Determining the reservoir volumes of some irrigation ponds in Konya province using netcad, comparing their project and actual volumes, and evaluating the current irrigation situation

This study was conducted to determine the differences between the current status and projected data of some irrigation ponds located in Konya province, and to evaluate their irrigation performance. Within the scope of the research, high-resolution aerial photographs and digital surface models were obtained using drone (UAV) technology for 10 irrigation ponds in Konya Province (İlmen Pond, Üzümlü Pond, Çakıllar Pond, Mehmetali Pond, Doğanhisar Yenice-3 Pond, Süleyman Yaylası Pond, Seydişehir Yenice Pond, Çatak Pond, Eldeş Pond, and Bulcuk Pond). These data were analyzed using NETCAD software to determine the actual reservoir volumes of the ponds. The obtained volume values were compared with the volumes predicted during the project phase, and changes over time were evaluated. Furthermore, the irrigation performance evaluation criteria "Total Water Supply Rate (TWSR)," "Irrigation Rate (IRR)," and "Irrigation Unit Area Production Value (IUAPV)" were determined. The research results show that, according to TWSR and IRR values, 7 out of the 10 ponds examined had values of 100% and above, while 3 (Doğanhisar Yenice-3 Pond, Süleyman Yaylası Pond, Çatak Pond) had values between 79.52% and 85.69%. It was determined that the measured volume of 2 out of 10 ponds was approximately 10% less than the project value, while the others had volumes equal to or greater than the project values. In addition, the current irrigation capacities of the ponds and the irrigation situation in the region were examined, and the impact of the available water quantity on agricultural production was evaluated. The findings provide important information regarding the effective management of irrigation ponds and the issues that should be considered in future new pond projects.