Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak

The aim of this research was to study the distribution and composition pattern of weed species at selected rivers in Temengor Lake, Perak. This study was conducted from 23rd November 2011 to 5th October 2012 by using line transect and quadrat methods. There were 20 sampling sites which were classifi...

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Main Author:	Razak, Nadia Ab.
Format:	Thesis
Language:	English
Published:	2013
Subjects:	QH1 Natural history (General - Including nature conservation geographical distribution)
Online Access:	http://eprints.usm.my/43849/1/Nadia%20Binti%20Ab.%20Razak24.pdf
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id	my-usm-ep.43849
record_format	uketd_dc
spelling	my-usm-ep.438492019-04-12T05:26:10Z Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak 2013-10 Razak, Nadia Ab. QH1 Natural history (General - Including nature conservation, geographical distribution) The aim of this research was to study the distribution and composition pattern of weed species at selected rivers in Temengor Lake, Perak. This study was conducted from 23rd November 2011 to 5th October 2012 by using line transect and quadrat methods. There were 20 sampling sites which were classified into two classes; disturbed (six sites) and pristine (14 sites) areas. Kruskal-Wallis H Test, indicated that there was significant differences (p<0.05) in the number of individuals for each weed species presence in the 20 sampling sites. One hundred and ninety two weed species were recorded at disturbed areas whereas 183 weed species were recorded at pristine areas. Weed cover percentages scale showed that Cyperus pilosus, Ludwigia hyssopifolia, Mikania micrantha and Mimosa pigra were the highest at disturbed areas whereas Clidermia hirta, Melastoma malabatrichum and Mikania micrantha were the highest at pristine areas. Among all weed species identified and recorded, nine species were considered as dominant species based on species presence percentages and Important Value Index (IVI). Among these nine species, Clidermia hirta (75%, 477.81) and Mikania micrantha (70%, 434.72) recorded the highest species presence percentages and IVI values in 15 and 14 sampling sites, respectively. Cluster Analysis revealed the similarities of soil factors, distribution and composition pattern of weed species and weed species presence between the sampling sites. Two main clustered were formed which then followed by isolating groups in each dendogram. Based on Pearson Correlation coefficient, there were three positive and three negative correlations between the numbers of weed species presence, total number of individuals, soil pH and soil water content in all sampling sites. Mimosa pigra infestation was highly populated at the river mouth of Enam River during low water level compared to high water level period. 2013-10 Thesis http://eprints.usm.my/43849/ http://eprints.usm.my/43849/1/Nadia%20Binti%20Ab.%20Razak24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kajihayat
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QH1 Natural history (General - Including nature conservation geographical distribution)
spellingShingle	QH1 Natural history (General - Including nature conservation geographical distribution) Razak, Nadia Ab. Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak
description	The aim of this research was to study the distribution and composition pattern of weed species at selected rivers in Temengor Lake, Perak. This study was conducted from 23rd November 2011 to 5th October 2012 by using line transect and quadrat methods. There were 20 sampling sites which were classified into two classes; disturbed (six sites) and pristine (14 sites) areas. Kruskal-Wallis H Test, indicated that there was significant differences (p<0.05) in the number of individuals for each weed species presence in the 20 sampling sites. One hundred and ninety two weed species were recorded at disturbed areas whereas 183 weed species were recorded at pristine areas. Weed cover percentages scale showed that Cyperus pilosus, Ludwigia hyssopifolia, Mikania micrantha and Mimosa pigra were the highest at disturbed areas whereas Clidermia hirta, Melastoma malabatrichum and Mikania micrantha were the highest at pristine areas. Among all weed species identified and recorded, nine species were considered as dominant species based on species presence percentages and Important Value Index (IVI). Among these nine species, Clidermia hirta (75%, 477.81) and Mikania micrantha (70%, 434.72) recorded the highest species presence percentages and IVI values in 15 and 14 sampling sites, respectively. Cluster Analysis revealed the similarities of soil factors, distribution and composition pattern of weed species and weed species presence between the sampling sites. Two main clustered were formed which then followed by isolating groups in each dendogram. Based on Pearson Correlation coefficient, there were three positive and three negative correlations between the numbers of weed species presence, total number of individuals, soil pH and soil water content in all sampling sites. Mimosa pigra infestation was highly populated at the river mouth of Enam River during low water level compared to high water level period.
format	Thesis
qualification_level	Master's degree
author	Razak, Nadia Ab.
author_facet	Razak, Nadia Ab.
author_sort	Razak, Nadia Ab.
title	Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak
title_short	Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak
title_full	Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak
title_fullStr	Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak
title_full_unstemmed	Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak
title_sort	distribution and composition of plant species with special reference to weeds in temengor lake, perak
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kajihayat
publishDate	2013
url	http://eprints.usm.my/43849/1/Nadia%20Binti%20Ab.%20Razak24.pdf
_version_	1747821290057629696

Distribution And Composition Of Plant Species With Special Reference To Weeds In Temengor Lake, Perak

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