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

Table 5

Summary of IVI value of woody species in protected woodland in descending order.

Protected woodland
Scientific name	Family name	RF	RDO	RD	IVI
Acacia tortilis	Fabaceae	9.79021	85.84028	31.7161	127.346
Dichrostachys cinerea	Fabaceae	13.28671	7.31238	15.0730	35.6721
Acacia gerrardii	Fabaceae	7.692308	4.029025	10.5197	22.2410
Acacia senegal	Fabaceae	8.391608	0.453416	6.12341	14.9684
Balanites aegyptiaca	Balanitaceae	7.692308	0.774535	6.59444	15.0612
Faidherbia albida	Fabaceae	9.090909	0.288647	5.6523	15.0319
Acacia seyal	Fabaceae	6.993007	0.087556	4.08227	11.1628
Acacia amythethophylla	Fabaceae	5.594406	0.215523	4.39629	10.2062
Acacia nilotica	Fabaceae	5.594406	0.090202	3.92526	9.60987
Acacia decurrens	Fabaceae	4.195804	0.881976	3.45423	8.53201
Duranta erecta	Verbenaceae	5.594406	0.01355	2.04113	7.64909
Acacia asak	Fabaceae	3.496503	0.003656	1.88412	5.38428
Ehretia cymosa	Boraginaceae	3.496503	0.002021	1.41309	4.91161
Carissa spinarum	Apocynaceae	2.797203	0.000625	0.94206	3.73989
Acacia oerfota	Fabaceae	2.797203	0.000337	0.94206	3.73960
Capparis cartilaginea	Capparidaceae	2.797203	0.001243	0.78505	3.58349
Rhus vulgaris	Anacardiaceae	0.699301	0.000962	0.62804	1.32830
Total		100	100	100	300

RF = relative frequency; RDO = relative dominance; RD = relative density; IVI = important value index.