对于黄河中游来水来沙问题我是第一次接触,情况了解不够,许多研究成果尚有待消化,很难提出什么好的建议,仅谈谈个人的一点看法。 前一段时间有人提出长江来沙量增加问题,当时很不以为然,认为这完全是水文系列的问题,事实也确实如此。点绘长江年输沙量因时变化曲线,近几年来虽然明显偏大,但完全处在多年波动幅度之内,因此不 For the middle reaches of the Yellow River came to the water and the sand I was the first contact, the situation is not enough to understand, many research results have yet to be digested, it is difficult to make any good suggestions, only to talk about personal point of view. Some time ago it was raised that the issue of increasing the volume of sediment in the Yangtze River was very disagreeable at that time. This was considered to be a complete issue of the hydrological series and the fact was true. Point out the Yangtze River sediment transport from time to time curve, in recent years, although significantly larger, but completely in the range of years of volatility, so not