Kohsak:
Factors controlling fluxes and coastal aquatic storage of carbon at the superhumid continental margin of the southern Andes
- Duration:
- 01.03.2011 - 28.02.2013
- Project coordinated by:
- University Trier
- Contact (IOW):
- Prof. Dr. Helge Arz
- Funding:
- DFG - Deutsche Forschungsgemeinschaft
- Partners:
-
Technische Universität Braunschweig (TUBS)University Trier
Investigations and quantifications of regional carbon sinks and remineralisation are important to improve the knowledge of processes of the global carbon cycle, especially with respect to the global warming. During the Holocene globally important amounts of carbon have been stored reversibly in peat bogs and peaty soils as well as in sapropel-like sediments of fjords and lakes at the superhumid continental margin of southernmost Chile. But the effect of past and future changes in the westerly-controlled precipitation as well as temperature and/or sea level fluctuations concerning changes of the carbon budget is still unexplored. While previous studies concentrated on the C org accumulation in the peaty soils, this project aims to analyse and to quantify the carbon transfer (as DOC, POC) from terrestrial into aquatic reservoirs and its dependence of climatic, morphological and ecological factors at selected representative sites. Furthermore the controlling mechanism of the quatic accumulation and remineralisation of organic matter will be investigated based on sediment cores from lakes and fjords along a 200 km long transect across this continental margin. The project tries to improve the knowledge of processes and controlling mechanism of carbon sinks and its remobilisation.
Publikationen
- Ríos, F., R. Kilian, C. B. Lange, O. Baeza-Urrea, H. W. Arz, M. Zindorf, R. De Pol-Holz and F. Lamy (2020). Environmental and coastline changes controlling Holocene carbon accumulation rates in fjords of the western Strait of Magellan region. Cont. Shelf Res. 199: 104101, doi: 10.1016/j.csr.2020.104101