推荐回答(5个)
沼泽地,河滩水流形成的旋涡稀泥坑,人走到里面,不但恐怖,而且很危险,本人亲身体验过,一提起来后脊梁冒冷气,直后怕。我从小生活在汾河两岸,十五岁以前住在西岸,以后生活在东岸。小时候家住河西,厂宿舍到汾河走路十几分钟时间。上小学时,一到夏天,学校严令禁止游泳,家里也不让去河边玩。但小孩逆反心理强,越不让做的事,想方设法去做,我就如此,常常偷偷去汾河玩水,还不辞劳苦,中午去游泳,赶到学校先到自来水那儿把脚面,胳膊上的泥沙洗掉再进教室,老师挨个体捡,方法是用指甲划,玩过水的一划就有白道,没玩水的没痕迹或划成浅红道。只要捡查出来,学校家中严格处罚,就因为怕学生淹死,或泥沼陷入。
沼泽地是很恐怖,当然在电视剧出演的也是真实的存在,在世界上有很多的这种地区都会有这种环境的存在 ,如果人一旦陷入去,最好的是等待救援,或抓住临近物,如果你自己越挣扎,下沉速度就会越快,在沼泽地这种环境恐怖的就是没有地下支持力,超过人体高度的深度陷入里面最终窒息死亡,而沼泽地又不同于水里,水中有较大的浮力,在流体里可以进行游动,而沼泽应属于非牛顿流体的范畴。
会“陷人”的那种沼泽地叫做“流沙”,它是一种特殊的非牛顿流体,具有“剪切增稠”效应。这种流体有个特点:你别扰动它,让它一个人静静,它看起来就是液体;一旦你大力扰动它了,它就成了固体。这种性质,使得静止状况下,它是液体;一脚踩上去,轻松没过脚面;然后惊慌之下,猛抽脚,脚面上的“稀泥”就忽然变得好像凝固的水泥一样,把脚拽掉都拉不出来。
沼泽的形成是一个漫长的过程。河流湖泊湿地等区域都会形成沼泽地域,因为常年的河水雨水冲刷把大量的泥沙和植物树叶等沉积在河床的低洼处,慢慢填满后就形成了沼泽而且深不可测。所以假如你遇到了这样的环境,首先如果其它地方多有荒草滋生而此地光秃秃的一片而且颜色发黑,那么十有八九就是遇见沼泽了!假如一旦误入沼泽,千万不可慌张,千万不可挣扎,因为越挣扎就陷的越深。
沼泽是含水量非常大的细颗粒土质,所以很松软,有因为含水量大(大于30%),所以会让人窒息,挣扎就像井钻,会很快陷下去的。
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