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Landscaping of Residential Estates as a Mitigation Measure to Reduce Carbon Dioxide and Temperature Levels in Inner Ibadan City, Nigeria

Received: 18 June 2019     Accepted: 12 August 2019     Published: 29 September 2019
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Abstract

This study assessed the spatial distribution of carbon dioxide emanation in selected residential estates and the impact of landscaping in reducing their levels in Ibadan metropolis. The study was carried out in high, medium and low commercial activity areas characterized by population density and traffic congestion within Ibadan city. CO2 concentrations and temperature were measured at 4 hourly interval from 9am to 5pm for a period of seven consecutive days while numbers of trees/plants (biomass density) were counted, at 21 different points from seven areas each with high, medium and low commercial activities. Measurements were carried out with the aid of calibrated portable gas meters. The means CO2 (ppm) were 542±95, 415±11 and 376±14 at 1.00 pm in the high, medium and low commercial activity areas respectively. CO2 concentrations were generally higher than IPCC value, but highest in the afternoon. Temperature values were generally higher in the afternoon in high and medium commercial activity areas, but lower in the low commercial activity zones. Significantly, density of trees in low commercial activity areas (234.3±6.7) was higher compared to those in medium (22.8±0.5) and high (24.2±0.7) activity areas respectively. An inverse correlation was observed between CO2 concentration and the density of trees (r=-0.456; p=0.038). The spatial distribution of CO2 concentration in relation to landscaping revealed that CO2 concentration reduces northward away from the urban core areas where there were fewer trees. The areas with low commercial activities had large numbers of trees while temperature and CO2 flux were lower in these areas. Temperature and density of trees contribute significantly in explaining the CO2 concentration (p=0.015). CO2 concentrations and temperature were high in high commercial activities areas in Ibadan metropolis, few or no trees were observed in those areas. Increase in density of trees could be attributed to decrease in the CO2 concentration. Hence, tree planting needs to be encouraged in the urban core of Ibadan metropolis to reduce air pollution.

Published in International Journal of Environmental Monitoring and Analysis (Volume 7, Issue 5)
DOI 10.11648/j.ijema.20190705.11
Page(s) 93-102
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Spatial Distribution, Carbon Dioxide Level, Temperature, Ibadan Metropolis, Landscape

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Cite This Article
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    Tejumola Adesoye, Mynepalli Kameswara Chandra Sridhar, Akinwale Oladotun Coker, Mumuni Adejumo Mumuni Adejumo. (2019). Landscaping of Residential Estates as a Mitigation Measure to Reduce Carbon Dioxide and Temperature Levels in Inner Ibadan City, Nigeria. International Journal of Environmental Monitoring and Analysis, 7(5), 93-102. https://doi.org/10.11648/j.ijema.20190705.11

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    ACS Style

    Tejumola Adesoye; Mynepalli Kameswara Chandra Sridhar; Akinwale Oladotun Coker; Mumuni Adejumo Mumuni Adejumo. Landscaping of Residential Estates as a Mitigation Measure to Reduce Carbon Dioxide and Temperature Levels in Inner Ibadan City, Nigeria. Int. J. Environ. Monit. Anal. 2019, 7(5), 93-102. doi: 10.11648/j.ijema.20190705.11

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    AMA Style

    Tejumola Adesoye, Mynepalli Kameswara Chandra Sridhar, Akinwale Oladotun Coker, Mumuni Adejumo Mumuni Adejumo. Landscaping of Residential Estates as a Mitigation Measure to Reduce Carbon Dioxide and Temperature Levels in Inner Ibadan City, Nigeria. Int J Environ Monit Anal. 2019;7(5):93-102. doi: 10.11648/j.ijema.20190705.11

