Extended Data Fig. 4: Dependencies of Causal Shapley values under water-limited conditions.
From: When and where soil dryness matters to ecosystem photosynthesis
a-p, Relationships between Causal Shapley values and SW, TA, VPD, and SM for eddy covariance measurements across biomes of forests (a-d), savannahs and shrublands (e-h), and grasslands (i-l), as well as TROPOMI SIF observations over global arid and semi-arid regions (m-p). Data from two sandy forests are indicated by a dashed box in (d). Causal Shapley values are presented in consistent units with the eddy covariance half-hourly GPP data (µmol m−2 s−1, a-l) and TROPOMI SIF (mW m−2 sr−1 nm−1, m-p). SW: incoming shortwave radiation; TA: air temperature; VPD: vapour pressure deficit; VWC: volumetric water content.
