Geospatial Analysis of Urban Expansion and Its Impact on Vegetation Cover in Kaduna Metropolis, Nigeria

Akpu, Benedine; Tanko, Adamu Idris; Jeb, D. N.; Dogo, Bala

doi:10.9734/ajee/2017/31149

Cited by 10 publications

(7 citation statements)

References 2 publications

(2 reference statements)

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“…Kaduna metropolis covers Kaduna North and Kaduna South Local Government Areas and parts of Chikun and Igabi Local governments (Akpu et al, 2017) Igabi local government areas (Fig. 2).…”

Section: Study Areamentioning

confidence: 99%

Geospatial Analysis of Land Use Change and Wetland Dynamics in Kaduna Metropolis, Kaduna - Nigeria

Lawal

Abdussalam

2023

Preprint

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Wetlands are among the most precious ecosystems in the world, sensitive to changes in land use, affecting their distribution, health, quality, functions and provisioning services they provide. This study assessed how land use change and socio-economic activities are driving wetland conversions in Kaduna Metropolis from 1986 to 2020. Landsat images (189/053) and SRTM DEM were obtained from USGS. These images were processed using ERDAS Imagine 2014 and the study area was extracted using mask tool. Decision-tree classification was used to identify and map the wetlands in the study area, and indices-based classification using eCognition 9.0 was used to carry out the land use land cover change detection. Result of the analysis showed an overall accuracy of 94% (0.93 Kappa) for 1986 classification, and 90% (0.88 Kappa) for the 2020 classification. The study revealed that only the built-up areas increased from 72.47 km2 to 239.88 km2, riparian vegetation reduced from 88.39 km2 to 70.96 km2, open water bodies reduced from 6.67 km2 to 4.89 km2, agricultural land also reduced from 424.80 km2 to 356.99 km2, bare land reduced from 169.22 km2 to 101.21 km2 and undisturbed vegetation also reduced from 150.39 km2 to 138.56 km2. The study concluded that settlement expansion as the primary driver of wetland changes in Kaduna metropolis. The study therefore recommends creation of buffer zones around the wetlands in order to prevent further encroachment.

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“…Kaduna metropolis covers Kaduna North and Kaduna South Local Government Areas and parts of Chikun and Igabi Local governments (Akpu et al, 2017) Igabi local government areas (Fig. 2).…”

Section: Study Areamentioning

confidence: 99%

Geospatial Analysis of Land Use Change and Wetland Dynamics in Kaduna Metropolis, Kaduna - Nigeria

Lawal

Abdussalam

2023

Preprint

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“…Kaduna metropolis is the capital of Kaduna State, located on the southern end of the high plains of Northern Nigeria, gridded by 10°20' N and 10°37' N of the Equator and Longitudes 7° 22' E and 7°31' E of the Greenwich meridian with the elevation ranging from 600 to 650 m above mean sea level [37] . The study area is firmly drawn around developed areas of the metropolis.…”

Section: Study Areamentioning

confidence: 99%

Effect of Mishandling and Vending of Used Engine Oil on the Environment, Health and Urban Planning in Kaduna Metropolis: A Call to Action for a Paradigm Shift

Shehu,

Azi,

Dyachia Zakka

et al. 2023

upc

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This study examined the effect of mishandling and vending of used engine oil (UEO) on the environment, health, and urban planning. An evaluation of UEO handling, environmental and public health effects, spatial distribution of UEO vendors and contributing factors to choice of location, and the relationship between the vending location and the contributing factors to the choice of the location was provided. The research adopted multiple approaches including questionnaire administration, interview, observation, and application of a Global Positioning System, Geographic Information System, measuring tape, and a camera. An accidental/snowball sampling technique was viable for the study. Data collected were processed using Microsoft Excel. Descriptive and inferential statistical techniques were used. Results revealed the UEO was acquired from mechanic garages (41%) and stored in plastic containers (74%) until it was completely disposed of (91%). 52% had a hazy knowledge of the environmental effect of UEO, yet 45% rated the extent of its contamination as high. 59% were aware of its potential hazard which can get into the human body through ingestion but did not know it could get into the human body through contact with skin (74%) or breathing (61%). However, 84% wash their hands before a meal, with soap/water (67%), and change clothes after handling the used engine oil (69%). Most of the spots were located within 0-20 meters from the road (11), along the highways, occupying the metalled portion of the road, the road shoulders, setbacks, and walkways, blocking drainages and affecting the visual and aesthetic value of the environment. A larger proportion (40) revealed that visibility/accessibility guided their choice of location. Also, a low correlation coefficient of 0.32 was recorded. The study recommended the promotion of awareness programs, enforcement of environmental regulations, good hygiene practices, enforcement of standards and development regulations, and application of smart technology and big data.

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“…Nigeria loses about 350,000-400,000 hectares of vegetation a year due to LULC, human activities, and climate change (Akpu et al 2017). As a result of LULC, Nigeria lost 21% of its forests between 1990 and 2005 (Aju et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Cropland is increasing at an average of 554,657 hectares per year, while the forested area is diminishing at a rate of 105,865 hectares per year in Nigeria (Ogar et al 2016). Much vegetation has been deliberately removed for infrastructural development, fuel wood, mineral exploration, expansion of settlements, and other LULC (Akpu et al 2017;Akpu et al 2017). For example, 65 of 560 tree species in Nigeria face extinction, while many others are at different stages of risk (Soule et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Vegetation Change in Katsina State, Nigeria: Influence of Local Perceptions and Land Use Land Cover Dynamics

Ahmad

Jibrin

Ahmed

et al. 2023

Preprint

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Changing vegetation affects microclimates, groundwater tables, desertification, and biodiversity at the landscape level. The objective of this study is to assess the land cover dynamics and local perception of the influence of land use on vegetation change in Katsina State, Nigeria. Remote sensing and Geographic Information System (GIS)-based analysis, key informant interviews, and a semi-structured questionnaire covering 400 households were used to examine the driving forces behind vegetation change across Katsina State. As a result of the household survey, 86.5% (n = 400) of respondents reported a decline in vegetation in the study area, aligning with the Land Use Land Cover analysis phase of the study. The key drivers behind the observed vegetation depletion in the study area include firewood collection, charcoal production, and population growth. There has been an increasing awareness that education has emerged as one of the most significant socioeconomic factors influencing respondents' perceptions of these drivers. In spite of this, the unsustainable vegetation changes observed in this study have a negative impact on rural livelihoods and the management of natural resources in rural areas. This study recommends the implementation of sustainable land use policies that promote land-use practises that support economic growth and development.

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Geospatial Analysis of Urban Expansion and Its Impact on Vegetation Cover in Kaduna Metropolis, Nigeria

Cited by 10 publications

References 2 publications

Geospatial Analysis of Land Use Change and Wetland Dynamics in Kaduna Metropolis, Kaduna - Nigeria

Geospatial Analysis of Land Use Change and Wetland Dynamics in Kaduna Metropolis, Kaduna - Nigeria

Effect of Mishandling and Vending of Used Engine Oil on the Environment, Health and Urban Planning in Kaduna Metropolis: A Call to Action for a Paradigm Shift

Vegetation Change in Katsina State, Nigeria: Influence of Local Perceptions and Land Use Land Cover Dynamics

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