Table 3. Pearson's correlation coefficients between phytochemicals and geographic and climatic factors.

Traits	Longitude	Latitude	Altitude	Annual average precipitation	Annual sunlight	Annual averagetemperature
Water-soluble polysaccharide	−0.432**	−0.098	0.207	−0.190	−0.324**	−0.030
Total flavonoid	−0.013	−0.108	−0.005	−0.049	−0.084	−0.161
Total polyphenol	−0.169	0.016	0.045	−0.153	−0.154	−0.187
3-O-caffeoyluinic acid	−0.420**	−0.008	0.340*	−0.282	−0.250	−0.279
4-O-caffeoyluinic acid	0.108	0.211	−0.093	0.052	−0.036	−0.318*
Quercetin-3-O-glucuronide	0.019	0.052	0.052	0.126	−0.042	−0.338*
Quercetin-3-O-galactoside	−0.064	−0.081	0.155	0.030	−0.057	−0.120
Isoquercitrin	−0.396**	0.152	0.205	−0.360*	−0.251	0.215
Kaempferol-3-O-glucuronide	−0.146	0.016	0.096	−0.029	−0.133	−0.196
Kaempferol-3-O-glucoside	−0.283	0.112	0.186	−0.413**	−0.036	0.355**
Quercetin-3-O-rhamnoside	−0.139	0.006	0.202	−0.090	0.035	0.083
Kaempferol-3-O-rhamnoside	−0.284	−0.064	0.276	−0.087	−0.048	−0.046
IC50 of DPPH	−0.014	−0.206	−0.023	0.011	−0.162	0.312*
IC50 of ABTS	−0.199	0.161	0.308*	−0.229	−0.211	0.074
EC50 of reducing power	0.020	−0.041	−0.158	0.046	−0.045	0.428**

Note:

* and ** indicate significant effects at p < 0.05 and p < 0.01, respectively.