Komposisi Jenis dan Struktur Hutan di Taman Hutan Raya Dr. Moh. Hatta, Padang, Sumatera Barat

Abstract

According to Law of Republic of Indonesia No. 5 of 1990, the Forest Park is a nature conservation area which collects natural and unnatural plants and animals. The composition and structure of stands can be used to estimate the density of trees in various diameter classes. This study aims to determine the composition and structure of the vegetation contained in the block protection, utilization, and collection. The research was conducted from January to February 2021 at Bung Hatta Forest Park Conservation Area Padang, West Sumatera. The research result show that dominant type found in the protection block for the tree’s level was Glochidion obscurum. In the utilization block, the dominant type called Pinus merkusii, then in the collection block dominated by Swietenia macrophylla. The diversity index value (H') on the three blocks is classified as the moderate with H' value between 1-2. Meanwhile, the wealth index is classified as the low with a value of R1 <3.5. The result also found that the pattern of species distribution is clumped. The stratification of Bung Hatta Forest Park Conservation Area’s crown is in the B and C stratum.

Keywords: diversity index (H'), dominant type, composition, richness index (R1), vegetation structure