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小柴旦湖面持續擴大逼近周邊公路

2019-01-06 10:58 來源: 西寧晚報 作者: 劉瑜 喬斌

????根據省氣象科學研究所遙感監測,近年來柴達木盆地小柴旦湖面積持續擴大,目前已經逼近西側和南側的柳格高速和德小高速,對公路安全運行構成潛在隱患。

????衛星遙感影像資料顯示,2018年5月24日小柴旦湖面積為102.09平方公里,至10月6日面積已達123.68平方公里,較2017年10月2日面積擴大了11.82平方公里,已達1976年以來的最大值。氣候條件分析表明,2018年大柴旦地區5月—8月份降水偏多是可能造成小柴旦湖水體面積快速擴大的重要原因。小柴旦湖面積持續擴大,顯著增加了湖區周邊土壤水分,有利于周邊植被的生長,改善了周邊野生動植物和鳥類棲息環境。但其面積擴大逐漸逼近周邊的高速公路。專家建議有關部門定期開展湖面面積監測,加強湖區周邊安全巡視和生態安全評估。

????小柴旦湖又名巴嘎柴達木湖,位于海西州大柴旦鎮偏南方向約35公里處,塔塔棱河是流域內最大的河流,是小柴達湖的重要補給水源。作為干旱區內陸湖泊,其對人類活動和氣候變化響應極其敏感。另外,小柴旦湖作為柴達木盆地獨特的濕地景觀,具有較高的生態、經濟和科研價值。

[責任編輯: 汪曉青]
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