Table 2.

Matrix of Pearson correlation coefficients of Y₁~Y₅, Z (Pascopyrum smithii Schreb.) for each year.

	year	Y1	Y2	Y3	Y4	Y5	Z
Y1	2003	1.0000	0.435**	−0.297**	−0.469**	−0.434**	0.534**
	2004	1.0000	0.127**	−0.171**	−0.108**	−0.327**	0.452**
	2005	1.0000	0.558**	−0.638**	−0.391**	−0.637**	0.657**
Y2	2003		1.0000	−0.176	−0.280**	−0.341**	0.302**
	2004		1.0000	−0.045**	−0.047**	−0.099**	0.122**
	2005		1.0000	−0.453**	−0.294**	−0.422**	0.377**
Y3	2003			1.0000	0.787**	0.113	0.010
	2004			1.0000	0.071**	0.127**	−0.089**
	2005			1.0000	0.582**	0.514**	−0.332**
Y4	2003				1.0000	0.234*	−0.250*
	2004				1.0000	0.053**	−0.047**
	2005				1.0000	0.322**	−0.142
Y5	2003					1.0000	−0.219*
	2004					1.0000	−0.209**
	2005					1.0000	−0.354**

*Significant at the 0.05 probability level.

**Significant at the 0.01 probability level.

N = 105, 129 and 146 for year 2003 to 2005, respectively.