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北咸海

北咸海(哈萨克语:Солтүстік Арал теңізі;俄语:Северное Аральское море)是老早辰光个咸海北边个一部分,现在伊个水源主要来自于锡尔河。

历史

勒20世纪60年代个辰光,搿搭还是苏联个地界,由于大规模个粗放农业开发需要灌溉用水,锡尔河下游水量减小,咸海水位逐渐矮脱了。到仔1986年,咸海里向已经露出来蛮多个湖床,拿咸海一分为两:北部个就是今朝个北咸海,而南边个南咸海后手来继续干脱,分为东咸海搭仔西咸海。搿几只小湖泊勒90年代仍然勒嗨缩小,其中北咸海个水还要流进南咸海,导致伊迅速缩小。到2005年,独立以后个哈萨克斯坦勒嗨北咸海出水口修好一座科卡拉尔大坝,拿北咸海个水流出去个通道堵起来,乃末北咸海个水位再又重新回升。

生态

2003年个辰光,湖水深度只有得30米,面积也只有得2550平方公里(根据日本宇宙航空研究开发机构个数据是3200平方公里);通过哈萨克斯坦个努力,北咸海湖水个水面勒2008年已经从2003年个水平升高仔12米,湖深达到42米,面积也扩大至3300平方公里(日本宇宙航空研究开发机构个数据则是3600平方公里)[1]。湖水个含盐度降低,水里向鱼类多起来了,渔业也慢慢较得以恢复。

  1. The rehabilitation of the ecosystem and bioproductivity of the Aral Sea under conditions of water scarcity (en). 原始文档勒2012-02-13存档. 访问日脚2017年4月.
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北咸海
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