Table 1. The respective significances for each geo-environmental variable examined in the canonical correspondence analysis (CCA) in relation to ploidy distribution of Actinidia chinensis .

Variable	Abbreviation	CCA1	CCA2	r 2	P-value
Longitude	LON	0.9979	0.0652	0.3701	0.005*
Latitude	LAT	-0.9802	-0.1982	0.4543	0.004*
Altitude	ALT	-0.9971	-0.0760	0.5438	0.001**
Aspect	ASP	0.7736	-0.6337	0.0229	0.719
Slope steepness	SLO	0.4575	0.8892	0.0543	0.431
Soil type	SOI	0.9368	-0.3498	0.0057	0.873
Mesotopography	MES	-0.1144	-0.9934	0.1178	0.155
Niche disturbance	DIS	0.9986	0.0525	0.4047	0.001**
Vegetation cover	COV	0.9994	0.0340	0.3254	0.002*

Significant codes: 0.001, **; 0.01, *. P values based on 999 permutations