Field measurements of soil properties and plant physiological responses to induced drought conditions at the Biosphere 2 (2026 campaign). We characterise plant responses to changing precipitation across several soil types by measuring infiltration rates (saturated hydraulic conductivity K, derived via Philip's two-term equation and Zhang 1997 / van Genuchten), soil moisture at 12 cm and 20 cm depth, hyperspectral reflectance indices, and leaf-level gas exchange parameters (Jmax, Vcmax). The goal is to resolve how specific soil physical properties constrain plant function in semi-arid ecosystems where soil water retention is hypothesised to exert a stronger influence on gross primary productivity than climate variables alone.
PI: David J.P. Moore, University of Arizona
Collaborators: Angie Abarzua Munoz; Lindsey Bell
| Data type | Last update | Row count |
|---|---|---|
| Infiltration field data | — | 0 |
| Soil moisture | 2026-06-16 | 263 |
| Hyperspectral indices | — | 0 |
| Jmax / Vcmax | — | — |
Most recent K values (saturated hydraulic conductivity) per replicate from
data/processed/B2_SoilInfiltration_Results.csv:
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