Empirical Study on the Sustainability of Large-Scale IrrigationProject and Development Effectiveness of Rural Communities

大型灌溉项目在农村发展中发挥作用，通过灌溉发展增加粮食产量，审查了发展的可持续性和对农村社会的影响。在这些地区，除了种植作物外，水还用于城市、工业和环境目的。据证实，这些项目对区域经济发展作出了巨大贡献。在土地转换和污染负荷的背景下，由于城市化，流域水质保护的重要性和稀释水的必要性。利用卫星遥感技术，可以对三种水稻的稻田面积进行遥感监测。

Large-scale irrigation projects have a role in rural development by increasing food production by irrigation development, the sustainability of development and the effect given to the rural society are examined. In the case regions, in addition to the cropping, water is also used for city, industrial and environmental purposes. It was confirmed that the projects have contributed greatly to regional economic development. In the context of land conversion and pollution load due to urbanization, the importance of watershed water quality conservation and the need for dilution water are pointed out. And the paddy area of three rice crops can be detected by satellite remote sensing.