Alongi, Franklin: High-resolution branch and root gas exchange and stem growth of Fagus sylvatica juveniles during experimental low CO₂ exposure and recovery [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993034 (dataset in review)
Abstract:
This dataset documents continuous physiological measurements of European beech (Fagus sylvatica) juveniles exposed to experimental low atmospheric CO₂ and subsequent recovery. Measurements were conducted in a controlled climate chamber experiment at the Karlsruhe Institute of Technology (KIT), Germany, between June 11 and June 28, 2025. The experiment consisted of two phases: a low CO₂ treatment phase (~58 ppm; June 11–22) designed to induce carbon starvation, followed by a recovery phase under ambient CO₂ conditions (June 22–28). Continuous measurements of branch and root CO₂ and H₂O fluxes were obtained at 40-minute intervals using an automated LI-COR gas exchange system. Concurrent stem diameter changes were recorded using electronic dendrometers to quantify short-term growth dynamics. Environmental variables, including soil and air temperature, were monitored throughout the experiment. Gas exchange data were baseline-corrected to account for chamber leakage and sensor drift. The dataset comprises 18,834 observations spanning all treatment phases and individuals. These data enable detailed analyses of whole-plant carbon fluxes, growth responses, and physiological recovery dynamics under experimentally induced carbon limitation. This integrated dataset enables investigation of carbon allocation trade-offs between immediate physiological responses, storage refilling, and growth during drought recovery from carbon starvation.
Keyword(s):
Coverage:
Date/Time Start: 2025-06-11T00:00:10 * Date/Time End: 2025-06-27T23:59:20
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Experiment | Exp | Alongi, Franklin | |||
| 2 | Type of study | Study type | Alongi, Franklin | |||
| 3 | Species | Species | Alongi, Franklin | |||
| 4 | Species, unique identification (URI) | Species UID (URI) | Alongi, Franklin | |||
| 5 | Species, unique identification (Semantic URI) | Species UID (Semantic URI) | Alongi, Franklin | |||
| 6 | Sample ID | Sample ID | Alongi, Franklin | |||
| 7 | DATE/TIME | Date/Time | Alongi, Franklin | Geocode | ||
| 8 | Treatment | Treat | Alongi, Franklin | |||
| 9 | Compartment | Compartment | Alongi, Franklin | |||
| 10 | Diameter | Ø | mm | Alongi, Franklin | ||
| 11 | Temperature, soil | T soil | °C | Alongi, Franklin | ||
| 12 | Temperature, air | TTT | °C | Alongi, Franklin | ||
| 13 | Flow rate, molar | Flow rate molar | mol/s | Alongi, Franklin | ||
| 14 | Carbon dioxide | CO2 | ppmv | Alongi, Franklin | ||
| 15 | Carbon dioxide, flux | CO2 flux | µmol/m2/s | Alongi, Franklin | ||
| 16 | Water vapour, flux | H2O flux | mmol/m2/s | Alongi, Franklin |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
260365 data points
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