Sinikka J. Paulus

PhD Student

Sinikka Paulus

Image: Sinikka Paulus

Office

Max Planck Institute for BiogeochemistryExternal link
Department Biogeochemical IntegrationExternal link
Albert Ludwigs University Freiburg / Herderbau Room 03053
79106 Freiburg / Germany

spaulus@bgc-jena.mpg.de
+49 3641 5-76232

Visit Sinikka Paulus at MPI-BGCExternal link

Research activity

  • Non-rainfall water input measurements and implications in arid ecosystems
  • Soil-plant-atmosphere interactions and the role of vegetation in the water cycle
  • Water stable isotope application in ecohydrology
  • Soil gas transport processes and soil respiration

Current project

I am currently analyzing concomitant and independent time series of water fluxes (lysimeters, sap flow, eddy covariance (EC)) jointly with time series of vegetation properties (spectral vegetation indices, dendrometer etc), and biometerological variables (temperature, vapor pressure deficit, soil moisture etc) in a Mediterranean tree grass ecosystem.

I am interested in

  • Robust flux estimates of all terrestrial water flux components: precipitation, evapotranspiration and condensation processes of atmospheric humidity- such as dew and capillary condensation, as well as soil vapor adsorption
  • The seasonal and interanual variability of these fluxes
  • Their implications for water and energy balances
  • Their effect on the biosphere

Publications

Jochheim H., S. Wirth, V. Gartiser, S. Paulus, C. Haas, H. Gerke, M. Maier: Dynamics of Soil CO2 Efflux and Vertical CO2 Production in a European Beech and a Scots Pine ForestExternal link. Frontiers in Forests and Global Change 5: 826298, 2022.

Paulus S., T. El-Madany, R. Orth, A. Hildebrandt, T. Wutzler, A. Carrara, G. Moreno, O. Perez-Priego, O. Kolle, M.G. Reichstein, M. Migliavacca: Lysimeter based evaporation and condensation dynamics in a Mediterranean ecosystemExternal link. Hydrology and Earth System Sciences Discussions 26: 6263–6287, 2022.

Haas C., S. Paulus, M. Maier, H. Gerke: Approach for using measured soil gas diffusion coefficients in Hydrus 1D with examples from forest soilsExternal link. Journal of Plant Nutrition and Soil Science 4: 183, 2020.

Kübert A., S. Paulus, A. Dahlmann, C. Werner, Y. Rothfuss, N. Orlowski, M. Dubbert: Water stable isotopes in ecohydrological field research: Comparison between in situ and destructive monitoring methods to determine soil water isotopic signaturesExternal link. Frontiers in Plant Science 11: 387, 2020.

Maier M., S. Paulus, C. Nicolai, K. Stutz, P. Nauer: Drivers of plot-scale variability of CH4 consumption in a well-aerated pine forest soilExternal link. Forests 8(6): 193, 2017.

Conference contributions

Paulus, S., T. El-Madany, R. Orth, A. Hildebrandt, M. Migliavacca (Talk): Multi-source characterisation of non-rainfall water inputs to a semi-arid ecosystem. 19. Lysimetertagung 2021.

Paulus, S., T. El-Madany, R. Orth, J.A. Nelson, A. Hildebrandt, M. Reichstein, T. Wutzler, A. Carrara, G. Moreno, M. Migliavacca (online Display): Adsorption of water vapor by soil in semi arid ecosystems: reconciling estimates from Lysimeters and Eddy Covariance. EGU General Assembly 2021.

Paulus, S., T. El-Madany, T. Wutzler, R. Orth, O. Perez-Priego, M. Reichstein, A. Carrara, G. Moreno, M. Migliavacca (online Display): Hidden water fluxes in a Mediterranean ecosystem: new insights into seasonal dynamics from lysimeter data. EGU General Assembly 2020.

Kübert, A., Y. Rothfuss, M. Götz, E. Kuester, S. Paulus, A. Dahlmann, K. Kuehnhammer, A. Piayda, C. Werner, M. Dubbert: Global Change Induced Threats Across Scales: Assessing the Impact of Extreme Drought and Nitrogen Loading on a Temperate Grassland. AGU Fall Meeting Abstracts 2019.

Paulus, S., A. Kübert, A. Dahlmann, C. Werner, Y. Rothfuss, M. Dubbert, N. Orlowski (Poster): Comparison between destructive and in situ monitoring methods of determination of soil pore water isotopic composition for addressing ecohydrological questions. EGU General Assembly 2019.

Paulus, S., H. Jochheim, S. Wirth, M. Maier (Poster): Calculating soil gas fluxes from gas concentration profiles: can we usestandard DS models or should we use site-specific DS models? EGU General Assembly 2015.