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Landslide variation with
morphometric factors
using the GIS techniques:
The case of Shaqlawa
Forest

This study deals with the application of geographical information system
(GIS) datasets and methods to assess the landslide susceptibility in Wadi
Hujran. The area has a rocky terrain and belongs to the Shaqlawa district
of the Kurdistan Region of Iraq. The region is placed towards the
Northeast side of Erbil city. The region covers an area of 18.56 Km2
(1856.1 ha) and consists of rough broken and stones. The watershed area
is surrounded by North latitudes 36° 21' 53.514" to 36° 17' 49.7796" and
East longitudes 44° 17' 5.658" to 44° 20' 9.06". Three factors, namely the
morphometric, geological, and environmental, were used to prepare the
landslide susceptibility index. The study made use of AHP method and
prepared a landslide susceptibility map. Data related to geology,
topography, hydrology, rainfall, and land use were used to prepare the
map. Physical and statistical methods were used to validate the map. A
heuristic approach was incorporated to produce the final susceptibility
map. ArcGIS software was used to generate the landslide zones. A total
of five landslide zones were generated, which varied from very low
landslide zones (80.5) to very high landslide zone (84.5). The zones also
included low landslide zone (1262.2), moderate landslide zone (1505.9),
and high landslide zone (566.8), and the ratio of consistency in the
present study was 0.06 AHP less than 1, and all the five zones in the study
were compiled landslide zonation estimated.