Seasonal and inter-annual variation in the chlorophyll content of three co-existing Sphagnum species exceeds the effect of solar UV reduction in a subarctic peatland

SpringerPlus

Table 4 Correlations (Pearson correlation coefficients) between the total chlorophyll concentration (Chl) of the three studied species and temperature and UVB on the three different dates the UVB was measured and samples collected

Date	Chl in S. balticum		Chl in S. jensenii		Chl in S. lindbergii
Date	Temperature	UVB	Temperature	UVB	Temperature	UVB
3.7.2008	.238	−.169	.193	.148	.282	.431*
24.7.2008	.076	−.240	−.349	.351	.220	−.129
28.8.2008	−.214	.352	−.055	.092	.005	−.036

The temperature is the daily mean of the preceding date. Statistically significant (p < 0.05) correlation coefficients marked with asterisk