Application of Geoinformatics In Assessing Landuse Changes Resulting From Deforestation On Selected Variables In Parts of Kogi East, Nigeria.

  • Ocholi, I. U. Department of Geography and Environmental Studies, Kogi State University, Anyigba.
  • Idoko, O. Department of Geography and Environmental Studies, Kogi State University, Anyigba.

Abstract


Decline in forest structure and quality prompted the study, essentially to examine the spatial effects of
deforestation on the edaphic components of the environment of Kogi East, Kogi State, Nigeria. It
focused specifically on soil and vegetation, while it assessed the implication of the destructive
interference by humans with the natural ecosystem based on the results of preliminary investigation.
Results showed thatt in many parts of the study area, substantial hectares of the forest landscape had
been primarily logged and abandoned. Over a 100,000 hectares of vegetation cover was lost
annually, most of which were deliberately removed to make way for agriculture, mineral exploitation,
urbanization and expansion of settlements, among others. Reforestation efforts reportedly
replenished only 25,000 hectares. In order to investigate this trend, Classified Satellite Imageries of
Kogi state covering 1990-2010 were acquired to assess land use information. The process involves
land use mapping and the detection of changes using remote sensing and GIS techniques. Additional
land use information were acquired through field observation and theoretical survey. When
categorized and analyzed, the four main land use components (soil, vegetation, water and the built
environment) covered in this study demonstrated significant effects relationship with deforestation.
Implicatively, the results of this analysis shows that there had been significant increases in the effects
of these land uses on the forest landscape thus resulting in forest depletion, soil degradation and
observed destruction of the ecosystem. It was thus concluded that land use practices in the study area
must be carried out within the limits of forestry standard for a sustainable forest management.

References

Abdulkadir, A. (2007): An Appraisal of the

people’s Perception of Environmental

Degradation Issues in Minna, Niger State,

Nigeria; The Abuja Journal of Geography

and Development; Vol. 1, No. 2, pp 104-

Abula, M. and Awoyemi, T.T. (2010): Forest

Dependency in a Rural Economy as a

Strategy for Poverty Reduction in Kogi

State; Confluence Journal of

Environmental Studies, Vol. 5, pp1&2.

Adedayo, A. G; Sale, F.A. and Kekeh, O.

(2012): Household Wood Energy

Utilization Patterns and its Impact on

Deforestation in Akoko South West LGA,

Ondo State, Nigeria; Forests and Forests

Products Journal Vol. 1. pp 51-57.

Adeoye, N. O.(2006): Temporal Analysis of

Land use /Land cover Change in Ijesa-

Ekiti.

Region of South Western Nigeria; Journal of

Geography and Planning Sciences, Vol. 1,

No. 2, pp 33.

Aiyelari, E.A. and Oshunsanya, S.O.(2008):

Preliminary Study of Soil Erosion in a

Valley Bottom in Ibadan under some

Tillage Practices; Global Journal of

Agricultural Sciences, Vol. 7. No. 2, pp

-222.

ANON, (2011): The New Encyclopedia

Britannica; Encyclopedia Britannica Inc;

U.S.A.; Vol. 16, pp 599-620.

Asthana, D.K. and Asthana, M. (2005):

Environment: Problems and Solutions; S.

Chand and Co. Ltd, Ran Nagar, Naw

Delhi.

Ati, F.O; Danjuma, A. and Mohammed, O.S.

(2008): The Application of

Geoinformatics in Assessing Land use

Changes in Kaduna South, Kaduna,

Nigeria; The Zaria Geographer; Vol. 17,

No. 1, pp 45.

Banyuy, P.N.(2006): The Environmental

Impact of the Chad -Cameroon Pipeline

within the Ocean Division in the Republic

of Cameroon; Unpublished M.Sc Thesis,

Department of Geography, University of

Nigeria, Nsukka.

Essoka, P.A. Essoka, A.N., and Miginyawa,

A.S. (2010 :) Assessment of soil

properties under holder farming practices

for food Security and sustainable

Enviromental in a Sudan Savanna Region;

in Ogidiolu A; Musa, S.D. and

Ifeatimehin. O.O; Contemporary issues in

Infrastructural Development and

Management Nigeria; Being a conference

proceedings Published by the Department

of Geography and Planning, Kogi State

University, Anyigba, Nigeria; pp 358-359.

FAO/UNEP, (2006): Deforestation in Africa;

Microsoft Encyclopedia, Encarta Suite.

Hagan, K.I. (2006): Deforestation: an

International Analysis; Unpublished

Research Paper, Number X21, Unemoni,

XDEFOR.

Ifatimehin, O. O. and Ufuah, M.E. (2009):

Analysis of Urban Expansion and Loss of

Vegetation Cover in Lokoja Using GIS

Techniques; The Zaria Geographer, Vol.

, No. 1, pp 28-29.

Jimme, M.A; Kagu, A. and Yahya,

S.A.(2010): Environmental Resources

Management in Borno State, Nigeria:

Religious Perspectives; Journal of

Environmental Issues and Agriculture in

Developing Countries; Vol.2, No.1, pp 1-

Musa, S.D. and Ocholi, I.U. (2016): Analysis

of Effects Responses by the Chemical

Properties of Soil to Deforestation

Phenomena in Parts of Kogi East; Being a

Conference Paper presented at the

Association of Nigerian Geographers’

Conference holding at the University of

Lagos, April 10th – 15th, 2016.

National Bureau Of Statistics (2007): Social

Statistics in; N.B.S-Abuja, Nigeria.

Obi, C.O. Nnabude, P.C. and Onuoha, E.

(2005): Effects of Kitchen Wastes

Composts and Tillage on Soil Chemical

Properties; Nigerian Journal of

Agriculture, Vol. 3, pp 69-70.

Ocholi I.U; (2007): “Environmental Impact of

Deforestation in Dekina LGA of Kogi

State†Unpublished M Sc. Degree Project,

Department of Geography, University of

Nigeria, Nsukka.

Ocholi, I.U; (2010): Socio-economic

significance of Forests to the people of

Dekina LGA, Kogi State; PG Seminar

paper 1, Department of Geography and

Planning, Kogi State University, Anyigba.

Ocholi, I. U. (2015): Analysis of the Effects of

Deforestation on Edaphic Components in

Parts of Kogi East; Unpublished Ph.D.

Thesis, Department of Geography and

Environmental Studies, Kogi State

University, Anyigba, Nigeria.

Ogidiolu, A. (2003): “Field Methods in

Vegetation Studiesâ€; in Jimoh, H.I;

Techniques in Environmental Studies,

Nathadax Publishers, Ilorin, Nigeria.

Sills, E.O. and Pattanayak, S.K. (2010):

Tropical Forests; Wikipedia

Encyclopedia.

Ukwedeh, J.N. (2003): History of Igala

Kingdom; Ahmadu Bello University Press

Ltd; Zaria- Nigeria.

Published
2018-01-25