Abstract:
This research studying the impact of erosion and sedimentation processes on the Nile
River, positioning influence and the erosion of its banks and its impact on Nile
agricultural land in the area at Moqren Elnilein and extends up to 30 kilometers north of
Khartoum. The study depends on the using Landsat imagery acquired on the years
1985, 1995.2003, 2009 & 2015. In addition to field observation. Remote Sensing and
GIS analysis were used in this study to investigate river meandering and the associated
processes of river bank and island, deposition of sediments and formation of new island.
The analysis of Landsat imagery revealed the migration of river course with time and
space. Some islands disappeared completely in the study area whereas new islands
appeared in other places, In addition to the migration of some of the islands with the
time and space. The continuous processes of erosion and sedimentation lead to change
the Mirin continuously.
The study also had shown that the current conditions of the river from the Immigration
and lateral erosion backed by human interventions had led to environmental and social
problems, foremost of which is the decrease in agricultural lands bordering the river
banks and islands within the river which in turn reduces the agricultural production, lack
of arable land, border disputes and land holdings in some areas.
This research also aims to study the river basin in the selected area and assess the effects
of erosion and deposition on agricultural land and using geographic information systems
in the production of multi-layered maps program and displayed spatially and conducts a
thorough analysis to support decision makers to curb these problems as much as
possible.
