VEGETATION EFFECTS ON CLIMATE CHANGE AND OUTDOOR THERMAL COMFORT OF STUDENTS IN NORTHEAST NIGERIA UNIVERSITY CAMPUSES

A CASE STUDY AT UNIVERSITY OF MAIDUGURI

Authors

  • KABIRU HARUNA ABDULKARIM Department of Architectural Technology, School of Environment Technology, Abubakar Tatari Ali Polytechnic, 100989, Bauchi, Nigeria Author
  • ALIYU ABUBAKAR MUNKAILA Department of Architectural Technology, School of Environment Technology, Federal Polytechnic, 100989, Bauchi, Nigeria Author
  • MOHAMMED SA’AD YELWA Department of Architectural Technology, School of Environment Technology, Abubakar Tatari Ali Polytechnic, 100989, Bauchi, Nigeria Author
  • YAKUBU YOHANNA ADAMU Federal Polytechnic, 100989, Bauchi, Nigeria Author
  • MOHAMMED ALIYU ABDULLAHI Department of Architecture, Faculty of Environment Design, Ahmadu Bello University, Zaria, Kaduna, Nigeria Author

Keywords:

Outdoor Thermal Comfort, Psychological Equivalent Temperature (PET), Envi-met Simulation, RayMan Meteorological Model, Canopy Cover Percentage

Abstract

Frequent increases in temperature and associated consequences have been the dominant phenomenon for more than ten decades, with a general rise of about 0.740C. In Nigeria, the Northeast region has been the most affected, especially university campuses in the zone. This study aimed to evaluate the effects of different percentage covers of tree canopies for outdoor thermal comfort improvement. The University of Maiduguri was used as a sample case study for this research work. Firstly, the study involved on-site measurement of the site’s existing features and climatic conditions. Hobo Data Loggers (HOBO MX2302A), as well as MASTECH MS6252B Digital Anemometer, were used for air temperature, relative humidity, and wind speed. Secondly, simulations for different scenarios of vegetation covers were performed. The simulation was done to evaluate the plant-surface-atmosphere interactions with Envi-met Version 5.5. The vegetation effects were evaluated for outdoor air temperature, mean radiant temperature (MRT), wind speed, and relative humidity. Lastly, the output of the simulation was channeled to RayMan software for evaluation of the outdoor thermal comfort indices. Thus, Modified Physiologically Equivalent Temperature (mPET) was employed for this study. The study postulated that 30% vegetation cover is the ideal percentage required to improve the climatic condition of this study area and other campuses within the Sahel Savannah region. The study recommends the need for the campus stakeholders to ensure an increase of vegetation on campus to a level of 30% cover for improved thermal comfort of students and other users of the environment.

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Published

08-11-2024

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How to Cite

KABIRU HARUNA ABDULKARIM, ALIYU ABUBAKAR MUNKAILA, MOHAMMED SA’AD YELWA, YAKUBU YOHANNA ADAMU, & MOHAMMED ALIYU ABDULLAHI. (2024). VEGETATION EFFECTS ON CLIMATE CHANGE AND OUTDOOR THERMAL COMFORT OF STUDENTS IN NORTHEAST NIGERIA UNIVERSITY CAMPUSES: A CASE STUDY AT UNIVERSITY OF MAIDUGURI. Journal of Biodiversity and Environmental Research, 6(4). https://ssaapublications.com/sjber/article/view/346

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