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A. Shalaby and H. S. Khedr
classified into Five main classes; built-up land, agricultural land, sand dunes, desert
and water bodies.
A. Barren land
The study area is considered as desert area, so the barren land class in the study
area is represented by the desert.
B. Agricultural land
In Egypt, the main Land Use/Land Cover (LULC) is agriculture which is an
important source of the Egyptian economy. Agricultural land in the study area is
represented by cultivated land (already under cultivation), after supervised classification, visual interpretation using on screen digitizing were applied to improve
the classification results and to identify fallow land. Reclaimed areas (barren land
prepared to be cultivated for first time) were identified through visual interpretation,
with the aid of Google earth images, since it have specific pattern on satellite images.
C. Built-up land
Built-up land class in the study area is represented by the residential areas or
services areas like sewage treatment stations.
D. Sand dunes
Sand dunes are distributed in the whole study area, occupying 13,431 ha.
E. Water bodies
Areas covered by water i.e. drainage bonds
4.2 Land Use/Land Cover Change Detection
The spatial-temporal changes in land use classes were detected over period of 30 years
from 1988 to 2018 in Dakhla Oasis.
4.2.1 LULC During Years of the Study
In 1988, the main five LULC classes areas were 19,496 ha., 533 ha., 15505 ha.
and 127 ha. for agricultural land, built-up land, sand dunes, and water bodies land,
respectively and the rest of area was 397,682 ha for barren land. LULC classes could
be ordered as follow; barren land (91.8%) > agricultural land (4.5%) > sand dunes
(3.6%) > built-up land (0.1%) considering the areas in 1988, as shown in Map 4.
In 2003, areas of LULC classes were 33,204 ha., 1,869 ha., 15,955 ha. and 5548.0
Fed. for agricultural land, built-up and sand dunes, respectively. Map 5 shows that, in
2003, LULC classes could be ordered as follow; barren land (88.1%) > agricultural
land (7.7%) > sand dunes (3.7%) > built-up (0.4%) considering the areas in 2003.
A. Shalaby and H. S. Khedr
classified into Five main classes; built-up land, agricultural land, sand dunes, desert
and water bodies.
A. Barren land
The study area is considered as desert area, so the barren land class in the study
area is represented by the desert.
B. Agricultural land
In Egypt, the main Land Use/Land Cover (LULC) is agriculture which is an
important source of the Egyptian economy. Agricultural land in the study area is
represented by cultivated land (already under cultivation), after supervised classification, visual interpretation using on screen digitizing were applied to improve
the classification results and to identify fallow land. Reclaimed areas (barren land
prepared to be cultivated for first time) were identified through visual interpretation,
with the aid of Google earth images, since it have specific pattern on satellite images.
C. Built-up land
Built-up land class in the study area is represented by the residential areas or
services areas like sewage treatment stations.
D. Sand dunes
Sand dunes are distributed in the whole study area, occupying 13,431 ha.
E. Water bodies
Areas covered by water i.e. drainage bonds
4.2 Land Use/Land Cover Change Detection
The spatial-temporal changes in land use classes were detected over period of 30 years
from 1988 to 2018 in Dakhla Oasis.
4.2.1 LULC During Years of the Study
In 1988, the main five LULC classes areas were 19,496 ha., 533 ha., 15505 ha.
and 127 ha. for agricultural land, built-up land, sand dunes, and water bodies land,
respectively and the rest of area was 397,682 ha for barren land. LULC classes could
be ordered as follow; barren land (91.8%) > agricultural land (4.5%) > sand dunes
(3.6%) > built-up land (0.1%) considering the areas in 1988, as shown in Map 4.
In 2003, areas of LULC classes were 33,204 ha., 1,869 ha., 15,955 ha. and 5548.0
Fed. for agricultural land, built-up and sand dunes, respectively. Map 5 shows that, in
2003, LULC classes could be ordered as follow; barren land (88.1%) > agricultural
land (7.7%) > sand dunes (3.7%) > built-up (0.4%) considering the areas in 2003.