地面灌溉作为目前最主要的灌溉方式,主要包括畦灌、沟灌、淹灌、漫灌等,其优点是操作简便,管理成本低;缺点是灌溉效率低,灌水过程中水量损失大。目前,用于对地面灌溉水流进行模拟的模型有水量平衡模型、完整水动力学模型、零惯量模型和运动波模型。 As the most important irrigation methods, surface irrigation mainly includes irrigation, furrow irrigation, flooding irrigation and flood irrigation. Its advantages are simple operation and low management cost. The disadvantage is that the irrigation efficiency is low and the water loss during irrigation is large. Currently, the models used to simulate surface irrigation flows are the water balance model, the complete hydrodynamic model, the zero-inertia model, and the moving-wave model.