Assessment Of The Socio-economic Impact Of Agulu-nanka Gully Erosion, Anambra State, Southeastern Nigeria
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Assessment Of The Socio-economic Impact Of Agulu-nanka Gully Erosion, Anambra State, Southeastern Nigeria
Soil erosion is the systematic removal of soil, including plant nutrients, from the land surface using various denudation agents. This research focusses on the social and economic effects of gulling in the area. The social repercussions include the loss of ancestral homes, school buildings, church buildings, and water supply sources.
The economic implications studied include the loss of cropland, planted crops, shop/business premises, and economic trees. The study’s goal is to determine the percentage of residents in each locality who have suffered social and economic consequences as a result of gully occurrences.
It also intends to investigate the relationship between the detrimental social and economic repercussions experienced by affected persons in the study area’s diverse localities.
The locations researched are Isiakpuenu-Nanka, Engwu-Nanka, Ududo-Nanka, Madonna-Agulu, and Agulu – road cut regions. Data for the study were gathered from two major sources: primary and secondary sources.
The primary sources of data are direct observations from fieldwork and the use of questionnaires, while secondary sources include topographic maps and library materials.
Descriptive statistical approaches were used to summarise and describe the acquired data. Other characteristics such as expected frequencies and deviations from the actual were calculated using percentages, proportions, and the mean.
The X2 (Chi-Square) test was employed to determine the amount of agreement between analysis results. Pearson’s coefficient of correlation was utilised to investigate the relationship between the social and economic consequences of gully erosion in the area.
The findings show that the negative social and economic effects of Agulu-Nanka erosion on residents in erosion-affected areas differ significantly from the social and economic situation in unaffected areas, and there is no significant relationship between the social and economic effects of gully erosion in Agulu-Nanka areas.
The solution to gully erosion affects is to consider them as an integral part of the larger issue of environmental problem management. This will be accomplished with sufficient understanding about the environment.
Chapter one
INTRODUCTION
1.1 Background Of the Study
Erosion is the process by which soil erosion agents wear away, chew into, loosen, or transfer soil material from one location to another, ultimately depositing it (Egboka, 1991).
Wind, water, and physical disturbances all contribute to soil erosion, which includes the separation, transport, and deposition of weathered rocks. Soil erosion decreases land productivity, jeopardises agricultural sustainability, and worsens environmental quality due to pollutants adhering to sediments.
Soil erosion is caused and complicated by a number of factors, including natural phenomena such as neotectonics and paleotectonics, soil/rock features (pedology/geology), wind/water dynamics, and human phenomena such as population density, anthropogenic activities, and engineering effects (Egboka and Nwankwor, 1985).
The textural, coherence, and plasticity properties of soil are not taken into account when carrying out large or small-scale industrial or technical undertakings. Irrigation projects, significant transportation networks, minor and big dams, urbanisation,
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Deforestation, sand, and laterite mining are carried out notwithstanding the advice of environmental experts and/or professionals. Similarly, hungry land developers encroached on critical drainage zones, wetlands, and flood channels. As a result of these activities, sheet, rill, and gully erosion are known to develop gradually over time.
Throughout the world, man is a more powerful agent of environmental change than Nature. Soil erosion is now widespread in many areas of southeastern Nigeria (Egboka, 1991).
Increased knowledge of erosion’s effects on land, air, water quality, and global climate presents new difficulties for erosion researchers. In some cases, these consequences are so severe that they impair quality of life and economic well-being, and even jeopardise survival.
Chemical and physical deterioration of soil has a significant impact on agricultural output and housing development. In Nigeria, agriculture output is the primary source of revenue for the population.
Soil quality has a significant impact on the ability of rural farmers to attain food security. Soil erosion leads to unsustainable development of people’s living standards. Sustainable development refers to positive socioeconomic change that does not harm the ecological and social systems.
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Upon which communities and societal systems rely. Land provides services to humans and other life forms, as well as raw materials for the manufacturing process.
Land provides waste absorption services in addition to other ecosystem functions. Land provides resources for enjoyment, health, cultural, and ecological cycles and activities.
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