Effects of Deforestation on Natural Bio-Diversity in Delta North Region of Delta State

Abstract

The study examines the effects of deforestation on natural bio-diversity in Delta North Region of Delta State, with the aim of determining the extent of tree species loss. Vegetation physiognomy of tree height, tree diameter and tree species population were measured in forested and deforested areas. Two experimental sites namely are forested and deforested areas were used for the study. Eight (8) equidistant plots were marked out at 60m x 60m apart and subdivided into quadrants of 1m x 1m for data collection. Tree height was determined by abney level, tree diameter was ascertained by girthing tape and tree species population were enumerated and recorded. The result revealed that deforestation is responsible for loss of valuable tree species in Delta North region. The result of the t-test analysis showed t value of 7.162, indicating significant effects of deforestation on natural bio-diversity in Delta North region. The study therefore recommended enforcement of strict government legislation to improve the natural bio-diversity in Delta North region of Delta State, Nigeria.

Key words: Deforestation, Tree, Loss, Natural bio-diversity, Delta North Region