friday, 12 April 2019, 08:30–10:15 | Hall X1

Chairperson: Anna Gunina, Bruno Glaser, Matthias Kästner, Yakov Kuzyakov
X1.184 |
EGU2019-16331
Plant litter biochemistry controls C partitioning into CO2 and soil organic matter fractions
Luís Fernando Januário Almeida, Thiago Massao Inagaki, Luis Carlos Colocho Hurtarte, Ivan Francisco de Souza, Ivo Ribeiro da Silva, and Carsten W. Mueller
X1.185 |
EGU2019-1042
Arbuscular mycorrhiza enhances soil C sequestration by higher rhizodeposition and reduces soil organic matter decomposition
Jie Zhou, Huadong Zang, Sebastian Loeppmann, Matthias Gube, Yakov Kuzyakov, and Johanna Pausch
X1.186 |
EGU2019-19006
Why soils are losing C after grazing abandonment? Effects of traditional pastoral activity on soil biochemical properties
Olga Gavrichkova, Gaia Pretto, Andrea Scartazza, Tommaso Chiti, Michele Mattioni, Maria Cristina Moscatelli, Roberto Pini, and Carlo Calfapietra
X1.187 |
EGU2019-2191
Quantify the effects of shrub encroachment on soil organic carbon molecular-components in Inner Mongolian grasslands
Luhong Zhou, He Li, Haihua Shen, Yunping Xu, Yinghui Wang, Aijun Xing, Yankun Zhu, Shangzhe Zhou, and Jingyun Fang
X1.188 |
EGU2019-18575
Modification of the RothC model for simulating soil organic matter turnover in double rice cropping systems in southern China
Guiying Jiang, Jin Zhou Wang, De Li Liu, Ming Gang Xu, Qin Hai Huang, and Nan Sun
X1.189 |
EGU2019-10856
Calibration, stability analysis and structure of SOC microbial models from a microbial biomass fumigation dataset
(withdrawn)
Claudia Cagnarini, Lorenzo Menichetti, Francesco Sarnari, and Giancarlo Renella
X1.190 |
EGU2019-9260
| Highlight
Microbial necromass in soil organic matter (SOM) and its impact on soil processes and properties
Matthias Kaestner, Anja Miltner, and Chao Liang
X1.191 |
EGU2019-2475
Contrast patterns of microbial residues accumulation and contribution to SOC from tropical to boreal forests in eastern China
Guoping Chen, Suhui Ma, Lai Jiang, Di Tian, Aijun Xing, Anlong Zou, Haihua Shen, Chengjun Ji, Chengyang Zheng, Hongbo He, Biao Zhu, and Jingyun Fang
X1.192 |
EGU2019-1390
Temperature sensitivity of soil organic matter mineralization depends on N fertilization: Comparison of four Q10 estimation approaches
Huadong Zang, Evgenia Blagodatskaya, Yuan Wen, Lingling Shi, Mingsheng Fan, and Yakov Kuzyakov
X1.193 |
EGU2019-18820
Turnover and influencing factors of low molecular weight dissolved organic N in a paddy soil under long-term fertilisation practices
Jinyang Wang, Tida Ge, and Davey L. Jones
X1.194 |
EGU2019-1638
| Highlight
Long-term stabilization of labile carbon in microbial biomass and its residues – A question of microbial N demand?
Nele Meyer, Outi-Maaria Sietiö, Kevin Mganga, Bruno Glaser, and Kristiina Karhu
X1.195 |
EGU2019-17187
Nitrogen deposition has contrasting effects on particulate and mineral associated soil organic carbon in a subtropical evergreen broadleaf forest
Jungang Chen, Wen Xiao, Chengyang Zheng, and Biao Zhu
X1.196 |
EGU2019-17325
Future precipitation patterns in agroecosystems affected carbon and nitrogen cycling – a green manure stable isotope labelling study
Andrea Watzinger, Andreea Spiridon, Simon Leitner, Berthold Helene, Johannes Hösch, Erwin Murer, Johannes Wagenhofer, Herbert Formayer, Wolfgang Wanek, and Rebecca Hood-Nowotny
X1.197 |
EGU2019-4526
Interaction between root hairs and soil P controls the root-priming of soil organic matter decomposition
Robert Bradley, Gabriel Boilard, Eric Paterson, Lawrie Brown, Tim George, and Allan Sim
X1.198 |
EGU2019-18541
Recycling of extracellular metabolites exceeds biomass de-novo synthesis
Ezekiel Bore, Yakov Kuzyakov, and Michaela A. Dippold
X1.199 |
EGU2019-18555
DNA-SIP enabled determination of carbon flow from rice-residue into microbial communities in soils under different fertilization regimes
Ning Ling and Yali Kong
X1.200 |
EGU2019-18761
Soil depth influences the responses of C-, N-, and P-acquiring hydrolases to P and N applications in a sub-tropical Chinese fir plantation
Xinyu Zhang, Chuang Zhang, Yang Yang, Huimin Wang, Xiaoli Fu, Fusheng Chen, Yakov Kuzyakov, Sophie M. Green, Jennifer A.J. Dungait, and Xiangmin Fang
X1.201 |
EGU2019-19018
Long term manure fertilizers build up SOC via modulating of soil bacterial communities
Luo Yu, Xu Jiangming, and Philip Brookes