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الموارد المائية في حوض وادي سردود : دراسة في جغرافية الموارد المائية == Aquatic Resources In Wadi Surdud Basin Astudy In The Geoqraphy Of Aquatic Resources
Author name:
ماجد احمد عبد الله الورد
Supervisor name:
ماجد السيد ولي محمد العلي
General topic:
Geography
Specific topic:
Geography
Degree:
Master
University:
University Of Basrah - Faculty Of Education - Department Of Geography
Language:
Arabic
University location:
Basrah
First pages:
10T1476 - p.pdf
Abstract:
The researcher arrived at the following conclusions concerning water resources in the basin of wadi (valley) surdud : 1. It is situated to the west of the capital San' a between lont,>titudes of 42.30 - 44.00 to the east and latitudes 15.00 - 15.40 to the north. It is an arid and semi - arid area.2. The area of the basin of the wadi is 2846.7 Km2. Topographically, this wadi is divided in to two sections. The first section is the coastal plain, which is characterized by being dilated with some inclination towards the Red Sea. The second section is the eastern heights of the basin of the wadi, which contain mountains of very steep slopes. These mountains reach height of more than 3000 meters.3. The climate in the wadi is not equable for example, temperature is high (43.3 C0 ) in the coastal plain area in July where as it decreases on the peaks of the mountain slopes to reach 22.7C0 in the same time of the year.4. The soil of the wadi, along the whole water path, is almost alluvial thick because of the flood deposits where as it is a mixture in the southern and northern parts of the wadi. 5. Vegetation cover is poor in the coastal plain of the wadi because of the dry climatic conditions and grass is dominating.6. The basin of the wadi is nearly triangle and its shape coefficient is 0.26.7. Relief rate in the wadi is 35.2 111/km.8. River grading ranks in the wadi arc six with 2449 downstream.9. The meandering rate in the wadi is l.43. This means that the wadi is zigzagged.10. Drainage types in the wadi are the tributary and the perpendicular.11. Underground water is almost every where in the basin of the wadi and it is easy to take out especially in the plain area.12.Underground water in the wadi is supplied by filtration from the bottom of the wadi. From running rain water and from irrigation surplus. 13.The depth where underground water is found in the wadi ranger from l 0 to 30 meters and it increases to more than SO meters in the area of the alluvial soil.14.The total rate ?fwater taken out from artesian and manually - digged wells is 133 x 106 m3/r.15.Water in the basin of wadi surdud is appropriate for different uses in terms of UN and WHO criteria.16.Number of population of the basin of the wadi is about 380.000. 17. Water needs for domestic purposes is 1S.200.00 liter /day.18. The total area of the land irrigated by water of wadi surdud is 33.000 hectares and the total water consumption is 1295.000 m3 /r. 19.The main crops in the wadi are cereals, vegetable and fruit.20.Livestock in the wadi is 250.000 in number and it consumes water of 760.500 m3/r.21. Water balance in the wadi is achieved by summation of the available surface and underground water and it is estimated to be 202 million m3/r.Total water need is 145.460.000 m3/r.
