Komposisi dan Struktur Dirian Pokok di Hutan Simpan Paya Pasir, Pahang

Composition and Stand Structure of Trees in Paya Pasir Forest Reserve, Pahang

Abstract

Satu kajian berkaitan struktur komuniti dan dirian pokok telah dijalankan di Hutan Simpan Paya Pasir, Temerloh, Pahang. Hutan ini merupakan hutan dipterokarpa tanah rendah yang telah dibalak dan merupakan hutan terkecil di daerah Temerloh. Dua buah plot, setiap satu berukuran 20 m x 20 m telah dibina secara rawak. Keluasan plot kajian adalah 0.08 hektar. Semua pokok berdiameter pada paras dada (DBH) 5.0 cm dan ke atas telah ditanda dan diukur. Sampel dikutip, diawet dan dicamkan sehingga peringkat spesies. Sebanyak 96 individu daripada 38 spesies, 30 genus dan 22 famili telah dibanci. Guttiferae adalah famili terbesar yang diwakili oleh lima spesies. Syzygium (Myrtaceae) pula adalah genus terbesar diwakili oleh empat spesies. Kelas DBH pokok dibahagikan kepada empat kumpulan. Pokok terbesar adalah Dialium platysepalum (Leguminosae) dengan diameter 50.0 cm DBH. Dipterocarpaceae hanya diwakili oleh satu genus, satu spesies dan dua individu. Kajian ini menunjukkan Hutan Simpan Paya Pasir mengalami kekurangan spesies pokok bernilai komersil. Namun kajian lanjut dengan saiz plot yang lebih luas diperlukan untuk mengesahkan pandangan ini.

A study on the community structure and tree stands was conducted in Paya Pasir Forest Reserve, Temerloh, Pahang. This forest is a logged lowland dipterocarp forest and the smallest forest in the Temerloh district. Two plots, each measuring 20 m x 20 m, were randomly established. The total plot area was 0.08 hectares. All trees with a diameter at breast height (DBH) of 5.0 cm and above were tagged and measured. Samples were collected, preserved, and identified to the species level. A total of 96 individuals from 38 species, 30 genera, and 22 families were recorded. Guttiferae was the largest family, represented by five species. Syzygium (Myrtaceae) was the largest genus, represented by four species. The DBH classes were divided into four groups. The largest tree was Dialium platysepalum (Leguminosae) with a DBH of 50.0 cm. Dipterocarpaceae was represented by only one genus, one species, and two individuals. This study indicates that Paya Pasir Forest Reserve lacks commercially valuable tree species. However, further research with larger plot sizes is needed to confirm this observation.