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The study was conducted in a peri-urban area SE of Berlin, Germany, on the grounds of the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB). The study site is located roughly 200 m north of Lake Müggelsee, 38 m.a.s.l. It is surrounded by buildings (on average 10 m distance) and vegetation is a mosaic of extensive grassland and mature trees (~30-100 years old). Groundwater levels directly at the site are ~4 m below the ground surface (Umweltatlas Berlin, 2020) with limited annual variability (< 0.15 m). The study period was from April 1st to November 1st 2022 (i.e. a full vegetative period). Climate data (air temperature, precipitation amount, wind speed and direction, relative humidity, air pressure, global radiation) were accessed from the rooftop of IGB ~300 m away. On-site, we measured precipitation at the open grassland and relative humidity at the maple tree stem at 2 m height in south-east direction. Stable water isotopes of atmospheric water vapour (δv) and plant xylem water (δxyl) were measured in situ real-time and sequentially (automatic switch of tube) via cavity ring-down spectroscopy.
Meta-data file is attached.
More details on methods and study site to be found in the publications:
Ring, A.-M., Tetzlaff, D., Dubbert, M., Freymueller, J., and Soulsby, C. (2024): Assessing the impact of drought on water cycling in urban trees via in-situ isotopic monitoring of plant xylem water. Journal of Hydrology. - 633(2024), Art. 131020.
http://dx.doi.org/10.1016/j.jhydrol.2024.131020
Ring, A.-M., Tetzlaff, D., Birkel, C., and Soulsby, C. (2025), in review: Sub-daily dynamics of urban tree xylem water and ambient vapor. Hydrological and Earth System Sciences. Preprint.
https://doi.org/10.5194/egusphere-2025-1444
Birkel, C., Tetzlaff, D., Ring, A.-M., and Soulsby, C. (2025): Does high resolution in situ xylem and atmospheric vapor isotope data help improve modelled estimates of ecohydrological partitioning?. Agricultural and Forest Meteorology. 365(2025), 110467.
https://doi.org/10.1016/j.agrformet.2025.110467
meteorology:
Man betrachtet das flüssige Wasser, das sich bei Niederschlag (Regen, Schnee, Hagel, Nebel usw.) in einer definierten Zeitspanne in einem nur nach oben offenen Gefäß mit definierter horizontaler Öffnung sammelt. Als Niederschlagsmenge bezeichnet man das Volumen der Flüssigkeit bezogen auf die Fläche der Öffnung und gibt sie an in Liter pro Quadratmeter bzw. Millimeter (1L/m² = 1mm).
Rel. humidity of air in percent.
phytology:
Sap flow (Saftfluss) is typically measured in volume per time, and sap flow velocity (Saftflussgeschwindigkeit) is typically measured as a velocity.
Typically measured by dendrometers.
season:
pedology:
| Title | Upload date | Filetype | Licence | Actions |
|---|---|---|---|---|
| Metadata_naming_alldata2022.pdf | 09. Apr. 2025 09:53 | Download | ||
| ParameterMethod_Table.pdf | 08. Apr. 2025 14:13 | Download |
| Title | created | Filetype | Actions |
|---|---|---|---|
| alldata_rewetting_hourly.csv | 08. Apr. 2025 14:34 | datatable: .csv |
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| alldata_drought_hourly.csv | 08. Apr. 2025 14:34 | datatable: .csv |
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| hydroclimate_daily_22.csv | 08. Apr. 2025 14:26 | datatable: .csv |
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