Abstract:
Woody species of Parkland agroforestry are prominent features in many crop landscapes in 
Ethiopia. Parkland agroforestry which is a system practiced for many local populations is very 
important for house hold food security and widely acknowledged. Therefore, in the eastern part 
a little information compiled in the eastern part generally and specifically in the study district 
don’t any information available concerning woody species diversity of parkland agroforestry
and its role in improving Smallholdr household food security. This study objectives, was
conducted to assess woody species diversity of parkland Agroforestry and its, role in improving 
smallholder household food security in Melka, Bello District, East, Hararghe, Zone which was 
purposely selected based on presence of parkland agroforestry. A total of 116 respondents were 
selected in a systematic sample way from total households of 5303 in the study area based on 
Kothari formula used. woody species data was collected though established 100*50m plot size 
in each 116 sampled household’s total 58ha of land of species DBH>5cm and height >1.3m was 
counted and recorded. The survey data was collected through household interviews in the study 
area. The data was analyzed by using SPSS version 26 at 5% significance level. Woody species
density, basal area and diameter class distribution were computed to characterize structure of 
woody communities. The study indicated that the woody species diversity indices were higher at 
lowland (Ifa bas and Mekenisa kebeles) than midland agro-ecology (Daga belo and Dire kufa 
kebeles).The result of this study showed that significance difference (p<0.05) in the mean value 
of Shannon and Simpson diversity index among the lowland and midland parkland agroforestry 
in the study area. The survey results indicated that 46% of the respondents were food secure, 
while 54 % were food insecure