Long-term linear trends mask phenological shifts
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Climate warming has substantially advanced the timing of leaf unfolding, while the temperature sensitivity of leaf unfolding (ST) was significantly reduced over the past three decades according to our recent study (Fu et al. 2015). We are very happy to see that the article from Wang et al. (2016) confirmed these findings using a 15-year window, despite using only 927 species-site combinations, which are about one sixth of the species sites (5472) used in our study. However, we cannot agree with the highlighted conclusion that the significant decrease in ST using the 15-year window is not sustained when examining longer-term phenological responses to climate warming. On the contrary, we argue that the long-term linear trends may mask short-term phenological shifts.
KeywordsClimate Warming Temperature Sensitivity Spring Leaf Phenological Data Leaf Phenology
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