Effects of vegetation covers for outdoor thermal improvement: a case study at Abubakar Tafawa Balewa University Bauchi Nigeria


Citation

Abd Ghafar Azmiah, . and Abdulkarim Kabiru Haruna, . and Lee Yoke Lai, . and Ismail Said, . Effects of vegetation covers for outdoor thermal improvement: a case study at Abubakar Tafawa Balewa University Bauchi Nigeria. pp. 2125-2147. ISSN 2231-8526

Abstract

Frequent increases in temperature and related consequences have been the trending phenomenon for over ten decades with a general rise of about 0.740C. This study evaluates the effects of different percentage covers of tree canopies for outdoor thermal improvement of campus areas in Bauchi Nigeria. Firstly the study involves on-site measurement of existing features on the site and the climatic conditions. Secondly performing simulation for evaluation of the plant-surface-atmosphere interactions with Envi-met Version 4.4.2. The vegetation effects were evaluated for outdoor air temperature and mean radiant temperature (MRT) reduction. It is found that the maximum air temperature reduction of 3.380C and 24.240C of MRT were achieved with up to 45 tree canopy coverage. The mean air temperature and MRT reduction of 0.630C and 4.800C were respectively achieved with the same percentage coverage of the canopies. However it was found that the thermal reduction effects of vegetation do not apply to every hour of the day. In essence proper planning and implementation of campus outdoor spaces is the key factor in improving its thermal conditions. Thus adhering to the practical recommendations bring a significant improvement in ameliorating the rise in atmospheric temperature on campus outdoors.


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Abstract

Frequent increases in temperature and related consequences have been the trending phenomenon for over ten decades with a general rise of about 0.740C. This study evaluates the effects of different percentage covers of tree canopies for outdoor thermal improvement of campus areas in Bauchi Nigeria. Firstly the study involves on-site measurement of existing features on the site and the climatic conditions. Secondly performing simulation for evaluation of the plant-surface-atmosphere interactions with Envi-met Version 4.4.2. The vegetation effects were evaluated for outdoor air temperature and mean radiant temperature (MRT) reduction. It is found that the maximum air temperature reduction of 3.380C and 24.240C of MRT were achieved with up to 45 tree canopy coverage. The mean air temperature and MRT reduction of 0.630C and 4.800C were respectively achieved with the same percentage coverage of the canopies. However it was found that the thermal reduction effects of vegetation do not apply to every hour of the day. In essence proper planning and implementation of campus outdoor spaces is the key factor in improving its thermal conditions. Thus adhering to the practical recommendations bring a significant improvement in ameliorating the rise in atmospheric temperature on campus outdoors.

Additional Metadata

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Item Type: Article
AGROVOC Term: Universities
AGROVOC Term: Urban areas
AGROVOC Term: Environmental assessment
AGROVOC Term: Climate
AGROVOC Term: Vegetation
AGROVOC Term: Tree canopy
AGROVOC Term: Recreational areas
AGROVOC Term: Air temperature
AGROVOC Term: Atmospheric temperature
AGROVOC Term: Climatic factors
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:55
URI: http://webagris.upm.edu.my/id/eprint/10026

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