2000年前后,受(shòu )自(zì )然因素与人(rén )类活动影(yǐng )响,察汗(hàn )淖尔湿(shī )地(dì )功(gōng )能(néng )下降,风沙(shā )危(wēi )害(hài )多发,生物多样性受损(sǔn )。2017年以(yǐ )来,湖泊的湖底全(quán )部裸露(lù )出来,只在夏季(jì )雨水(shuǐ )频繁时,可以(yǐ )形(xíng )成(chéng )小范围水面。如(rú )若(ruò )赶上(shàng )大旱年头,距离(lí )北京(jīng )直线距离240公(gōng )里(lǐ )的察汗(hàn )淖尔一“翻脸”,滚滚(gǔn )沙尘(chén )则(zé )遮天(tiān )蔽(bì )日(rì )过京津(jīn )。
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