Woody Species Diversity and Structure of Protected Woodlands Adjacent to Free Grazing Land Woodland at Dugda Woreda, Oromia, Ethiopia

Table 2

Mean diversity indices and richness of woody species in protected and free grazed woodland.

Types of woodland	Shannon	Evenness	Simpson	Species richness
Free grazed woodland	1.69 ± 0.77^b	0.74^a ± 0.25	0.86^a ± 0.25	7.28^a ± 3.23
Protected woodland	2.26 ± 0.67^a	0.51^b ± 0.21	0.82^a ± 0.21	8.63^b ± 4.23
Grand mean	1.97 ± 0.72	0.62 ± 0.23	0.73 ± 0.23	7.96 ± 5.52

Different superscript small letters indicate there is significant variation between the two woodland categories (F test,  < 0.05) with Shannon, evenness, and richness of woodland.