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العنوان
LAND USE / LAND COVER CHANGE DETECTION AND LAND DEGRADATION ASSESSMENT IN THE WESTERN NILE DELTA USING REMOTE SENSING DATA =
المؤلف
Flous, Gamal Mostafa Ahmad.
هيئة الاعداد
باحث / Gamal Mostafa Ahmad Flous
مشرف / Fawzy Hasan Abdel-Kader
مشرف / Ahmad Saeid Suliman
مشرف / Osama Rady Abd El-Kawy
الموضوع
Soil.
تاريخ النشر
2021.
عدد الصفحات
127 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
العلوم الزراعية والبيولوجية
تاريخ الإجازة
3/12/2021
مكان الإجازة
اتحاد مكتبات الجامعات المصرية - Soil
الفهرس
Only 14 pages are availabe for public view

from 140

from 140

Abstract

Wadi El-Natrun region, in the western Nile Delta and north of the Western Desert, represents a promising area for the agricultural extension.
Detection of LULC changes in Wadi El-Natrun region for a period of 10 years showed remarkable development in desert land reclamation, which reached about one-fifth of the total study area. The study area also witnessed an increase in other LULC types during the last five
years, such as the increase in the natural vegetation and Wadis extent by 4% and 2.9%, respectively. These remarkable changes were due to the heavy rainfall occurred in the region in
2015.
A selected study area (subarea A) in Wadi El-Natrun district was dedicated for salinity mapping using remote sensing, as well as for land suitability assessment.
Most of the selected area “A” (53%) was considered as a strongly saline soil, while the remaining area was moderately to slightly saline. The remote sensing salinity index was developed using the linear regression between the surface measured salinity values and the
NDVI vegetation index, with overall Kappa of 0.64.
Based on the field investigations and soil samples analysis, the area was divided into 11 soil mapping units. According to the American System of Soil Taxonomy, the soils of the study area
belonged to two soil suborders: Aridisols and Entisols.
Land suitability assessment, using ALES-arid, indicated that six crops are considered as the most suitable crops to be grown in the study area. The (S2+S3) class for each crop is represented by
more than 50% of the study area. This means that, more than half of the study area is moderately (S2) to marginally (S3) suitable for all the crops, where (S2+S3) classes presents about 60%,
58%, 58%, 53%, 52% and 51% of the study area for cotton, sunflower, cabbage, barley, sorghum, and watermelon, respectively. Category A involves
The sustainable land management SLM depends mainly on soil and water conservation measures for agriculture and other purposes. Some actions should be considered in the study area such as
flash flood mitigation measure. Appropriate dams and dikes at the identified flood risk potential
sites should be implemented. In addition, these measures will support the recharging of the shallow groundwater storage and aquifers and watershed characteristic and potentiality.
Highly susceptible areas for soil erosion need spatial attentions for appropriate soil and water
conservation measures that addressing different land degradation types such as control of dispersed runoff, increase of infiltration, increase of soil fertility, increase of organic matter,
increased water stored in the soil, improved soil structure, improvement of ground cover, andcontrol of concentrated runoff.