Water isotope signatures in Swiss forest ecosystems in 2021 and 2022

The isotope composition of different forest water pools was analyzed at 10 sites of the Long-term Forest Ecosystem Research programme in 2021 and 2022. The sampling was done during the vegetation season and included fortnightly xylem water samples taken by stem increment cores and each year 3 bulk soil water sampling campaigns (in April, June, September of 2021 and 2022). Both sample types were cryogenically extracted at WSL and analyzed on a Picarro 2140 with Micro-Combustion-Module. Gravimetric water content in both sample types was computed based on pre-and post-extraction weights. In addition to xylem and bulk soil waters, we analyzed the isotope composition of soil solution from a suction cup lysimeters in three soil depths 0, 15, 50, 80 cm and precipitation from samplers below the canopy and outside of the forest, all collected fortnightly from collection periods of varying length (longest from 2017-2022). Precipitation samples are further described here. Lysimeter samples are described further here.

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Identifier c6b075d0-ad47-404b-91a0-ca66b7ce433b@envidat
Titel für die URL des Datasets water-isotope-signatures-in-swiss-forest-ecosystems-in-2021-and-2022
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Erstellungsdatum 3. Januar 2024
Änderungsdatum 4. März 2025
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URL https://www.envidat.ch/#/metadata/water-isotope-signatures-in-swiss-forest-ecosystems-in-2021-and-2022
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