Land-use and land-cover analysis of Ilorin Emirate between 1986 and 2006 using landsat imageries

Olaleye, J. B.

doi:10.5897/ajest11.145

Cited by 13 publications

(11 citation statements)

References 10 publications

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“…However, some authors like Gordon & Richardson (2001) and Alberti & Marzluff (2004) recognized that fact but also strongly support the view that the problems of urban sprawl are far outweighed by its benefits in that it enables a growing number of people to live according to their desires. Despite the debate about urban sprawl, this paper has addressed the reality of cities expansion in Nigeria, calling for necessary planning policy as pointed out by Zubair (2008) and Olaleye et al (2012) in separate studies in Ilorin where the land consumption rate is similar to that of Ile-Ife. However, the causes of the increasing consumption of land as observed by Olorunfemi (1983) in Ilorin and by Tofowomo (2008) in Akure, need a more in-depth consideration.…”

Section: Discussionmentioning

confidence: 99%

“…The first two aspects were taken into consideration in this study and they are expressed by the Land Consumption Rate (LCR) and the Land Absorption Coefficient (LAC). The land consumption rate measures the compactness which indicates the level of the spatial expansion of a city while the land absorption coefficient measures the amount of changes in consumption of new urban land per unit increase in urban population (Amin & Fazal, 2012;Olaleye et al, 2012;Zubair, 2008;Jenson & Cowen, 1999;Olorunfemi, 2001;Yeates & Garner, 1976).…”

Section: Analysis Of Land Consumption and Absorptionmentioning

confidence: 99%

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Geospatial analysis of urban sprawl in Ile-Ife city, Nigeria

Oloukoi¹,

Oyinloye²,

Yadjemi³

2014

SA J of Geomatics

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This paper assesses the effects of urban expansion of Ile-Ife city and appraises the changes that occurred in the landscape from 1986 to 2009. The study made use of information extracted from Landsat TM 1986, ETM + 2002 and Ikonos 2009 images. GPS observations of notable points within and around the city were overlaid on the topographic map and on the satellite imageries in order to appraise the changes in the land use and land cover over the period. The land consumption was analyzed using the computed land consumption rate (LCR) and land absorption coefficient (LAC) from 1986 to 2009. The average annual rate of urban expansion of Ile-Ife is 3.5% which translated to a gain of 2256.7 ha in the surrounding rural areas from 1986 to 2002 and about 1434.7 ha between 2002 and 2009. The land is being transformed as shown by the land consumption rate which progressed from 1.1% in 1986 to 1.2% in 2002 and remained stable till 2009. The land absorption coefficient has increased from 0.013 to 0.014, confirming the high demand for land both within the city and in the suburbs.

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Section: Discussionmentioning

confidence: 99%

Section: Analysis Of Land Consumption and Absorptionmentioning

confidence: 99%

Geospatial analysis of urban sprawl in Ile-Ife city, Nigeria

Oloukoi¹,

Oyinloye²,

Yadjemi³

2014

SA J of Geomatics

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“…LCR and LAC analysis is applied only to the built-up land use. Built-up land use is the measure of urban development in the study area, LCR is equal to the measure of progressive spatial urbanization of a study area and LAC is equal to the measure of change of urban land by each unit increase in urban population (Olaleye et al, 2012).…”

Section: Methods Of Data Analysismentioning

confidence: 99%

Mapping the Impact of Land Use and Land Cover Change on Urban Land and Vegetation in Osun State, Nigeria

Abiodun

Akinola

2019

Nig. J. Env. Sci. & Tech.

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Urban expansion along with other changes in land use and land cover is a global phenomenon and most parts of Western Nigeria have experienced tremendous changes in recent past. Osun state, located in Western Nigeria, was originally made up of mostly traditional farming communities. These communities have witnessed rapid urbanisation in the last few decades and most of the communities previously known to be farming communities have transformed to modern well-known cities. This project examines the use of Remote Sensing in mapping of Land Use Land Cover in Osun state over a period of 30 years (1986 to 2016) using Landsat (MSS, TM, and ETM+) images. The aim of this study is to produce a land use/land cover map of Osun state at three epochs in order to detect the changes that have taken place particularly in the built up and Vegetation areas. Landsat Images of Osun state in 1986, 2006 and 2016 were processed into five land use classes namely: Water body, Vegetation, Wetland, Built-up and Bare land. Total area of land use in each class were determined along with percentage change area, Land Consumption Rate and Land Absorption Coefficients. The result of the work shows that built-up area changed from 20.52% in 1986 to 30.71% in 2006 and then 34.45% in 2016. Land Consumption rate was 0.068 in 2016 which is indication of highly compacted living environment. The minimum Land Absorption Coefficient observed was 0.027 in between 2006 and 2016, which indicates that land is acquired for built-up development at very high rate. The resultant effect of these observed changes was a reduction of the vegetation class from 35.82% in 1986 to 31.14% in 2006 and then 23.83% in 2016. The results in this study may influence new land policy that will enhance sustainable use of land in Osun state.

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“…The three villages were observed in different dates for change detection which is defined as the process of identifying differences in the state of an object or phenomenon by observing it at different times [11]. The study looked at the NWV of those three villages in the year of 2004 and the year of 2012 with 8 years interval using QuickBird satellite images with 60 cm resolution and Blue, Green, Red, NearIR bands.…”

Section: Satellite Images and Gis Analysismentioning

confidence: 99%

The Changes in the Natural Woody Vegetation in Some Yemeni Villages: Basics for Restoration Policies and Afforestation Programs

Alsanabani¹

2015

AJAF

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Abstract:The aim of the study is to detect the changes in the natural woody vegetation (NWV) of rural areas of Yemen and analyze the patterns of these changes. Three villages around Sana'a city were selected. To detect the changes, satellite images of different dates (2004 and 2012) for each village were obtained from the Yemeni Center for Remote Sensing. The result showed an increase of 53%, 49% and 90% for Anagah, Dhbir Khairh and Bait Hambus respectively. The differences among years were significant using a paired-samples t test. The study declined the general consensus by experts who consider that land vegetation cover is declining. Identification of plants' species that exist in the area showed a low biodiversity of only 6 species where two Acacia species as well as the shrub Lycium shawii represent 95%. Furthermore, comparing NWV among the villages and within plots presented valuable information for plantation strategies such as selecting trees with regenerative criterion and seeding each barren land with some regenerative trees. The study also noted the possible negative influence of industrial expansion and signified the importance of developing land-use plans to protect the natural vegetation.

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Land-use and land-cover analysis of Ilorin Emirate between 1986 and 2006 using landsat imageries

Cited by 13 publications

References 10 publications

Geospatial analysis of urban sprawl in Ile-Ife city, Nigeria

Geospatial analysis of urban sprawl in Ile-Ife city, Nigeria

Mapping the Impact of Land Use and Land Cover Change on Urban Land and Vegetation in Osun State, Nigeria

The Changes in the Natural Woody Vegetation in Some Yemeni Villages: Basics for Restoration Policies and Afforestation Programs

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