The Department Biogeochemical Processes explores the key processes and organisms that regulate exchanges of energy, water and elements between ecosystems and their surroundings. We use observations, experiments and models to improve understanding of how human activities are altering ecosystem function, and the consequences of those changes for sustainability and regional/global climate.
We explore several aspects of ecosystem function and how it is altered by climate and land use:
- Allocation of the products of photosynthesis among respiration, storage, growth, transfer to the rhizosphere and defense
- Factors determining the age and transit time of carbon in soils
- Links between microbial community function and the diversity of organic compounds and gases found in soils and groundwater
- Landscape scale processes such as windthrow, herbivory, and fire
- Understanding how environmental conditions are recored in the isotopic composition of biomarker molecules
Congratulations to , who successfully defended his thesis on the "Compartmental systems as Markov chains: age, transit time, and entropy". Fortuntaly, the defense could take place in person, albeit closed to the public.
Alice Orme is a new PhD student in the Molecular Biogeochemistry group of Gerd Gleixner. For her thesis, she will focus on "Decoding the molecular signals of dissolved organic matter". Welcome, Alice!
April 9, 2019:
Michelle Robin, Master student at the Instituto Nacional de Pesquisas da Amazônia (INPA), is currently visiting the institute. She studies VOCs within the ATTO project under the supervision of Eliane Gomes-Alves. Michelle will be here until May 19th and is staying in office B1.019. Welcome!
January 18, 2019:
Members from our department are convening or co-convening sessions at this years EGU 2019 general assembly. They are:
|1||Dai, J., Liu, H., Wang, Y., Guo, Q., Hu, T., Quine, T., Green, S., Hartmann, H., Xu, C., Liu, X., Jiang, Z. (2020). Drought-modulated allometric patterns of trees in semi-arid forests. Communications Biology, 3: 405. doi:10.1038/s42003-020-01144-4.|
|2||Chen, H., Liu, X., Blosser, G. D., Rücker, A., Conner, W. H., Chow, A. T. (2020). Molecular dynamics of foliar litter and dissolved organic matter during the decomposition process. Biogeochemistry. doi:10.1007/s10533-020-00684-5.|
|3||Hartmann, H., Bahn, M., Carbone, M., Richardson, A. D. (2020). Plant carbon allocation in a changing world – challenges and progress: introduction to a Virtual Issue on carbon allocation. New Phytologist, 227(4), 981-988. doi:10.1111/nph.16757.|
|4||Willms, I. M., Rudolph, A. Y., Göschel, I., Bolz, S. H., Schneider, D., Penone, C., Poehlein, A., Schöning, I., Nackea, H. (2020). Globally abundant “candidatus Udaeobacter” benefits from release of antibiotics in soil and potentially performs trace gas scavenging. mSphere, 5(4): e00186-20. doi:10.1128/mSphere.00186-20.|
|5||Pries, C. H., Angert, A., Castanha, C., Hilman, B., Torn, M. S. (2020). Using respiration quotients to track changing sources of soil respiration seasonally and with experimental warming. Biogeosciences, 17(12), 3045-3055. doi:10.5194/bg-17-3045-2020.|