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               2.8. Efficient Irrigation Techniques

               More than 80% of the available water resources are used for irrigation in
            the  world  (Seddon  et  al.  2016).  However,  water  resources  are  being  over-
            consumed and more productivity is needed to feed the growing population.
            Infrastructure and management systems should be designed to deliver the
            right amount of water to the right place at the right time. Soil type, climate,
            crop type, availability, technology cost and producer experience and training
            are among the field factors that should be taken into account. (Balage et al.
            2015). Transmitting water to the site is another necessary element that should
            be taken into account, and it should be aimed to reduce transport losses
            through leakage and evaporation, and open channels should be replaced
            with closed pipes as much as possible (Baban et al. 2001).

               Table 11: Prepared by the author using the Benefits and Challenges of Efficient
                              Irrigation Techniques (FAO, 2018c) report.
                        BENEFITS                        CHALLENGES



             •   Reduced operating costs     •   Management can be intensive and
             •   Reduced water and waste        knowledge-based
                 use                         •   Some regions may need for materi-
             •   Reduced nutrient loss          als that are hard to access
             •   Increased water table height  •   Installation and maintenance of
             •   Available for automation       some systems may be difficult




               2.9. Integrated Plant Nutrient Management
               Integrated Plant Nutrient Management is an ecosystem-based adaptation
            activity which optimizes the condition of the soil, with regard to its physical,
            chemical, biological and hydrological properties, for the purpose of enhancing
            farm productivity, while minimizing land degradation. It aims to use plant
            nutrients more rationally by understanding the interaction between different
            nutrients (yield-oriented, field and soil specific), to use mineral and organic
            fertilizer mixtures, to provide nutrients to a crop system/rotation-based and
            on-site and off-site waste recycling system (FAO, 2018).











            152  Journal of Environment, Urbanization and Climate
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