MAPPING OF GULLY AREAS USING GIS AND REMOTE SENSING IN PART OF MUBI SOUTH/MUBI NORTH LOCAL GOVERNMENT AREA

Abstract

Gully erosion is one of the most serious environmental problems in the world today, it threatens, the natural
environment. This study used Geographic Information System (GIS) and Remote Sensing to study Gully erosion based on
band ratio formula method. Quick Bird satellite image of 2015 was used as base map to delineate the boundary of the
study area. LandSat TM of 2010 was used to generate gully erosion map of the study area, 100m steel tape was used to
measure the width, depth and length of the gullies. Photographs were taken using digital camera. Database was created
and the photographs were link with table which enable simple query and analysis of the gullies in pictorial forms to be
done. The band ratio formula was carried out using ArcGis 10.0 software. The research findings indicated high eroded
gullies are of high intensity and are bare lands whereas less eroded gullies are of less intensity and are low slope areas.
The study recommends the use of GIS and Remote Sensing for efficient and effective management of gully erosion.