Table 2.

Mantel test of physical and chemical parameters and microbial communities.

Mantel test	Heilaoya		Dulihuang
	r2	P	r2	P
Reducing sugar	0.6482	0.001	0.5788	0.006
Temperature	0.4607	0.043	0.3713	0.061
Lactic acid	0.2942	0.094	0.2543	0.111
Acetic acid	0.3762	0.065	0.3234	0.074
Ethanol	0.1742	0.213	0.1255	0.341
Moisture	0.1887	0.118	0.2662	0.102
Acidity	0.3215	0.081	0.1687	0.231

r², Spearman correlation coefficient; P < 0.05 indicates a significant correlation.