VPD and SWC are highly correlated at longer timescale, so to decouple their contributions, the data are analyzed at a daily timescale. Based on the current results, we find that dry air (high VPD) is found to have a higher impact on stomatal conductance (Gs) variability compared to drysoil (low SWC), which supports our hypothesis. Further study is ongoing to understand the specific underlying processes.
- PIs: Kaiyu Guan, Hyungsuk Kim
- PI Institution: University of Illinois
- Link: https://doi.org/10.1016/j.agrformet.2020.107930
- June 18, 2018 – September 17, 2019