Claim · model-written summary
Physiological coupling strengthened the GPP-SIF relationship under drought.
- Taxon
- cork oak
Quercus subere0 - Outcome
- GPP-SIF relationshipe1
- Direction
- strengthenede1
- Qualifier
- Physiological couplinge1
- Setting
- Chinese cork oak plantatione0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chinese cork oak plantation”
e1“Physiological coupling strengthened the GPP-SIF relationship under drought”
Title
Qingmei Pan; Chunxia He; Shoujia Sun; et al. Remote Sensing 2025. doi:10.3390/rs17122017
Other claims from this paper (9)
- Intervention effect Drought reduced both SIF and GPP in the cork oak plantation.
- Intervention effect GPP was more sensitive to drought stress than SIF in the cork oak plantation.
- Association The diurnal non-linear GPP-SIF relationship (R2) decreased as drought stress increased.
- Observation Under severe drought stress (PWSIbin 0.8-0.9) a significant non-linear GPP-SIF760 correlation remained (R2 = 0.30).
- Observation Under severe drought stress (PWSIbin 0.8-0.9) a significant non-linear GPP-SIF687 correlation remained (R2 = 0.23).
- Mechanism Canopy structure effects on the GPP-SIF relationship under drought were negligible.
- Mechanism Random forest and path analyses identified VPD as the key factor reducing the GPP-SIF correlation during drought.
- Method / resource Incorporating VPD into the GPP-SIF relationship improved GPP estimation accuracy by over 48% under severe drought stress.
- Method / resource Red SIF allowed more accurate GPP estimation than far-red SIF under drought conditions.