Jessica Landgraf

Bereich/Position
Telefon
+49 (0)30 64181 976
Raum
418

Müggelseedamm 310, 12587 Berlin

Profile
Forschungsgruppe
Kompetenzen

PhD

Since 2020, Leibniz Institute of Freshwater Ecology and Inland Fisheries Berlin

Topic

“Using high-resolution isotopes and environmental data to assess effects of land cover on ecohydrological fluxes”

Publications

Decker, V., Falkenroth, M., Lindauer, S., Landgraf, J., Al-Lawati, Z., Al-Rahbi, H., Franz, S.O., and Hoffmann, G. (2021). Collapse of Holocene mangrove ecosystems along the coastline of Oman. Quaternary Research, 100, 52-76. doi:10.1017/qua.2020.96

Landgraf, J., Tetzlaff, D., Dubbert, M., Dubbert, D., Smith, A., & Soulsby, C. (2021). Xylem water in riparian Willow trees (Salix alba) reveals shallow sources of root water uptake by in situ monitoring of stable water isotopes. Hydrology and Earth System Sciences Discussions, 1-27. Preprint

Smith, A., Tetzlaff, D., Landgraf, J., Dubbert, M., & Soulsby, C. (2021). Modelling temporal variability of in-situ soil water and vegetation isotopes reveals ecohydrological couplings in a willow plot. Biogeosciences Discussions, 1-28. Preprint

Objectives

  1. Investigate the ecohydrological fluxes of the soil-plant-atmosphere continuum at high temporal and spatial resolutions
  2. Analyze the effects of different land use types on water partitioning using stable water isotopes
  3. Integrating field data into an ecohydrological model to quantify ecohydrological fluxes of the soil-vegetation-atmosphere interface

Methods

  1. Developing setup of real time in situ monitoring for soil & plant water isotope dynamics with field experiments at the Lake Müggelsee, Berlin Bayesian mixing model to identify root water uptake depths
  2. Destructive soil sampling with direct equilibrium method at various land use types at the rural Demnitzer Millcreek catchment, Brandenburg
  3. Conceptual model utilizing soil water isotopic compositions individually for the different land use types

Additional:

  • Eddy covariance
  • Climatic measurements (air temperature, precipitation amount, wind speed/direction, solar radiation, rel. humidity etc.)
  • Soil moisture and temperature
  • Sap flux
  • Stem size variation
  • Leaf area index (LAI)
  • Precipitation, groundwater, and surface water stable water isotope sampling
  • Laboratory sampling and measurements of stable water isotopes

Conferences

AGU 2020 – Poster “In-situ measurements of stable water isotopes in soils and plants to quantify ecohydrological fluxes in an urban setting”

AGU 2021 – Poster “In-situ monitoring of stable water isotopes in soil and xylem water reveals shallow sources of root water uptake in riparian Willow trees (Salix alba)”

Lebenslauf

Student assistant, 2015/2016 University of Bonn, research paleontology

Bachelor of Science in Geosciences, 2016 University of Bonn, focus paleontology

Scientific assistant, 2017/2018 University of Bonn, teaching hydrogeology

Master of Science in Geosciences, 2019 University of Bonn, focus environmental geology

Advanced education “Professional user of geographic information system with ArcGIS incl. Esri certificate”, 2019 WBS Training AG Göttingen

2022

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