Morphometric and Morphological Analysis of Gullies in Lafia LGA, Nasarawa State, Nigeria

Abstract

This study assessed morphometric of gullies in Nasarawa State. Soil erosion is among the most endemic environmental problems of modern times. Both primary and secondary sources of data were used for this study. As ample of 36 gully sites were carried out in three Local Government Areas representing the study area for this research work. Information on gullies morphometric, morphology, soil particles size and the coordinate of each identified gullies site were taken from the field. Instruments such as hand auger, global position system. (GPS), photograph, Abeny level, linen tape, ranging poles, pegs and measuring tape and field observation methods were also adopted. The results generated from the field were subjected to statistical and laboratory analysis. The results of the findings revealed that 44.4% of the gullies in the study area are discontinuous gullies, 55.6% were continuous gullies, while gullies in the study are at their 5% and above development. 58.3% of the sampled gullies were at a stable state of development, while 41.7% of the gullies were at an unstable state of development. It was also revealed that 38.9% of the sampled gullies in the study area were long-narrow gullies, while 22.2% were linear shaped gullies.