home | about us | journals | search | contact

 

Prime Journal of Physical Science

 Prime Journal of Physical Science | OPEN ACCESS | PEER REVIEW

  PJPS
  About PJPS
  Submit
  Call for articles
  Author's Guide
  Archive
  Editorial Team

 
 

Other viewing options

full text (PDF)

Search PubMed

Okpiliya FI

Effiong EB

Imoke Eni

 Iwara Eja

 

OTHER JOURNALS


Prime Research on Education

ISSN: 2251-1253


Prime Journal of Microbiology Research

ISSN: 2251-127X


See list

 

Previous Abstract

 

 

Prime Journal of Physical Science

(ISSN: 2315-5043)

Volume 1, Issue 4, pp. 45-52

Prime Journals  

 

 

Full Length Research

 

Mangrove forest ecosystem utilization and depletion: Implication for occupational changes in

Calabar South, Nigeria

 

1Okpiliya FI , 1Effiong EB, 1Imoke Eni and 2Iwara Eja

 

1Department of Geography and Environmental Science, University of Calabar, Calabar

2 Department of Urban and Regional planning, Cross River State University of Technology, Calabar.

 

Accepted 20th November 2012

 
Abstract

 

The aim of this study was to examine the various ways in which mangrove forest ecosystem is being utilized and depleted and the implications for occupational changes in the area. Five communities based on observation that are actively involved in the mangrove exploitation were sampled for the study. Using the Yaro Yamen (1980) formula, the sample size of 400 was determined. Based on this, 400 copies of questionnaires whose content bothers on utilization of mangrove, income generated and occupation of the sampled communities was developed and administered. In order to determine the mangrove ecosystem depletion rate, the change intensity index which has the form;  *100, (i=1,2,3---n) was used. A multi-temporal image data of the mangrove vegetation covering areas overtime was acquired and processed. This includes a Topo sheet derived from an aerial photo of 1970, land imagery 1970-2011 in a GIS environment (Arc GIS 9.3). The result of the analysis revealed that; Mangrove is extensively used as a source of fuelwood and for income generation in the study area owing to excessive exploitation of mangrove, the areal extent of mangrove has decreased over the years from 72.69km2 in 1991 to 37.82 km2 in 2011. As the result of depletion of mangrove ecosystem, the occupation of the people have been affected as many people in the study area are now disengage from fuelwood gathering, hunting, fishing and farming.

 

Key words: Mangrove, Ecosystem, Forest, Depletion, Occupation 

 


See Full Article [pdf]

___________________________________________________________________________________________________________

Privacy Policy | Terms of Use

Prime Journals 2012