Spatial Assessment of Temperature and Land Cover Change as Climate Change Monitoring Strategies in Owerri, Nigeria

Ukaegbu, K; Iwuji, M; Uche, Cosmas Chinedu; Osumgborogwu, Ikenna; Amangabara, Gordon T.

doi:10.9734/jgeesi/2017/34568

Cited by 4 publications

(4 citation statements)

References 5 publications

(6 reference statements)

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“…[19], FAO [20] for land cover and land use class classifications. On this note therefore, this study adopted five classes based on the geography of the study area and in conformity with other scholars particularly Okeke, Nnaji, et al, Njoku, et al [21] and Ukaegbu, et al, [22]…”

Section: The Study Areamentioning

confidence: 76%

Assessment and Trend of Land Cover Land Use Changes in Owerri and Environs, South Eastern Nigeria

Echebima¹,

Obafemi²,

Ndukwu³

2019

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This study examined land cover and land use changes (LCLUC) in Owerri and environs from 1986 to 2016 and went further to determine the trend in the change of each LCLUC class. The satellite imagery of the area over the three decades was characterized into the different LCLUC classes and the changes in the areal extent of the different LCLUC classes were calculated and plotted, followed with the estimation of the trend using linear regression analysis method. The result revealed that over the three decades, forests and sparse vegetation respectively decreased at a rate of 0.73% and 0.05% of the total land area per year while built up areas increased almost equally in the opposite direction at a rate of 0.65% of the total land area per year. Open spaces and water bodies decreased at the rate of 0.11% and 0.02% of the total land area respectively which were as a result of the pressure for resources like land and sand for built infrastructure. A model was derived for the LCLUC and it revealed that Owerri and environs may be devoid of vegetal cover in about 2 decades (2039) if the current rate of conversion of forests to built-up infrastructure is not abated. This whole LCLUC scenario if not controlled may trigger changes in the local climate of the area and urgent steps are therefore needed to create awareness to all the stakeholders in the area on the need for sustainable land and natural resources use, tree planting, urban spatial plan and controls in order to safeguard the environment, ecosystem and climate of the area for the future.

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Section: The Study Areamentioning

confidence: 76%

Assessment and Trend of Land Cover Land Use Changes in Owerri and Environs, South Eastern Nigeria

Echebima¹,

Obafemi²,

Ndukwu³

2019

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“…The study revealed that decline in vegetation covers has influence continuous increase in its radiant surface temperature as the cooling effect of vegetation cover is lost to impervious surfaces that litter the urban landscape. Ukaegbu et al (2016) study on Spatial Assessment of Temperature and Land Cover Change as Climate Change Monitoring Strategies which was carried out in Owerri within three decades to evaluate land cover and temperature variation as the climatic change in the city. The study argued that climate change resulted from development activities contributing to the increasing urban heat in the city.…”

Section: Literature Review Relationship Between Lulc and Lstmentioning

confidence: 99%

Variation in land use cover and surface temperature of Kubwa, Federal Capital Territory, Nigeria

Abbas¹,

Morenikeji²,

Dalil³

et al. 2022

ETSJ

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Increasing human activity within the urban area brings massive changes in Land/Land Cover patterns and has an obvious effect of changes to urban ecosystems that make urban areas fragile. These conversions result in the appearance of numerous micro and mesoscale climates, warmer than the original climate and that of surrounding areas. This paper analyzed urban surface temperature variation on vegetal cover loss in Kubwa, FCT, Abuja. The study employed the used Landsat imageries of (1990, 2000, 2010 and 2020) to analyse land cover changes and land surface temperature. The study revealed that built-up area increase from 1990-2000 with 166% and 80% in 2010 and the year 2020 recorded an average of 23%. Bare surface decreased by -25% between (1990 -2000); further decreased from 3028.5 to 1979.6 hectares and -14% between 2010-2020. The study established that the LST value in 1990 Kubwa was 15℃ and 32.4℃ with a mean value of 23.7℃. The minimum and maximum LST of Kubwa in 2000 was 25℃ and 35℃ with mean of 30℃. The trend further continues, in the year 2010, minimum and maximum LST of 25℃ and 35℃ with a mean of 30℃ and in 2020 with a minimum and maximum LST of 25℃ and 40℃ with mean of 32.5℃. The analysis revealed that temperature variation increases between 1990, 2000, and 2010 were 0.4°C. There was 2°C in LST between the 2010 and 2020 due to urban expansion, infrastructure development, population growth and anthropogenic activities. The study recommends improvements of urban green infrastructure; and the FCT administration should embark into afforestation in order to restore the depleted vegetal land cover of the study area.

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“…In the past few decades, climatic changes have been witnessed globally, and in Nigeria, the changing climate is evident from temperature increase, rainfall variability amongst other changes. These changes can be quite alarming when juxtaposed with some important climatic indices such as temperature, rainfall, and humidity, as shown in many studies such as [3]. Climate change as a global issue has affected environmental sustainability due to its negative effects on the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Spatial Assessment of Temperature, Rainfall and Land Cover Change as Climate Change Monitoring Techniques in Okigwe and Its Environs

Iwuji

Cajetan²,

Ukaegbu³

et al. 2022

IJECC

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Climate change is an alarming global environmental change phenomena that is constituting a serious threat to natural, social, cultural, and human systems. Its associated risks require a wide range of policy responses and techniques at all levels from local to global. This study sought to evaluate the changes in climatic parameters over three decades as monitoring techniques in Okigwe, Imo State, Nigeria, based on evaluated land cover and temperature variation using Landsat 5 TM, Landsat 7 ETM+ and Landsat 8 ETM+ satellite data of 1986, 2003, and 2020 respectively. Precipitation data from 1990-2020 of the study area was used to evaluate rainfall variation as climatic change parameters over three decades. Results of the geospatial analysis indicates that climate change has become a fallout from developmental activities taking place in Okigwe, which obviously is impacting on all facets of human activities thereby militating against sustainable development. Implicitly, changes in built-up areas or surfaces significantly produced a corresponding effect in escalating urban heat in the city. This study recommends the enforcement of dequate land use planning via adopting green city planning techniques in infrastructural development.

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Spatial Assessment of Temperature and Land Cover Change as Climate Change Monitoring Strategies in Owerri, Nigeria

Cited by 4 publications

References 5 publications

Assessment and Trend of Land Cover Land Use Changes in Owerri and Environs, South Eastern Nigeria

Assessment and Trend of Land Cover Land Use Changes in Owerri and Environs, South Eastern Nigeria

Variation in land use cover and surface temperature of Kubwa, Federal Capital Territory, Nigeria

Spatial Assessment of Temperature, Rainfall and Land Cover Change as Climate Change Monitoring Techniques in Okigwe and Its Environs

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