Missouri stand:
The ~85-year-old MO stand (MO 85yo) (38° 44’ 38.76”, -92° 12’ 0”) was located in the University of Missouri’s Baskett Wildlife Research and Education Area. It is a comparitively xeric secondary oak-hickory forest, where mean annual temperature is 12.11 ⁰C and mean annual precipitation is 986 mm. While this site received similar annual precipitation to IN and NC_E, high precipitation variability and comparatively shallow silt loam soils imposed frequent and severe physiological drought (Gu et al. , 2015; Gu et al. , 2016). Dominant species were A. saccharum, Q. alba ,Quercus velutina Lam., Carya ovata (Mill.) K. Koch, andJuniperus virginiana L. Mean canopy height was 18.5 m.