LAND DEGRADATION EXTENSION AND ITS CAUSATIVE FACTORS IN WEST NUBARIA REGION, EGYPT | ||||
| Journal of Biological Chemistry and Environmental Sciences | ||||
| Volume 15, Issue 2, June 2025, Page 1-24 PDF (1.19 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/bces.2025.430977 | ||||
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| Abstract | ||||
| The study area was situated in West Nubaria Town covering 15913.63 ha. Remote sensing data acquired by satellite Sentinel-2 in 2024 were processed for delineating the physiographic features. These features were developed within a big playa without drainage outlet including: a) Dissected sedimentary rock land at the higher elevations was 3405.38 ha. b) Pediplain of shallow residuum covering 521.04 ha c) Pediplain of well drained cultivated soils covering 1998.58. d) Pediplain of moderately well drained cultivated soils was 2737.91ha. e) Pediplain of very poorly drained waterlogged soils was 1755.51 ha. f) Bajada of somewhat excessively well drained soils covering 1562.46 ha. h) Aeolian plain of excessively drained soils covering 2329.63 ha. i) Intersected Aaeolian sheets of waterlogged very poorly drained soils covering 208.05 ha. j) Submerged land was 1237.06 ha. Other land features are buildings either still in use to be 156.80 ha or abandoned waterlogged within the lake on 1.21 ha. Degradation process occurred as a result of using surface irrigation that is draining over impermeable sub strata to intrude the depressed areas. Besides, drainage water moves vertically and horizontally to the lower levels. Furthermore, seasonal drainage of rainwater falls on the higher area as well as the sewage effect. Standing water salinity in the lake ranged from 27.95 to 31.5 dSm-1 . So, it is useful to correct the agricultural practice of irrigation system and drainage network considering the topographic features. The suitability status is reflecting land degradation levels within the currently and formerly managed land for agriculture. | ||||
| Keywords | ||||
| Land degradation; Physiographic features; Remote sensing | ||||
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