Table 4. Species diversity indices of of three types.

Layer	Type	H’	H’max	J’	D
Tree	TP	1.180	1.385	0.837	0.163
	SP	1.123	1.336	0.837	0.163
	A	1.144	1.395	0.807	0.193
Subtree	TP	1.853	2.089	0.873	0.127
	SP	1.605	1.729	0.928	0.072
	A	1.588	1.733	0.917	0.083
Shrub	TP	2.143	2.351	0.910	0.090
	SP	2.082	2.340	0.886	0.114
	A	1.786	2.038	0.864	0.136
Herb	TP	2.299	2.820	0.804	0.196
	SP	2.447	2.896	0.836	0.164
	A	2.027	2.526	0.785	0.215
All	TP	2.920	3.385	0.860	0.140
	SP	2.850	3.333	0.850	0.150
	A	2.630	3.121	0.840	0.160