Hédi Ben Ali

• Managing Director at Agricultural Investment Promotion Agency,Tunisia

The oases of the South of Kébili are subjected to serious problems related to climate change and water scarcity resulting from the rise in temperature and the decrease in rainfall. Thus, the region suffers from a significant shortage of irrigation water due to long periods of drought affecting this already fragile area, but also due to human behavi...

During 2005–2010 the annual water balance was calculated within Kalaat El Andalous irrigation district and recorded values ranged from −0.77 million m ³ (−257 m ³ ha ⁻¹ ) to +3.64 million m ³ (+1210 m ³ ha ⁻¹ ). Monthly analysis of the water balance revealed two distinct phases. Through the first phase (September–May), the water balance showed a hi...

This paper aimed to assess the reliability of a new approach that provides systematic irrigation management based on fixed water suction in the vadose zone. Trials were carried out in the experimental farm of IRA Gabès on subsurface drip irrigated (SDI) tomato plot. The SDI system was designed so that the soil water content is to be maintained with...

Subsurface drip irrigation (SDI) is one of the most promising irrigation systems. It is based on small and frequent water supplies. Because SDI emitters are buried, their discharges are dependent on the water status at the vicinity of the outlets. This paper was targeted to design the SDI laterals accounting for the soil water-retention characteris...