Plant diversity components of agroforestry in Tanjung Botung, Village, Barumun District, Padang Lawas Regency, North Sumatra

Abstract

Agroforestry is a land-use pattern that combines crops in one land with spatial and temporal arrangements. This study aims (1) to identify the species components of agroforestry, (2) to analysis the species diversity in agroforestry, and (3) to calculate the benefits of species in agroforestry for the community around Tanjung Botung Village. Based on the results in this research, it is known that there are 33 species of plants found in agroforestry land which consists of 19 families. To determine the type that dominates the growth rate, it is seen from the value of the Important Value Index. The highest IVI level was in the shurbs level namely Elaeis guineensis (56.67), in the seedling level namely Hevea brasiliensis (83.57), in the sapling level namely Durio zibethinus (38.37), in the pole level namely Hevea brasiliensis (68.04) and in tree level namely Hevea brasiliensis (99.69). To find out the level of species diversity was calculated using the Shannon-Wiener Index (H’). From the results of the study, it was concluded that the value of species diversity ranged from 1.63 to 2.35, meaning that the value of species diversity (H’) for all growth levels was categorized as moderate.