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一、前言—排洪能力不断减小,是黄河问题的关键黄河问题主要是防洪,来洪大,排洪能力小,而且不断减小。特别是山东河段,其排洪能力不及来洪的40％,每年还要减小二、三百秒立米。
I. INTRODUCTION - The continuous reduction in flood discharge capacity is the key to the Yellow River issue The Yellow River flood problem is mainly caused by flooding floods. Flood discharge capacity is small and decreasing. In particular, the Shandong reach has a capacity of less than 40% of its flood discharge capacity, reducing its annual output by two or three hundred seconds.