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Climate changes and water scarcity are forcing arid and semi-arid countries to search for non-conventional alternatives of renewable water resources such as Agriculture Drainage Water (ADW) and Rainwater Harvesting (RWH).Bio-saline Agriculture (that defined as the production and growth of plants irrigated by saline waterin water scarce location) is introduced to achieve food security.The phenomenon of dust storms is commonly seen in arid zones that is affected by climate changes.Protection of these areas requires the establishment of windbreaks and sustainable green belts to reduce wind speed and soil erosion.This research aims to study the area that can be planted by orchards of palm and olives using ADW and RWH around Main Outflow Drain (MOD) in Iraq.Two alternatives are proposed according to the possibility of using the rainwater-harvesting technique in order to expand the irrigated areas; to reduce the quantities of saline water in irrigation and reclamations the soil from the excess quantities of salinity.It was found using only 30% of MOD saline water achieves the cultivation of a net green belt width of palm and olive of 9.74 km on both sides of MOD of 526 km length from north of Baghdad to the Basra city.The accumulated salinity at steady state condition of using ADW was estimated according to WATSUIT model is within the range of orchards and high tolerant winter crops like barley.This research demonstrates a viable strategy for mitigating soil erosion and dust storms in arid regions, offering a model for sustainable agricultural practices in the face of climate change.
Abdulhameed et al. (Thu,) studied this question.