Struktur Komuniti Pokok di Hutan yang telah dibalak, Hutan Simpan Kemasul, Temerloh

Pahang Tree Community Structure in a Logged Forest, Kemasul Forest Reserve, Temerloh, Pahang

Abstract

Kajian berkaitan struktur komuniti pokok telah dijalankan di Hutan Simpan Kemasul, Temerloh, Pahang. Hutan ini merupakan hutan dipterokarpa tanah rendah yang telah dibalak dan dikelilingi oleh ladang kelapa sawit di sekitarnya. Dua buah plot, setiap satu berukuran 25 m x 20 m telah dibina secara rawak. Keluasan plot kajian adalah 0.1 hektar. Semua pokok berdiameter pada paras dada (DBH) 10.0 cm dan ke atas telah ditanda dan diukur. Sebanyak 77 dirian daripada 47 spesies, 36 genus dan 19 famili telah dibanci. Euphorbiaceae s.l. adalah famili terbesar yag diwakili oleh lapan spesies. Mallotus dan Syzygium pula adalah genus terbesar, masing-masing diwakili oleh tiga spesies. Dua spesies dipterokarpa iaitu Shorea mawelliana (Dipterocarpaceae) dengan diameter 57.7 cm dan Dipterocarpus grandiflorus (Dipterocarpaceae) dengan diameter 52.0 cm merupakan antara tiga pokok terbesar dalam plot kajian. Tiada dirian melebihi 70 cm DBH yang telah dibanci. Kajian ini memberikan maklumat awal berkaitan bilangan komposisi spesies dan struktur dirian pokok di hutan dipterokarpa tanah rendah yang telah dibalak di negeri Pahang.

A study on the structure of tree communities was conducted in the Kemasul Forest Reserve, Temerloh, Pahang. This forest is a logged lowland dipterocarp forest surrounded by oil palm plantations. Two plots, each measuring 25 m × 20 m, were randomly established. The total study area was 0.1 hectare. All trees with a diameter at breast height (DBH) of 10.0 cm and above were tagged and measured. A total of 77 individuals from 47 species, 36 genera, and 19 families were recorded. Euphorbiaceae s.l. was the largest family, represented by eight species. Mallotus and Syzygium were the largest genera, each represented by three species. Two dipterocarp species, Shorea maxwelliana (Dipterocarpaceae) with a diameter of 57.7 cm and Dipterocarpus grandiflorus (Dipterocarpaceae) with a diameter of 52.0 cm, were among the three largest trees in the study plots. No individuals exceeding 70 cm DBH were recorded. This study provides preliminary information on the species composition and tree stand structure in logged lowland dipterocarp forests in the state of Pahang.