Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia

The Urban Heat Island Effect is a common topic in research literature and newspapers nowadays. The aim of this study is to identify and evaluate the conditions of isolated landscape tree towards microclimate as compared to the open space without tree, as well as the comparison of microclimate under...

Full description

Saved in:

Bibliographic Details
Main Author:	Mah, Chen Ying
Format:	Thesis
Language:	English
Published:	2014
Subjects:	Landscape architecture - Climatic factors
Online Access:	http://psasir.upm.edu.my/id/eprint/70457/1/FRSB%202014%2020%20-%20IR.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.70457
record_format	uketd_dc
spelling	my-upm-ir.704572019-10-30T04:27:41Z Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia 2014 Mah, Chen Ying The Urban Heat Island Effect is a common topic in research literature and newspapers nowadays. The aim of this study is to identify and evaluate the conditions of isolated landscape tree towards microclimate as compared to the open space without tree, as well as the comparison of microclimate under three various popular landscape trees, namely: Peltophorum pterocarpum (umbrella form), Mimusops elengi (round form), Mesua ferrea (conical form). Two sets of watch dog 2000 weather stations are used to collect the solar radiation, air temperature and relative humidity. One set is placed under the tree, another set is placed in the open space without tree. An AccurPAR LP80 is used to collect Leaf Area Index data. The study site is at University Putra Malaysia. The data analysis was conducted using R software (The R Foundation Statistical Computing) and Minitab statistical software. The research hypothesis is to study the microclimate conditions under tree species. The findings reveal that the tree species has a great reduction on solar radiation under tree canopy as compared to open space without tree. The solar radiation for Mimusops elengi (reduction 95.55%) is the lowest amongst the three species, Mesua ferrea ranked second, Peltophorum pterocarpum is third. However, the air temperature and relative humidity have no significantly different effects in ststisticsas compared to open space without tree, but the air temperature has slightly lower and relative humidity has a slight increment under tree canopy. The hypotensis testing develops the microclimate model which can be used as a tool for predicting the curve and estimating the percentage of decrement or increment of microclimate under the tree species. The trees with an umbrella form and round form are able to provide bigger shade compared to Mesua ferrea which has a conical form. The shade is able to intercept sunlight and diminish the solar radiation which affects the comfort of humans. Therfore, the size of canopy area is very important to influence urban heat island effect. The results from this study suggest that the selection of appropriate urban trees by the planners and landscape architects to ameliorate the Urban Heat Island effect in the design approach should also consider the tree species, which can provide bigger shade and higher Leaf Area Index. Landscape architecture - Climatic factors 2014 Thesis http://psasir.upm.edu.my/id/eprint/70457/ http://psasir.upm.edu.my/id/eprint/70457/1/FRSB%202014%2020%20-%20IR.pdf text en public doctoral Universiti Putra Malaysia Landscape architecture - Climatic factors
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Landscape architecture - Climatic factors
spellingShingle	Landscape architecture - Climatic factors Mah, Chen Ying Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia
description	The Urban Heat Island Effect is a common topic in research literature and newspapers nowadays. The aim of this study is to identify and evaluate the conditions of isolated landscape tree towards microclimate as compared to the open space without tree, as well as the comparison of microclimate under three various popular landscape trees, namely: Peltophorum pterocarpum (umbrella form), Mimusops elengi (round form), Mesua ferrea (conical form). Two sets of watch dog 2000 weather stations are used to collect the solar radiation, air temperature and relative humidity. One set is placed under the tree, another set is placed in the open space without tree. An AccurPAR LP80 is used to collect Leaf Area Index data. The study site is at University Putra Malaysia. The data analysis was conducted using R software (The R Foundation Statistical Computing) and Minitab statistical software. The research hypothesis is to study the microclimate conditions under tree species. The findings reveal that the tree species has a great reduction on solar radiation under tree canopy as compared to open space without tree. The solar radiation for Mimusops elengi (reduction 95.55%) is the lowest amongst the three species, Mesua ferrea ranked second, Peltophorum pterocarpum is third. However, the air temperature and relative humidity have no significantly different effects in ststisticsas compared to open space without tree, but the air temperature has slightly lower and relative humidity has a slight increment under tree canopy. The hypotensis testing develops the microclimate model which can be used as a tool for predicting the curve and estimating the percentage of decrement or increment of microclimate under the tree species. The trees with an umbrella form and round form are able to provide bigger shade compared to Mesua ferrea which has a conical form. The shade is able to intercept sunlight and diminish the solar radiation which affects the comfort of humans. Therfore, the size of canopy area is very important to influence urban heat island effect. The results from this study suggest that the selection of appropriate urban trees by the planners and landscape architects to ameliorate the Urban Heat Island effect in the design approach should also consider the tree species, which can provide bigger shade and higher Leaf Area Index.
format	Thesis
qualification_level	Doctorate
author	Mah, Chen Ying
author_facet	Mah, Chen Ying
author_sort	Mah, Chen Ying
title	Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia
title_short	Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia
title_full	Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia
title_fullStr	Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia
title_full_unstemmed	Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia
title_sort	microclimate modelling of mesua ferrea l., mimusops elengi l. and pheltophorum pterocarpum (dc) k. heyne in universiti putra malaysia
granting_institution	Universiti Putra Malaysia
publishDate	2014
url	http://psasir.upm.edu.my/id/eprint/70457/1/FRSB%202014%2020%20-%20IR.pdf
_version_	1747812842538532864

Microclimate modelling of mesua ferrea L., Mimusops Elengi L. and pheltophorum pterocarpum (DC) K. Heyne in Universiti Putra Malaysia

Similar Items