Description of time series.

*Estonian Meterological and Hydrological Institute.
**p<0.01.
Description of the variables used in the current study. 1–7: hydroclimate, 8–13: phenology, 14–19: biota. Numbers before every particular category mean their aggregation for PCA analyses. For more detailed description of variables please see the material and methods.

爱沙尼亚气象与水文研究所（Estonian Meteorological and Hydrological Institute）
*p*<0.01
本研究所用变量说明如下：1~7为水文气候（hydroclimate）变量，8~13为物候（phenology）变量，14~19为生物群落（biota）变量。各分类前的数字代表其用于主成分分析（PCA, Principal Component Analysis）的聚合组别。如需了解变量的详细描述，请参阅材料与方法部分。