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甘肃省引大入秦工程是一项大型跨流域自流落溉工程,总干渠全长87km,东一干渠全长49.5km,东二干渠全长54.3km,干渠工程最高海拔2265.5m,最低海拔2165m,多年平均气温6.5~7.1℃,极端最高气温31℃,极端最低气温-25.4℃,冻土厚度1.46m。随着工程运行管理的逐步深入,地处高寒地区的引
Gansu Province, the introduction of Qin into the project is a large-scale inter-basin self-irrigation project, the total length of 87km, the trunk of a total length of 49.5km, the trunk length of 542km, the highest elevation of 2265.5m, the lowest elevation of 2165m , The annual average temperature of 6.5 ~ 7.1 ℃, the extreme maximum temperature of 31 ℃, the extreme minimum temperature of -25.4 ℃, frozen soil thickness of 1.46m. With the gradual deepening of project operation and management, is located in the alpine region cited