2000年前(qián )后,受自然(rán )因素与人类活动影响,察(chá )汗淖尔(ěr )湿地功(gōng )能(néng )下(xià )降(jiàng ),风(fēng )沙危害(hài )多发,生物多样性受损(sǔn )。2017年以来,湖泊的湖底全(quán )部(bù )裸露出(chū )来(lái ),只在(zài )夏季(jì )雨水(shuǐ )频繁时,可以形成小范(fàn )围(wéi )水(shuǐ )面。如(rú )若赶上(shàng )大旱年头,距(jù )离北京(jīng )直线距(jù )离240公(gōng )里的察(chá )汗(hàn )淖(nào )尔一“翻脸”,滚滚沙尘则遮天蔽日过京(jīng )津。
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