Daftar Isi:
  • Water is a primary aspect of life and its usage aims at fulfilling human needs, such as raw water, irrigation water, hydroelectric power plant, etc. Logung Reservoir is expected to utilize water potencies to fulfill water communal needs in Kudus Regency. Therefore, the regulation and planning are required to obtain the water utilization pattern of Logung Reservoir optimally. This study was conducted by simulating operations pattern from 2017 until 2041. The simulation is conducted with inflow discharge by 80 % of three alternative patterns of irrigation planting system. The calculation of inflow discharge used F.J. Mock method with 15 days period and Thomas Fiering method. The equation used was flow continuity which explained the correlation between inflow and outflow of reservoir change. The data analysis used was inflow discharge, evaporation, and reservoir needs. Mainly, the capacity of Logung Reservoir is 13.720.000 m3. Based on simulation results, the reservoir could be recognized by the capacity of raw water and irrigation water. The reliability value of raw water and irrigation waters were 1,884 m3/dt and 5,517 m3/dt respectively. Thus, the three alternative patterns of irrigation planting system of Logung Reservoir were 82 %, 80,33 %, and 100 %.