Project – Impact of Urban Sprawl on Agricultural Land Conversion in Suleja Local Government Area, Niger State, Nigeria

CHAPTER ONE

INTRODUCTION

1.1 Background to the Study

Urban sprawl is one of the most significant manifestations of rapid urbanization, particularly in developing countries where population growth and weak land-use planning intersect. It refers to the uncontrolled and low-density expansion of urban areas into surrounding rural and peri-urban lands, often leading to the conversion of agricultural land, forests, and open spaces into built-up environments (Seto, Güneralp & Hutyra, 2012). This phenomenon is driven by population pressure, rural–urban migration, housing demand, infrastructure expansion, land speculation, and inadequate urban planning enforcement.

Globally, urban expansion is occurring at an unprecedented rate. The United Nations estimates that urban areas will absorb nearly all future population growth, with significant implications for land consumption and agricultural sustainability (UN-Habitat, 2020). One of the most critical consequences of this expansion is the loss of agricultural land, which threatens food security and rural livelihoods.

In sub-Saharan Africa, urban sprawl is particularly intense due to rapid demographic changes and weak regulatory frameworks. Cities expand outward in an uncoordinated manner, often without formal planning approval, leading to the gradual encroachment on fertile agricultural land (UN-Habitat, 2014). This trend is especially concerning because agriculture remains a key source of livelihood and food production in the region.

Nigeria is one of the fastest urbanizing countries in Africa, with urban growth occurring at a rate of over 4% annually. This rapid expansion has led to the continuous transformation of rural and peri-urban landscapes into residential, commercial, and infrastructural developments (Olotuah & Taiwo, 2015). As cities expand, agricultural land located at the urban fringe is increasingly converted for housing and other non-agricultural uses, reducing available farmland and affecting agricultural productivity.

Suleja Local Government Area in Niger State is a typical example of a peri-urban area experiencing intense urban sprawl due to its proximity to the Federal Capital Territory (Abuja). The spillover growth from Abuja has significantly influenced land use dynamics in Suleja, resulting in the rapid conversion of agricultural land into residential estates, commercial buildings, and transportation infrastructure. Studies have shown that Suleja has experienced continuous urban expansion driven by population increase and migration, leading to substantial land use transformation over time (Mohammed et al., 2022; Bamiji et al., 2023).

Research evidence indicates that built-up areas in Suleja have expanded significantly while vegetation and agricultural land have declined. For example, land use studies using remote sensing techniques reveal a steady increase in urban land cover at the expense of farmland between 1987 and 2012, reflecting the broader trend of urban encroachment into agricultural zones (Ejaro & Abdullahi, 2012). This transformation has implications not only for land availability but also for environmental sustainability, food production, and rural livelihoods.

The conversion of agricultural land due to urban sprawl in Suleja also raises concerns about long-term sustainability. Agricultural land plays a critical role in food production, employment, and ecological balance. Its continuous loss contributes to reduced local food production capacity, increased dependence on external food sources, and environmental degradation such as soil erosion and loss of biodiversity.

Therefore, assessing the impact of urban sprawl on agricultural land conversion in Suleja Local Government Area is essential for understanding the extent of land transformation and its implications for sustainable development and land-use planning.

1.2 Statement of the Problem

Urban sprawl in Suleja Local Government Area has become increasingly rapid and largely unregulated, leading to extensive conversion of agricultural land into urban uses. Despite existing land-use policies and planning frameworks, the area continues to experience uncontrolled expansion driven by its proximity to Abuja and increasing population pressure.

One of the major problems is the continuous encroachment of residential and commercial developments into agricultural zones. Farmlands that previously supported food production and rural livelihoods are being subdivided and sold for housing development. This has led to a significant reduction in available agricultural land and has disrupted traditional farming systems.

Another key issue is the absence of effective land-use control and weak enforcement of development regulations. Many urban developments occur without proper planning approval, resulting in fragmented and uncoordinated expansion patterns. This has accelerated land conversion processes and contributed to urban sprawl.

Furthermore, the loss of agricultural land in Suleja has serious implications for food security. As farmland decreases, local food production is reduced, increasing reliance on imported food supplies from other regions. This also affects the economic stability of rural households that depend on agriculture for income.

Environmental consequences are also evident. The conversion of vegetated and agricultural land into built-up areas has led to increased surface runoff, reduced infiltration, and higher vulnerability to flooding. It has also contributed to loss of biodiversity and degradation of the natural ecosystem.

Although several studies have examined urban growth in Suleja, most have focused on general land use change or urban expansion patterns rather than specifically assessing the impact of urban sprawl on agricultural land conversion. This creates a gap in understanding the extent to which agricultural land is being lost and the implications of this trend.

Therefore, the problem of this study lies in the inadequate empirical assessment of how urban sprawl is driving agricultural land conversion in Suleja Local Government Area and the resulting implications for sustainable land use and food security.

1.3 Aim and Objectives of the Study

Aim of the Study

The aim of this study is to assess the impact of urban sprawl on agricultural land conversion in Suleja Local Government Area, Niger State, Nigeria.

Specific Objectives

The study seeks to:

1. examine the pattern and extent of urban sprawl in Suleja LGA;
2. identify the extent of agricultural land conversion due to urban expansion;
3. determine the factors driving urban sprawl in the study area;
4. assess the implications of agricultural land loss on sustainable development.

1.4 Research Questions

1. What is the pattern and extent of urban sprawl in Suleja LGA?
2. To what extent has agricultural land been converted to urban uses?
3. What factors are driving urban sprawl in the study area?
4. What are the implications of agricultural land conversion for sustainable development in Suleja?

1.5 Research Hypothesis

H₀: There is no significant relationship between urban sprawl and agricultural land conversion in Suleja Local Government Area.
H₁: There is a significant relationship between urban sprawl and agricultural land conversion in Suleja Local Government Area.

1.6 Significance of the Study

This study is significant in several ways. It will provide empirical evidence on how urban sprawl contributes to agricultural land conversion in Suleja, thereby enriching existing literature on urban geography and land-use change in Nigeria.

The findings will assist urban planners and policymakers in developing effective land-use control strategies to manage urban expansion and protect agricultural land. It will also provide useful information for government agencies in formulating sustainable urban development policies.

Furthermore, the study will benefit researchers and students by serving as a reference material for further studies on urban sprawl, land-use change, and environmental sustainability in rapidly growing urban areas.

1.7 Scope of the Study

This study is geographically limited to Suleja Local Government Area in Niger State, Nigeria. It focuses specifically on the impact of urban sprawl on agricultural land conversion. The study does not cover other forms of land-use change outside agricultural conversion or other LGAs in Niger State.

1.8 Definition of Key Terms

• Urban Sprawl: The uncontrolled expansion of urban areas into surrounding rural or agricultural land.
• Agricultural Land Conversion: The transformation of farmland into non-agricultural uses such as residential or commercial development.
• Land Use Change: The alteration of land from one function or purpose to another.
• Sustainable Development: Development that meets present needs without compromising the ability of future generations to meet their own needs.

Project – Impact of Urban Sprawl on Agricultural Land Conversion in Suleja Local Government Area, Niger State, Nigeria