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第99章 划地分田(2 / 2)

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所以想要发展农业灌溉技术,平整土地只是先决条件,而对土地进行分割划块,这个措施才是农田灌溉的重中之重!

本小章还未完,请点击下一页继续阅读后面精彩内容!只有将一块块的土地经行分割划块之后,我并不需要很大的水流就能对这些农田进行浇灌了,也不用一次性的进行浇灌,而是可以将分割划块的农田进行分批量逐批次的进行浇灌。

这样不但能够节省水资源,用较少的水便是可以将土地经行充分的浇灌了。

并且这样做也便于控制水流的流速,要是水小的话,我就一次性的少开几个地块的入水口,要是水大的话我就可以多开几个地块的入水口。这样做就可以避免由于水流过大过急导致将农田之中播种的种子冲走的情况发生了。

同时也可以在这个浇灌的缓慢过程之中,对于整体地势较高的地方在其下游可以建立一道保湿的土坎,组织这块地块上的水流过快,导致有的地方没有浇灌上,这些土坎是略低于用来分割地块的土埂的,我不知道在前世的学名叫什么,但是在前世我的家乡的人是将这些用来保湿的土坎称之为保湿墒,而在土地一侧高一侧低的情况之下,我们也可以在这块地块之中合适的地方建立一道斜着的保湿墒,其样子就像是在一个长方形的两条长边之间画了一道斜线一样,这样就可以挡住过低一侧的水流使其由于保湿墒的缘故而积聚水流慢慢的太高水面,在水面抬高之后使地块高的一测也能浇灌到水。

并且可以在地块上下落差大的地方在建立一道保湿墒,使水流在流淌的过程中在没有保湿墒的情况下,不会因为落差较大水只是迅速的流过,土地还没有充分的渗透到水分,土地的表层是湿了薄薄的一层,在内力还是干燥的。而是在保湿墒的阻挡水流的作用下,使水在这块地块上停留的时间加长,这里的土地能够进行充分的渗透。土话说就是这块地浇透了!

综上所述,我们可以理解,平整土地,并对农田进行分割划块也是非常重要的!

当然我要是不考虑进行灌溉,只是想的靠天吃饭的话,也是不需要对这些农田进行划块的,但是我们部落前有着这么一条水资源丰富的河流,我怎么会傻到不去使用它的价值,而去靠天吃饭呢!靠天吃饭有时也是会靠不到的,要是老天不开眼,一年中雨水太少的话,那么等到我种植的作物都旱死了之后,我们部落吃什么!

为了稳妥起见,而且我还有这么好的条件的情况之下,为什么不去利用这些有利的条件呢!

(本章完)

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