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King Abdulaziz University (2009)

Physical Characteristics of Terraces Agricultural Soils in Al-Bahah District

ALGAAMDI, EBTEESAM SALIM

Titre : Physical Characteristics of Terraces Agricultural Soils in Al-Bahah District.

Auteur : ALGAAMDI, EBTEESAM SALIM

Université de soutenance : King Abdulaziz University

Grade : Master 2009

Résumé
Little attention has been paid into agricultural terrace soil properties. For this reason the current research aimed to study the physical characteristics of such soils as an initial step in obtaining a broader understanding of their properties. This is important because these the sites terraces are closely associated with human settlement in this mountain zone. During the course of the research several important findings were made may be the important finding were made may be that the highest percentage of soil were silts (loess), sand and clay are different from valley to valley. This may be result of local geology. Rocks in the Ghazeer valley are schist and those in the Bani Saeed valley are very weathered granites relating to former Tertiary climates and plate movements of the Peninsula when it was in equator and terraces silts are probably originally blown in from Africa and the Rub’ al Khali and on slopes have been transferred by flood water into terraces and it called secondary deposits

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Page publiée le 4 décembre 2014, mise à jour le 4 décembre 2017