Changes of Species Richness in Heathland Communities over 15 Years following Disturbances

Table 4

Pearson’s correlation analysis of time (years) with annual herbaceous species number (A), perennial herbaceous species number (P), woody species number (W), 𝑆_𝛼, 𝑆_𝛾, 𝑆_𝛽, and cover of dominant species (Dom.) before treatments in each zone, considering all the study plots (𝑁=125 and the three experimental treatments. Marked (*) correlations are significant at 𝑃<0.05).

	Years	A	P	W	𝑆𝛼	𝑆𝛾	𝑆𝛽
A	−0.43*
P	−0.15	0.53*
W	0.16	0.05	−0.45*
𝑆𝛼	−0.33*	0.81*	0.68*	0.07
𝑆𝛾	−0.27*	0.89*	0.75*	0.11	0.89*
𝑆𝛽	0.13	0.23*	0.26*	0.05	−0.13	0.31*
Dom.	0.48*	0.17	0.17	−0.04	0.19*	0.19*	0.04