关于汾河断流的分析

Analysis of Dry River in Fenhe River

从汾河的古代历史谈起，阐述了汾河历史上曾经水量盈富。30年代起，汾河有了定量观测资料。从掌握的实测资料看，汾河最早出现断流的时间为1958年。但没有出现过全河性的断流，断流最严重的河段在中游的义棠水文站，1958～1994年37a中，该站有29a发生过断流现象。汾河断流除使沿河取用水陷入困境外，给水环境、防汛也带来严重影响。

It is described in the paper from the ancient history of Fenhe river that there was ever been rich Of water in the river.The quantity observation data for the river was started in 1930s. The data shown that the earlist dry river of Fenhe river was in 1958 with the most serious dry reach at Yitang hydrological station in foe middle, but without dry river in whole reaches.There had been 29 years with he river in 37 years from 1958 to 1994, which broguht about not only difficulty of water supply along Fenhe river, but also tremendous influences on water envirnnment and flood protection.Keywoads: dry river, water resource development, water environment, cause, influence, Fenhe river