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Causes And Effect Of Erosion
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1.2 STATEMENT OF THE PROBLEM
Erosion
is considered as one of major land degradation process in Ovia North
East Local Government Area of Edo State which is also the main source of
environmental deterioration. It creates negative impacts on
agricultural production, infrastructure and water quality (Vrieling,
2006). Erosion is also the natural phenomenon (geological process)
which is caused by natural force; it can be more accelerated when the
process is influenced by human activities (human-induced erosion). It is
considered that the accelerated erosion is a serious global problem and
widely recognized (de Graaf, 2006). With the accelerated erosion, it
can affect agronomic/biomass productivity (on-site effect) and flooding,
sedimentation of reservoirs, siltation of agriculture field and
decrease of water quality downstream (off-site effects). The two
important agents of erosion are wind and water (Hudson, 2006).
The
study area is located in Ovia North East Local Government Area, Edo
State. This area is an intensive agricultural areas in Edo State for
years now. The conversion of the tropical rain forest to agricultural
system has been taking place. With the increasing population, the
cultivation in the mountainous area has been taking place. The primary
forest is replaced by the maize, plantain, paw-paw, yams, and other crop
types. The removal of natural forest and vegetation cover in steep
slope and followed by improper land use practices have led to the
various land degradation problems in the area. Each year during the
rainy season a lot of topsoil is eroded and the agricultural lands are
affected. On the other hand; the eroded soil and sediments which are
transported by the surface runoff affect the downstream cultivation
land.
1.3 PURPOSE OF THE STUDY
The purpose of this study is to
have clear understanding of the causes and effect of erosion in Ovia
North East Local Government Area, Edo State.
The specific objectives are:
1) To identify the practices that accelerates erosion in the study area.
2)
To discuss the perception of the people in relations to the effect of
erosion on the agricultural potentials and performance of the
communities in Ovia North East.
1.4 RESEARCH QUESTION
(i) Do agricultural activities lead to erosion?
(ii) Does deforestation lead to erosion?
(iii) Does improper soil management cause erosion?
(iv) Is urbanization a major effect on erosion processes?
(v) Does climate change contribute to erosion problem?
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ABSRACT - [ Total Page(s): 1 ]This research work was designed to examine the causes and effect of soil erosion in Ovia North East Local Government Area of Edo State. Five (5) research questions were formulated and questionnaires were administered to one hundred (100) respondents in order to gather data for the research. Results showed that agricultural activities lead to soil erosion, improper soil management cause erosion, deforestation lead to erosion etc. Recommendations were made and it include that;Sustainable soil mana ... Continue reading---
