Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan

This study was conducted at Sungai Lalang Forest Reserve, Selangor to determine the community structure, diversity and distribution of tree communities in relation to edaphic factors. The study area comprised of 20 x 25 m 14 subplots in 0.7 hectares plot. All trees with diameter at breast height (DB...

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Main Author:	Hamdan, Natasha
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Dynamic and structural geology Bioactive compounds
Online Access:	https://ir.uitm.edu.my/id/eprint/59077/1/59077.pdf
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spelling	my-uitm-ir.590772022-04-29T02:22:52Z Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan 2020-11 Hamdan, Natasha Dynamic and structural geology Bioactive compounds This study was conducted at Sungai Lalang Forest Reserve, Selangor to determine the community structure, diversity and distribution of tree communities in relation to edaphic factors. The study area comprised of 20 x 25 m 14 subplots in 0.7 hectares plot. All trees with diameter at breast height (DBH) of 5 cm and above were measured, identified and recorded. Soil samples were collected and analysed to determine their chemical and physical properties. A total of 562 trees were enumerated where 82 species, 67 genera and 34 families were recorded. The Dipterocarpaceae was the most speciose family with 12 species and Syzygium myrtifolium (Myrtaceae) was the most distributed in all plots. Dipterocarpaceae recorded the highest density with 96 ind/ha while Syzygium myrtifolium (Myrtaceae) had the highest species density with 87 ind/ha. The total tree basal area (BA) was 32.05 m2/ha and the family with the highest BA was Dipterocarpaceae with 13.29 m2/ha while at the species level, Shorea leprosula (Dipterocarpaceae) recorded the highest BA of 4.29 m2/ha. The Shannon˗Weiner Diversity Index (H’) of tree communities showed a value of 3.64 (H’max = 4.41) while the Evenness Index was 0.83 which indicates that the frequencies between tree species are similar. Dipterocarpaceae is the most dominant family with the highest Importance Value of 19.60%. The soil analysis showed that sandy clay dominated the soil texture at all plots whilst the percentage of organic matter content ranged from 5.60% to 14.67% with a mean pH value of 4.17±0.11. Total cation exchange capacity (CEC) recorded a value of 2.05 ± 0.31 meq/100g while the value of nutrient availability for N, Mg, K and P are 0.12 ± 0.02 μg/g, 28.79 ± 1.24 μg/g, 267.46 ± 20.28 μg/g and 2.23 ± 0.27 μg/g, respectively. The Redundancy Analysis (RDA) showed that Scaphium linearicarpum (Malvaceae) was strongly correlated to nitrogen (N) while Shorea parvifolia (Dipterocarpaceae) had positive association with phosphorus (P). Overall, the distribution pattern of tree communities at the study site was associated with soil characteristics and further forest management is needed to conserve the endemic and threatened tree species. 2020-11 Thesis https://ir.uitm.edu.my/id/eprint/59077/ https://ir.uitm.edu.my/id/eprint/59077/1/59077.pdf text en public masters Universiti Teknologi MARA Faculty of Applied Sciences Pardi, Faezah (Dr) Mustafa Bakray, Nur ‘Aqilah (Dr)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Pardi, Faezah (Dr) Mustafa Bakray, Nur ‘Aqilah (Dr)
topic	Dynamic and structural geology Bioactive compounds
spellingShingle	Dynamic and structural geology Bioactive compounds Hamdan, Natasha Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan
description	This study was conducted at Sungai Lalang Forest Reserve, Selangor to determine the community structure, diversity and distribution of tree communities in relation to edaphic factors. The study area comprised of 20 x 25 m 14 subplots in 0.7 hectares plot. All trees with diameter at breast height (DBH) of 5 cm and above were measured, identified and recorded. Soil samples were collected and analysed to determine their chemical and physical properties. A total of 562 trees were enumerated where 82 species, 67 genera and 34 families were recorded. The Dipterocarpaceae was the most speciose family with 12 species and Syzygium myrtifolium (Myrtaceae) was the most distributed in all plots. Dipterocarpaceae recorded the highest density with 96 ind/ha while Syzygium myrtifolium (Myrtaceae) had the highest species density with 87 ind/ha. The total tree basal area (BA) was 32.05 m2/ha and the family with the highest BA was Dipterocarpaceae with 13.29 m2/ha while at the species level, Shorea leprosula (Dipterocarpaceae) recorded the highest BA of 4.29 m2/ha. The Shannon˗Weiner Diversity Index (H’) of tree communities showed a value of 3.64 (H’max = 4.41) while the Evenness Index was 0.83 which indicates that the frequencies between tree species are similar. Dipterocarpaceae is the most dominant family with the highest Importance Value of 19.60%. The soil analysis showed that sandy clay dominated the soil texture at all plots whilst the percentage of organic matter content ranged from 5.60% to 14.67% with a mean pH value of 4.17±0.11. Total cation exchange capacity (CEC) recorded a value of 2.05 ± 0.31 meq/100g while the value of nutrient availability for N, Mg, K and P are 0.12 ± 0.02 μg/g, 28.79 ± 1.24 μg/g, 267.46 ± 20.28 μg/g and 2.23 ± 0.27 μg/g, respectively. The Redundancy Analysis (RDA) showed that Scaphium linearicarpum (Malvaceae) was strongly correlated to nitrogen (N) while Shorea parvifolia (Dipterocarpaceae) had positive association with phosphorus (P). Overall, the distribution pattern of tree communities at the study site was associated with soil characteristics and further forest management is needed to conserve the endemic and threatened tree species.
format	Thesis
qualification_level	Master's degree
author	Hamdan, Natasha
author_facet	Hamdan, Natasha
author_sort	Hamdan, Natasha
title	Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan
title_short	Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan
title_full	Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan
title_fullStr	Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan
title_full_unstemmed	Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan
title_sort	community structure, endemism and edaphic relationship of tree communities at sungai lalang forest reserve, selangor, malaysia / natasha hamdan
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Applied Sciences
publishDate	2020
url	https://ir.uitm.edu.my/id/eprint/59077/1/59077.pdf
_version_	1783735014122323968

Community structure, endemism and edaphic relationship of tree communities at Sungai Lalang Forest Reserve, Selangor, Malaysia / Natasha Hamdan

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