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第702章 逆向思维!(1 / 2)

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“束水攻沙?”

这说法让何光义听的微微一愣,他看向身后那些资历较大的治水官,显然这些人也是一脸的懵。

他们这些人很多都是从隋朝时就开始治理黄河,哪有过这种说法?

庆修向一名民夫要来一只碗,来到黄河边盛起一碗水,“你们看,这一碗黄河水,沉淀下来足足能有半碗泥沙,黄河河床所以会每年逐渐被抬高,便是这水中的泥沙沉淀所致!”

往常人们治理黄河的想法,其最主要的目的便是让黄河水流减少,水势变得缓和。

而应对的方法则是不断将黄河修建分流,令黄河主流水流减少,并且修筑堤坝拦截延缓水流来迫使水势缓和。

这么做虽然能在短时间内让黄河不会泛滥,但水势放缓,也就意味着河中的泥沙更容易沉淀于水底,结果就是河床不断被抬高,逐渐变成地上河。

分流则势缓,水势缓和则令泥沙沉淀,这是一个无解循环。

而束水攻沙法则是逆向思维,直接收紧河道,堵住支流,让所有的水流都汇集被收窄的河床中。

如此水流会变得迅猛数十倍,反而直接将积压在河底的淤泥、沙石全部冲开,令河床大大降低!

并且沙石淤泥随着湍急的水势一路东去,直至流入大海,甚至在海边积累的沙石淤泥还可以逐渐形成新的陆地,而且还是可用于耕作的肥沃良田,一举两得。

几千年下来,许多黄河流入大海的海口冲积平原便是由此而形成。

“原来如此!”

众人听罢都恍然大悟,更是感叹庆修的学识渊博惊人!

“我等只知道截断、分流这种用了千年的法子,没想到庆国公竟然能巧妙的利用水势来冲低河床!”

“要是如此下去,恐怕几十年过后河床至少就得降低数尺,过个几百年下来黄河灾患就彻底解决了。”

“天才啊!现在看分流、拦截法当真是治标不治本的笨法子!”

诸位官员都惊叹不已,如此天才设想让他们无人不为之拜服。

庆修笑道:“束水攻沙法好用,但不代表分流拦截是无用之法,毕竟大禹治水时,这黄河之中的泥沙还没有那么多,缓解水势才是重中之重。”

何光义心里真是一万个感谢庆修。

河水经过庆修治理后,至少肉眼可见未来五年的时间不会泛滥成灾。

虽然治理黄河的功绩还得算在庆修的身上,但整整五年的时间没有洪水,也能算得他何光义的功绩。

庆修间接的帮了他一个天大的忙!

洛阳这一段的河道算是被庆修的方法解决了,但这黄河河道蜿蜒大唐全境,仅仅只是对一段的河道进行改造并没有用。

以何光义的职权,他能征发调动的也仅仅只是洛阳城附近一带的民夫百姓,能修筑的河道也仅仅只有这么一小段。

如果想去调动其他地方的老百姓收窄河道,只怕会当场被当地刺史反对。

他们可不知道束水冲沙法的奇效,还以为你是故意去破坏他们的水道。

庆修看着那源源不绝的河流,心知治理黄河绝对并非是旦夕可成,一人之力便可撑起全场。

整条黄河蜿蜒流过大唐全境,想要治理必须发动关中、关东、河北以及山东的所有力量,非朝廷主导不可!

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