Tracking the carbon in Canadian peatlands
A portrait of biogeochemical research at the Institute of Landscape Ecology
Ecosystems are increasingly influenced by climate change and the climate can be influenced by ecosystem change. Feedbacks of this kind are a focus of biogeochemical research worldwide. The documentary illustrates how research proceeds in this field and gives answers on questions that are raised: What is our motivation to address scientific questions? Why do we investigate Canadian peatlands? What are the steps of a successful research project in this field? How does the teamwork between students and scientists look like? How does a day in the field look like? What have we learned from our investigations? And after all: Can science be fun?
New Publications at the ILÖK
- Große-Stoltenberg, A.; Hellmann, C.; Werner, C.; Oldeland, J.; Thiele, J. (2016): Evaluation of Continuous VNIR-SWIR Spectra versus Narrowband Hyperspectral Indices to Discriminate the Invasive Acacia longifolia within a Mediterranean Dune Ecosystem. Remote Sensing 8. doi: 10.3390/rs8040334
- Graham, E.B.; Knelman, J.E.; Schindlbacher, A.; Siciliano, S.; Breulmann, M.; Yannarell, A.; Beman, J.M.; Abell, G.; Philippot, L.; Prosser, J.; Foulquier, A.; Yuste, J.C.; Glanville, H.C.; Jones, D.; Angel, R.; Salminen, J.; Newton, R.J.; Bürgmann, H.; Ingram, L.J.; Hamer, U.; Siljanen, H.M.; Peltoniemi, K.; Potthast, K.; Bañeras, L.; Hartmann, M.; Banerjee, S.; Yu, R.-Q.; Nogaro, G.; Richter, A.; Koranda, M.; Castle, S.; Goberna, M.; Song, B.; Chatterjee, A.; Nunes, O.C.; Lopes, A.R.; Cao, Y.; Kaisermann, A.; Hallin, S.; Strickland, M.S.; Garcia-Pausas, J.; Barba, J.; Kang, H.; Isobe, K.; Papaspyrou, S.; Pastorelli, R.; Lagomarsino, A.; Lindström, E.; Basiliko, N.; Nemergut, D.R. (2016): Microbes as engines of ecosystem function: when does community structure enhance predictions of ecosystem processes? Frontiers in Microbiology 7. doi: 10.3389/fmicb.2016.00214
- Blüthgen, N.; Simons, N.; Jung, K.; Prati, D.; Renner, S; Boch, S.; Fischer, M.; Hölzel, N.; Klaus, V.H.;, Kleinebecker, T.M; Tschapka, M.; Weisser, W.W.; Gossner, M.M. (2016) Land use imperils plant and animal community stability through changes in asynchrony rather than diversity. Nature Communications 7: 10697 doi:10.1038/ncomms10697
- Fleischer, E.; Khashimov, I.; Hölzel, N.; Klemm, O.(2016): Carbon exchange fluxes over peatlands in Western Siberia: Possible feedback between land-use change and climate change. Science of the Total Environment 545–546: 424–433 doi: 10.1016/j.scitotenv.2015.12.073
- Lehmann, J.R.K.*; Münchberger, W.*; Knoth, C.; Blodau, C.; Nieberding, F.; Prinz, T.; Pancotto, V.A.; Kleinebecker, T.: High-Resolution Classification of South Patagonian Peat Bog Microforms Reveals Potential Gaps in Up-Scaled CH4 Fluxes by use of Unmanned Aerial System (UAS) and CIR Imagery. Remote Sens.2016, 8, 173. doi: 10.3390/rs8030173 * (equal authorship)
Small lakes with large effects?
The German Research Foundation supports a research project of the Ecohydrology and Biogeochemistry Group (PI: Christian Blodau) for a period of three years. Recently it has been discovered that inland waters cover much larger areas than previously assumed and likely represent significant sources of carbon dioxide and methane to the atmosphere; they may even provide relevant feedback in the climate-biosphere system. The seasonal and spatial dynamics of carbon fluxes of small and shallow inland waters is poorly understood, however. To begin rectifying this knowledge deficiency, the project will quantify the gas exchange between sediment surface water and the atmosphere in a shallow model system and establish controls on CO2 and CH4 emission and carbon sequestration. We focus on periods and zones that have great influence on annual balances of carbon, such as ice breakup, spring and fall. To this end, recent methodological advances in high resolution gas flux measurements will be utilized. Carbon fluxes will be related to environmental variables and internal biological and physical dynamics. Methanogenesis, methane oxidation and transport are key processes for the greenhouse warming potential of these systems and will be a focus of the investigations. To this end also 13C stable isotope balances will be employed.
The fog clears
Climate researchers: climate change and less air pollution explain why fog is decreasing worldwide
Fog is formed through a fine distribution of water droplets in the air. It is an everyday meteorological phenomenon – but it is becoming ever rarer. At hundreds of weather stations worldwide experts have been observing a decrease in the occurrence, or the intensity, of fog. “As to the reasons for this, all we could do in the past was speculate,” says Prof. Otto Klemm from Münster University. Klemm, a climatologist, and his colleague Prof. Neng-Huei Lin from Taiwan National Central University, have now jointly carried out investigations as to whether climate change – or lower levels of air pollution – might be the cause of the decline. In fact, their conclusion is that both of these could explain the decrease in fog.......