Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Impact of shallow and saline water tables on the soil’s water and balance of Konya-Cumra district under irrigation

Konya-Çumra yöresinde yüzeysel ve tuzlu taban suyunun sulanan alanlardaki toprak-su ve tuz dengesi üzerine bir araştırma

Auteur : Akbuğa, Ramazan

Université de soutenance : Trakya University

Grade : Yüksek Lisans Tezi 2006

Résumé
Most of the irrigated areas are faced with waterlogging and salinity problem, whose irrigation schedules differ from a normal irrigation program. Capillary rise and subsequent salinity should be considered in these problematic areas. In this research, scheduling a new sustainable irrigation program was simulated for Konya-Cumra Irrigation District with shallow and saline water table conditions. The order of capillary losses from soils in magnitude from lager to the smaller were loamy, sandy and clayey soils. Critical water table depths in terms of salinisation risks due to capillary rise were 1.0, 2.5 and 3.0, respectively for the sandy, loamy and clayey textures. For the chosen crop pattern, cereal-cereal, a considerable amount of salt accumulation was simulated during a three-month fallow period. With new irrigation scheduling, taking the capillary rise into account, not only a sustainable scheduling program is suggested but also a 10 % irrigation water is saved.

Présentation

Version intégrale (0,24 Mb)