Table 1. Information table of various source materials.

Code	Seed collection site	Geographic coordinates	MAT/°C	MAP/mm	Soil type (PH)	Altitude/m
FZ	Fujian Agriculture and Forestry University	E119°25′, N26°08′	12.4	634	6.5	6.8
SH	Shanghai Botanical Garden	E121°26′, N31°10′	15.5	1,143.1	7.6	7
SZ	Shenzhen Fairy Lake Botanical Garden	E114°10′, N22°34′	22.5	1,967	6.8	85
WH	Huazhong Agricultural University	E114°33′, N30°47′	16.8	1,170	7.1	25.3