Remote sensing, and (GIS) approach, for morphometric assessment and sub‑watershed prioritization according to soil erosion and groundwater potential in an endorheic semi‑arid area of Algeria
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Date
2023-06-14
Authors
Dali, Naouel
Ziouch,Omar Ramzi
Tarek,Daifallah
Berkani,Cherifa
Hassad,Sara
Journal Title
Journal ISSN
Volume Title
Publisher
Arabian Journal of Geosciences
Abstract
The application of remote sensing (RS), and geographical information system (GIS), has emerged as one of the most useful
methods
for
the
assessment of drainage
assessment and sub-watershed
prioritization
for
soil erosion
and groundwater
potential
of
watersheds.
The
present
study
is
focused
on
morphometric
characterization
and
prioritization
of
Constantine’s
highland
catchment,
an endorheic
semi-arid
basin situated in the
east
of Algeria.
It is subdivided into
seven
sub-catchments.
Using
digital
elevation
model (DEM) and Arc
GIS tools
showed
that
all of the
sub-catchments
except
the
Gareat
El Tarf
sub-watershed
(07–07) had a good permeability,
high iniltration,
and high groundwater
potential,
as the
geological
structure
controls
the
drainage.
Yet,
drainage
density varies
from
0.28 km/km
2
for sub-watershed of Chott Beida (07–01) to 0.41 km/
km
2
for the Gareat El Tarf (07–07) sub-watershed. After prioritization of the sub-watershed for soils and groundwater
potential, we conclude that a large part of the sub-catchments in the Constantine’s highlands showed high erosive levels of
soil and a low groundwater potential.