Water balance calculation capability of hydrological models

Currently, in the world, there are many different hydrological models built and developed to solve problems related cycle. Each model has its specific mathematical foundations describe physical processes nature. Therefore, each various characteristics: setting up model, input data requirements, calibration verification, output results. Water balance is still playing an important role effective management use of water resources for agriculture. Based on results parameter’s calculation, study basin can be calculated by user or separated module model. have advantages disadvantages. However, it impossible simulate completely accurately Still, simulation give us a view changing trend components balance. Model developers gradually completing shortcomings improving efficiency accuracy so that reality with highest accuracy. This paper sets out review fifteen currently widely used world. Within frame present study, some only briefly introduced; rest considered more detail, from aspects, examples readers decide themselves which suitable their area needs, especially identity complex unpredictable impacts climate change agricultural sector.