Divergent Response of Leaf Coloring Seasons to Temperature Change in Northern China over the Past 50 Years

Figure 2

The numbers of phenological records at the six sites for each phenophase (leaf coloring date and full-leaf coloring date) during 1963–2010. The numbers at the end of the curves represent the total numbers of records for each phenophase. The numbers in the brackets are the number of species. The grey areas indicate the year lacking of observations.