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中国草地和欧洲木本植物返青期对气温和降水变化的响应: 基于生存分析的研究
周彤1,曹入尹2,王少鹏1,陈晋3,唐艳鸿1,*()
Responses of green-up dates of grasslands in China and woody plants in Europe to air temperature and precipitation: Empirical evidences based on survival analysis
ZHOU Tong1,CAO Ru-Yin2,WANG Shao-Peng1,CHEN Jin3,TANG Yan-Hong1,*()

图3. 内蒙古草原、青藏高原草甸和欧洲地区木本植物的Holdridge干燥度指数(HAI)的分布统计特征。统计变量的说明参见图2。

Fig. 3. Boxplots of the Holdridge aridity index (HAI) for the grasslands of Nei Mongol, meadows in Qinghai-Xizang Plateau, and woody plants in Europe. See Fig. 2 for explanations of the symbols.