Soil Conditions of Dakhla Oasis, Western Desert, Egypt
137
classified to Typic Torri psamments, Typic Torriorthents, Vertic Torriorthents and
Sodic Torriorthents.
7 Land Evaluation of Dakhla Oasis
7.1 Land Capability
Land capability express of the future potential of soil used within specific management practices. The goal of knowing the soil capability potential is to analyze and
examine all relevant data to identify a combination of agricultural measures for
the appropriate use and management of land, which ensures the conservation of
resources without causing soil degradation. Yousif (2014) have been evaluated soil
of Dakhla Oasis using Storie index soil suitable areas for agricultural productivity.
The author reported that, Dakhla area is classified into tree grades. Furthermore more
than 117 km
2 are good capable and about 379.18 km
2 are moderately capable for
agricultural production as shown in Fig. 11.
7.2 Land Suitability
Yousif (2014) applied Land Use Suitability Evaluation Tool (LUSET) by Yen et al.
(2006) to evaluate the soil of Dakhla for crop suitability. This method depends on
land qualities which are derived from land characteristics such as soil salinity dS/m1, drainage, carbonate content (%), slope, soil texture, organic matter %, etc. The
current study used Land Use Suitability Evaluation. The author classified the crops
into three groups; field, vegetable and fruit according to the requirements of the most
commonly grown crops provided by Sys Ir et al. (1993), Fig. 12 showed the suitability
crops for Dakhlas oasis. Therefore, the most maintainable land utilize was distinctive in each condition as indicated by the soil characteristics. In another study Fadl
and Abuzaid (2017) have evaluated soil suitability for crops of Dakhla Oasis using
Almagra model, which considered one of the most prevalent models in the world.
This system is an automatized application of soil suitability model is based on a qualitative assessment of biophysical factors, soil variables and surrounding conditions
affecting crop growth within MicroLEIS (De la Rosa et al. 1992; Abd-Elmabodet al.
2019). However, the authors applied this method to evaluate agricultural crop suitability in Dakhla Oasis. They selected, twelve crops as fellows; wheat, potato, maize,
sunflower, cotton, soybean, watermelon, sugar beet, alfalfa, peach, citrus, and olive
were selected to be evaluated. The authors showed that soils suitability for crops
Dakhla are varied from place to another and the area has the following suitability
high suitable (S2), moderately suitable (S3) and marginally suitable (S4) moderately
suitable (S3), marginally suitable (S4) and not suitable (S5).
137
classified to Typic Torri psamments, Typic Torriorthents, Vertic Torriorthents and
Sodic Torriorthents.
7 Land Evaluation of Dakhla Oasis
7.1 Land Capability
Land capability express of the future potential of soil used within specific management practices. The goal of knowing the soil capability potential is to analyze and
examine all relevant data to identify a combination of agricultural measures for
the appropriate use and management of land, which ensures the conservation of
resources without causing soil degradation. Yousif (2014) have been evaluated soil
of Dakhla Oasis using Storie index soil suitable areas for agricultural productivity.
The author reported that, Dakhla area is classified into tree grades. Furthermore more
than 117 km
2 are good capable and about 379.18 km
2 are moderately capable for
agricultural production as shown in Fig. 11.
7.2 Land Suitability
Yousif (2014) applied Land Use Suitability Evaluation Tool (LUSET) by Yen et al.
(2006) to evaluate the soil of Dakhla for crop suitability. This method depends on
land qualities which are derived from land characteristics such as soil salinity dS/m1, drainage, carbonate content (%), slope, soil texture, organic matter %, etc. The
current study used Land Use Suitability Evaluation. The author classified the crops
into three groups; field, vegetable and fruit according to the requirements of the most
commonly grown crops provided by Sys Ir et al. (1993), Fig. 12 showed the suitability
crops for Dakhlas oasis. Therefore, the most maintainable land utilize was distinctive in each condition as indicated by the soil characteristics. In another study Fadl
and Abuzaid (2017) have evaluated soil suitability for crops of Dakhla Oasis using
Almagra model, which considered one of the most prevalent models in the world.
This system is an automatized application of soil suitability model is based on a qualitative assessment of biophysical factors, soil variables and surrounding conditions
affecting crop growth within MicroLEIS (De la Rosa et al. 1992; Abd-Elmabodet al.
2019). However, the authors applied this method to evaluate agricultural crop suitability in Dakhla Oasis. They selected, twelve crops as fellows; wheat, potato, maize,
sunflower, cotton, soybean, watermelon, sugar beet, alfalfa, peach, citrus, and olive
were selected to be evaluated. The authors showed that soils suitability for crops
Dakhla are varied from place to another and the area has the following suitability
high suitable (S2), moderately suitable (S3) and marginally suitable (S4) moderately
suitable (S3), marginally suitable (S4) and not suitable (S5).