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  • @article{10.11648/j.ijema.20190705.11,
      author = {Tejumola Adesoye and Mynepalli Kameswara Chandra Sridhar and Akinwale Oladotun Coker and Mumuni Adejumo Mumuni Adejumo},
      title = {Landscaping of Residential Estates as a Mitigation Measure to Reduce Carbon Dioxide and Temperature Levels in Inner Ibadan City, Nigeria},
      journal = {International Journal of Environmental Monitoring and Analysis},
      volume = {7},
      number = {5},
      pages = {93-102},
      doi = {10.11648/j.ijema.20190705.11},
      url = {https://doi.org/10.11648/j.ijema.20190705.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20190705.11},
      abstract = {This study assessed the spatial distribution of carbon dioxide emanation in selected residential estates and the impact of landscaping in reducing their levels in Ibadan metropolis. The study was carried out in high, medium and low commercial activity areas characterized by population density and traffic congestion within Ibadan city. CO2 concentrations and temperature were measured at 4 hourly interval from 9am to 5pm for a period of seven consecutive days while numbers of trees/plants (biomass density) were counted, at 21 different points from seven areas each with high, medium and low commercial activities. Measurements were carried out with the aid of calibrated portable gas meters. The means CO2 (ppm) were 542±95, 415±11 and 376±14 at 1.00 pm in the high, medium and low commercial activity areas respectively. CO2 concentrations were generally higher than IPCC value, but highest in the afternoon. Temperature values were generally higher in the afternoon in high and medium commercial activity areas, but lower in the low commercial activity zones. Significantly, density of trees in low commercial activity areas (234.3±6.7) was higher compared to those in medium (22.8±0.5) and high (24.2±0.7) activity areas respectively. An inverse correlation was observed between CO2 concentration and the density of trees (r=-0.456; p=0.038). The spatial distribution of CO2 concentration in relation to landscaping revealed that CO2 concentration reduces northward away from the urban core areas where there were fewer trees. The areas with low commercial activities had large numbers of trees while temperature and CO2 flux were lower in these areas. Temperature and density of trees contribute significantly in explaining the CO2 concentration (p=0.015). CO2 concentrations and temperature were high in high commercial activities areas in Ibadan metropolis, few or no trees were observed in those areas. Increase in density of trees could be attributed to decrease in the CO2 concentration. Hence, tree planting needs to be encouraged in the urban core of Ibadan metropolis to reduce air pollution.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Landscaping of Residential Estates as a Mitigation Measure to Reduce Carbon Dioxide and Temperature Levels in Inner Ibadan City, Nigeria
    AU  - Tejumola Adesoye
    AU  - Mynepalli Kameswara Chandra Sridhar
    AU  - Akinwale Oladotun Coker
    AU  - Mumuni Adejumo Mumuni Adejumo
    Y1  - 2019/09/29
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ijema.20190705.11
    DO  - 10.11648/j.ijema.20190705.11
    T2  - International Journal of Environmental Monitoring and Analysis
    JF  - International Journal of Environmental Monitoring and Analysis
    JO  - International Journal of Environmental Monitoring and Analysis
    SP  - 93
    EP  - 102
    PB  - Science Publishing Group
    SN  - 2328-7667
    UR  - https://doi.org/10.11648/j.ijema.20190705.11
    AB  - This study assessed the spatial distribution of carbon dioxide emanation in selected residential estates and the impact of landscaping in reducing their levels in Ibadan metropolis. The study was carried out in high, medium and low commercial activity areas characterized by population density and traffic congestion within Ibadan city. CO2 concentrations and temperature were measured at 4 hourly interval from 9am to 5pm for a period of seven consecutive days while numbers of trees/plants (biomass density) were counted, at 21 different points from seven areas each with high, medium and low commercial activities. Measurements were carried out with the aid of calibrated portable gas meters. The means CO2 (ppm) were 542±95, 415±11 and 376±14 at 1.00 pm in the high, medium and low commercial activity areas respectively. CO2 concentrations were generally higher than IPCC value, but highest in the afternoon. Temperature values were generally higher in the afternoon in high and medium commercial activity areas, but lower in the low commercial activity zones. Significantly, density of trees in low commercial activity areas (234.3±6.7) was higher compared to those in medium (22.8±0.5) and high (24.2±0.7) activity areas respectively. An inverse correlation was observed between CO2 concentration and the density of trees (r=-0.456; p=0.038). The spatial distribution of CO2 concentration in relation to landscaping revealed that CO2 concentration reduces northward away from the urban core areas where there were fewer trees. The areas with low commercial activities had large numbers of trees while temperature and CO2 flux were lower in these areas. Temperature and density of trees contribute significantly in explaining the CO2 concentration (p=0.015). CO2 concentrations and temperature were high in high commercial activities areas in Ibadan metropolis, few or no trees were observed in those areas. Increase in density of trees could be attributed to decrease in the CO2 concentration. Hence, tree planting needs to be encouraged in the urban core of Ibadan metropolis to reduce air pollution.
    VL  - 7
    IS  - 5
    ER  - 

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Author Information
  • Department of Civil Engineering, University of Ibadan, Ibadan, Nigeria

  • Department of Environmental Health Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria

  • Department of Civil Engineering, University of Ibadan, Ibadan, Nigeria

  • Department of Environmental Health Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria

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