Sains Malaysiana 44(4)(2015): 491–496

A Phytosociological Study on the Community of Palaquium gutta (Hook.f.) Baill. (Sapotaceae) at Ayer Hitam Forest Reserve, Selangor, Malaysia

(Suatu Kajian Fitososiologi ke atas Komuniti Palaquium gutta (Hook.f.) Baill di Hutan Simpan Ayer Hitam, Selangor)

A.R. SARAH¹*, H. NURADNILAILA², N.W. HARON¹ & M. AZANI²

¹Institute of Biological Sciences, Faculty of Science, University of Malaya

50603 Kuala Lumpur, Malaysia

²Faculty of Forestry, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan

Malaysia

Diserahkan: 9 Julai 2014/Diterima: 15 November 2014

ABSTRACT

A phytosociological study on the flora and vegetation community of Palaquium gutta (Hook.f.) Baill. was carried out in Compartment 13 of Ayer Hitam Forest Reserve, Selangor. The main objectives of this study were to identify, characterize and classify the P. gutta community which is naturally distributed in Ayer Hitam Forest Reserve. A total of 10 plots (30×30 m in size) were constructed according to the line transect method. The vegetation sampling and data analysis were done according to the Braun-Blanquet approach. The results showed that there were 59 species belonging to 54 genera and 34 families in the form of herbs, shrubs, understorey trees and also canopy tree layers. The most common species in the study area were P. gutta and Endospermum diadenum (Miq.) Airy Shaw. The phytosociological study identified a community of Palaquium gutta-Endospermum. diadenum along with two sub-communities known as Dracaena sp. sub-community and Streblus elongatus sub-community. The results also showed that most of the species belong to the Euphorbiaceae. This indicates that the forest is a secondary forest.

Keywords: Braun-Blanquet; Endospermum diadenum; Palaquium gutta; phytosociology; vegetation community

ABSTRAK

Suatu kajian fitososiologi ke atas flora dan komuniti vegetasi Palaquium gutta (Hook.f.) Baill. telah dijalankan di petak 13 Hutan Simpan Ayer Hitam, Selangor. Objektif utama kajian ini ialah untuk mengenal pasti, menciri dan mengelaskan komuniti P. gutta yang tersebar secara semula jadi di Hutan Simpan Ayer Hitam. Sejumlah 10 plot (30×30 m) telah dibina mengikut kaedah transek garisan. Pensampelan vegetasi dan analisis data telah dilakukan mengikut pendekatan Braun-Blanquet. Keputusan menunjukkan terdapat 59 spesies dan 54 genus serta 34 famili herba, pokok renek, pokok lapisan bawah dan juga lapisan pokok kanopi. Spesies paling kerap dijumpai di kawasan kajian ialah P. gutta dan Endospermum diadenum (Miq.) Airy Shaw. Kajian fitososiologi telah mengenal pasti satu komuniti iaitu Palaquium gutta-Endospermum diadenum ass. nova diikuti dengan dua subkomuniti dikenali sebagai subkomuniti Dracaena sp. dan subkomuniti Streblus elongatus. Keputusan juga menunjukkan bahawa kebanyakan spesies adalah daripada Euphorbiaceae. Ini menunjukkan bahawa hutan tersebut adalah hutan sekunder.

Kata kunci: Braun-Blanquet; Endospermum diadenum; fitososiologi; komuniti vegetasi; Palaquium gutta

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*Pengarang untuk surat-menyurat; email: sarahrazak@um.edu.my