Table 2.

The adjusted parameters for the leaf onset models at each site in Table 1

Site	GDDC (°C-day)	a (°C-day)
Teshio (TSE)	215 ± 59	–20 ± 71
Takayama (TKY)	372 ± 77	117 ± 79
Fujihokuroku (FHK)	429 ± 82	86 ± 87
Daisen (DSN)	405 ± 53	124 ± 64

GDD_C was obtained using equation (1) for the SW model and a was obtained using equation (3) for the PC model. Both values were adjusted at each ground site. Values are the mean ± the standard deviation derived by leave-one-out approach.