Figure 2: Daily time course of environmental and physiological parameters.
From: The dynamics of carbon stored in xylem sapwood to drought-induced hydraulic stress in mature trees
(A) Volumetric soil water content (VSWC) in control trees. (B) Leaf water potential before dawn. (C) Midday net photosynthetic rates. (D) Daily accumulated stem respiration rates. Red circles denote Hibiscus glaber, and blue squares denote Ligustrum micranthum. Open and closed symbols denote the control and irrigated trees, respectively. For the control trees, significant rainfall occurred on 21 July (open arrow); for the irrigated trees, we supplied water to the soil on 15 and 16 July in 2014 (purple arrow).
