Change in the Green-Up Dates for Quercus mongolica in Northeast China and Its Climate-Driven Mechanism from 1962 to 2012
Fig 4
The temporal mean green-up dates (DOY) for Q. mongolica in Northeast China during 1962–2012.
(A) The spatial distribution of mean green-up dates over 33 weather stations; (B) the frequency distribution of green-up dates; and (C) the relationship between the green-up date and latitude. Note: the numbers in (A) indicate the green-up dates (DOY) at each weather station.