Table 15. Changes in the biodiversity index in the Salix pseudolasiogyne community of the World Cup Park slope district

Community name	Survey year	Species number	H’(Shannon)	J’(evenness)	D(dominance)	H’max
Salix pseudolasiogyne community	1999	11	0.6262	0.6013	0.3987	1.0414
	2003	12	0.7450	0.6903	0.3097	1.0792
	2005	11	0.8085	0.7763	0.2237	1.0414
	2008	9	0.7092	0.7432	0.2568	0.9542
	2012	3.6	0.4205	0.8161	0.1839	0.5258
	2016	11	0.8295	0.7965	0.2035	1.0414
	2021	10	0.8205	0.8205	0.1795	1.0000