Fig. 2
From: Heat and drought impact on carbon exchange in an age-sequence of temperate pine forests
Cumulative annual net ecosystem productivity (NEP) at the a 80-year-old, b 45-year-old, and c 17-year-old forests. Dry years are shown as yellow (2007, 2017), hot year as burgundy (2018), and concurrent hot and dry years as red (2005, 2010, 2012 and 2016) shades of coloured lines