Characteristics of Spring Phenological Changes in China over the Past 50 Years

Table 3

Comparison of trends in spring phenophases between this study and other studies based on ground phenological observations.

Regions	Objects	Periods	Trends (days/year)	Trends in this study	Source
Europe	Spring/summer events of 542 plant	1971–2000	−0.25	−0.11	[14]
Northeastern USA	The flowering time of lilac	1965–2001	−0.09	−0.12	[32]
Australia	Wine grape maturity date	1985–2009	−0.80	−0.43	[33]
China	The leaf unfolding time of 13 plant species	1982–2006	−0.41	−0.36	[34]