2000年前后,受自然(rán )因素(sù )与(yǔ )人(rén )类活动影响(xiǎng ),察(chá )汗淖(nào )尔(ěr )湿(shī )地功(gōng )能(néng )下降(jiàng ),风(fēng )沙危(wēi )害(hài )多发,生物多(duō )样性受损。2017年以来(lái ),湖泊的湖(hú )底全部裸(luǒ )露出来(lái ),只(zhī )在夏季雨水(shuǐ )频(pín )繁时(shí ),可以形成(chéng )小范(fàn )围(wéi )水面。如若赶上大旱(hàn )年头,距离北京直线距离240公(gōng )里的察(chá )汗淖(nào )尔一“翻脸”,滚(gǔn )滚沙(shā )尘则(zé )遮天(tiān )蔽日过京津。
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