Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil

The research work focuses on the measurements of carbon dioxide flux, en-ergy fluxes and evapotranspiration of the oil palm canopy for oil palm trees planted on mineral soil. The first aim of this research is to assess the responses of the oil palm canopy (in terms of carbon dioxide flux) to changes...

Full description

Saved in:

Bibliographic Details
Main Author:	Ibrahim, Anis Suriani
Format:	Thesis
Language:	English
Published:	2019
Subjects:	QA76.575 Multimedia systems and Internet
Online Access:	http://eprints.usm.my/48668/1/ANIS%20SURIANI%20IBRAHIM24.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.48668
record_format	uketd_dc
spelling	my-usm-ep.486682021-03-19T02:21:08Z Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil 2019-05 Ibrahim, Anis Suriani QA76.575 Multimedia systems and Internet The research work focuses on the measurements of carbon dioxide flux, en-ergy fluxes and evapotranspiration of the oil palm canopy for oil palm trees planted on mineral soil. The first aim of this research is to assess the responses of the oil palm canopy (in terms of carbon dioxide flux) to changes in meteorology and season while the second aim is to assess the performance of the evapotranspiration models (Penman-Monteith and Bowen Ratio Energy Balance) for the oil palm canopy. The sampling was conducted over a 25-month period using 30-min averaging time of eddy covariance method in Keratong, Pahang. Results show that the oil palm is very productive tropical C3 plant in which it assimilates 4.3 μmol m–2 s–1 (60 t ha–1 yr–1) of carbon dioxide from the atmosphere. The monsoonal (the Northeast and South-west monsoons) and the diurnal variations of carbon dioxide flux, energy flux and evapotranspiration exhibit notable patterns. On the monsoonal timescale, the varia-tions in the net radiation and the vapour pressure deficit leads to the increase in car-bon dioxide assimilations. The vapour pressure deficit threshold for the stomata was also observed to be >2000 Pa and >1000 Pa for the Southwest and Northeast mon-soons, respectively. The evapotranspiration models’ performance analyses show that the Penman-Monteith model tend to underestimate the actual evapotranspiration by 2% while the Bowen Ratio Energy Balance model overestimate actual evapotranspi-ration by 17%. 2019-05 Thesis http://eprints.usm.my/48668/ http://eprints.usm.my/48668/1/ANIS%20SURIANI%20IBRAHIM24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Teknologi Pengajaran & Multimedia
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QA76.575 Multimedia systems and Internet
spellingShingle	QA76.575 Multimedia systems and Internet Ibrahim, Anis Suriani Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil
description	The research work focuses on the measurements of carbon dioxide flux, en-ergy fluxes and evapotranspiration of the oil palm canopy for oil palm trees planted on mineral soil. The first aim of this research is to assess the responses of the oil palm canopy (in terms of carbon dioxide flux) to changes in meteorology and season while the second aim is to assess the performance of the evapotranspiration models (Penman-Monteith and Bowen Ratio Energy Balance) for the oil palm canopy. The sampling was conducted over a 25-month period using 30-min averaging time of eddy covariance method in Keratong, Pahang. Results show that the oil palm is very productive tropical C3 plant in which it assimilates 4.3 μmol m–2 s–1 (60 t ha–1 yr–1) of carbon dioxide from the atmosphere. The monsoonal (the Northeast and South-west monsoons) and the diurnal variations of carbon dioxide flux, energy flux and evapotranspiration exhibit notable patterns. On the monsoonal timescale, the varia-tions in the net radiation and the vapour pressure deficit leads to the increase in car-bon dioxide assimilations. The vapour pressure deficit threshold for the stomata was also observed to be >2000 Pa and >1000 Pa for the Southwest and Northeast mon-soons, respectively. The evapotranspiration models’ performance analyses show that the Penman-Monteith model tend to underestimate the actual evapotranspiration by 2% while the Bowen Ratio Energy Balance model overestimate actual evapotranspi-ration by 17%.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Ibrahim, Anis Suriani
author_facet	Ibrahim, Anis Suriani
author_sort	Ibrahim, Anis Suriani
title	Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil
title_short	Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil
title_full	Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil
title_fullStr	Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil
title_full_unstemmed	Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil
title_sort	carbon dioxide, energy fluxes and evapotranspiration of the oil palm canopy on mineral soil
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Teknologi Pengajaran & Multimedia
publishDate	2019
url	http://eprints.usm.my/48668/1/ANIS%20SURIANI%20IBRAHIM24.pdf
_version_	1747821959676166144

Carbon Dioxide, Energy Fluxes And Evapotranspiration Of The Oil Palm Canopy On Mineral Soil

Similar Items