Temperature and relative humidity distributions in a medium-size administrative town in southwest Nigeria

Akinbode, O. M.; Eludoyin, Adebayo Oluwole; Fashae, Olutoyin Adeola

doi:10.1016/j.jenvman.2007.01.018

Cited by 75 publications

(45 citation statements)

References 11 publications

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“…Wong & Yu (2005) reported that urban forests could reduce the temperature up to 4.01 °C compared to the central business district. Spatial and temporal analysis of urban temperatures has revealed that vegetation-rich areas have lower temperatures (Akinbode et al 2008, Armson et al 2012) and the cooling effect was different among different land uses (Hamada et al 2013). Georgi & Zafiriadis (2006) found that maximum cooling and humidifying effects of urban parks were about 24% and 41%, respectively.…”

Section: Discussionmentioning

confidence: 99%

Microclimate regulating functions of urban forests in Changchun City (north-east China) and their associations with different factors

Wang¹,

Wang²,

Lu³

et al. 2018

iForest

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Microclimate regulating functions of urban trees and their associations with environmental factors and tree-growth characteristics are important for management and ecological evaluations. In this study, a total of 637 trees distributed in the Changchun urban region (ca. 400 km 2 , northeastern China) were sampled in four different types of urban forests (AF: affiliated forests; RF: roadside forests; LF: landscape and relaxation forests; EF: ecological welfare forests). Tree growth-related parameters and environmental factors (inside and outside the forest) were simultaneously measured, and location-dependent differences in shading, cooling and humidifying effects were assessed, along with their associations with the measured variables. We found that urban forests in Changchun reduced the incident sunlight by 74-86% and increased air relative humidity by 3-7%, on average. Air, soil, and upper-canopy temperatures were decreased approximately by 3 °C, <1 °C and 1 °C, respectively, showing a 3-dimensional cooling effect of urban forests on both air and soil. Shading, cooling and humidifying effects significantly differed among the four forest types, with AF stands showing the highest comprehensive scores for all the microclimate regulation functions. Regression analyses and redundancy analysis revealed that urban forests had much stronger effect in terms of microclimate regulation at sunny days with high temperature, and low air humidity. In general, stands with larger trees showed the higher regulating functions, regardless of the stand structure and composition. The results of this study may help urban forest management and planning aimed at maximizing their ecological services.

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Section: Discussionmentioning

confidence: 99%

Microclimate regulating functions of urban forests in Changchun City (north-east China) and their associations with different factors

Wang¹,

Wang²,

Lu³

et al. 2018

iForest

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“…Most towns and cities in Nigeria are characterised by transport and commercial activities that are capable of increasing the immediate temperature and contribute to the global temperature [45] (Figure 3). The day-time and night-time discrepancy in the savanna and tropical wet is supported by the difference in the relative humidity in these regions.…”

Section: Characterisation Of the Nigerian Thermal Climate Conditionsmentioning

confidence: 99%

A Perspective of the Diurnal Aspect of Thermal Comfort in Nigeria

Eludoyin¹

2014

ACS

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It also examines the responses from 3600 sample population from tertiary institutions across Nigeria. Results indicated thermal stress in Nigeria, and showed that both heat and cold stress varied temporally and spatially (1200 -1500 Local Standard Time, LST as the most thermally uncomfortable period of the day, while before 0900 and around 2100 LST were more comfortable). The study showed that judgment on climate issues were often beclouded by religious or ignorant sentiments. Efficient coping strategies for thermal stress are generally lacking, being limited by poor education, financial capacity and inadequate government commitment to cater for the health effects of extreme climate conditions. The study concluded that Nigeria, which exemplifies many developing countries, is not yet prepared for the effect of future climate change. The study recommends climate education, improves health schemes for climate-related morbidity and improves greening of the urban environment.

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“…Balogun et al [6] that the land use land cover pattern of a region is an outcome of natural and socio-economic factors and their utilization by man in time and space. Hence, the uncontrolled growth of urban development of Akure has adversely affected its ecosystem which may indirectly reflect on weather parameters with eventual local climate modification [20,6]. Akure city functions as the capital of Ondo State and the administrative headquarters of Akure South Local Government Area.…”

Section: Review Of Related Literaturementioning

confidence: 99%

Geospatial Analysis of Land Cover Change and Urban Sprawl Trend in Akure Region, Nigeria

Owoeye

2018

MOJES

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This study investigates the trend of urban sprawl and land cover change in Akure region between 1985 and 2014 using RS and GIS techniques with the view of examining the direction of the continuous expansion of the city. Using aerial imagery overlay (AIO), the pattern of land use changes in the study area was determined. Imageries obtained for the study were processed and classified, then overlaid to determine the pattern of changes in land use, direction and extent of expansion during the study period. Findings revealed that the city grows sporadically which had unprecedented effects on the pattern of land uses within the city and in the adjoining settlements. There were incompatible conversions in land uses and undue encroachment into green areas in the adjoining communities. In view of this, the study suggests effective zoning strategy to check the indiscriminate nature of urban expansion whose effects on land use are well prominent in the study area. Adequate monitoring by the Development Control Department and other stakeholders in urban planning is equally suggested to mitigate the incompatible land use change in the area.

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Temperature and relative humidity distributions in a medium-size administrative town in southwest Nigeria

Cited by 75 publications

References 11 publications

Microclimate regulating functions of urban forests in Changchun City (north-east China) and their associations with different factors

Microclimate regulating functions of urban forests in Changchun City (north-east China) and their associations with different factors

A Perspective of the Diurnal Aspect of Thermal Comfort in Nigeria

Geospatial Analysis of Land Cover Change and Urban Sprawl Trend in Akure Region, Nigeria

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