Fig. 3From: Change and relationship between growing season metrics and net primary productivity in forestland and grassland in ChinaSpatial trends of SOS (a), EOS (b) and LOS (c) in forestland and grassland in China during 1981–2016 (the gray areas in d1–d3 respectively indicate that the trends of SOS, EOS and LOS pass the significance test at the 0.05 level)Back to article page