2000年前后,受自然因素(sù )与人类活动(dòng )影(yǐng )响(xiǎng ),察(chá )汗(hàn )淖(nào )尔湿地(dì )功(gōng )能下降,风沙(shā )危害多发,生(shēng )物多样性受损(sǔn )。2017年以来(lái ),湖泊的湖(hú )底(dǐ )全部(bù )裸露(lù )出(chū )来,只在(zài )夏(xià )季雨(yǔ )水(shuǐ )频繁时(shí ),可以形成小(xiǎo )范围水面(miàn )。如(rú )若(ruò )赶(gǎn )上(shàng )大旱(hàn )年头,距离北京直线距(jù )离240公里(lǐ )的察汗淖尔一“翻(fān )脸(liǎn )”,滚滚沙(shā )尘(chén )则遮天蔽(bì )日过京津(jīn )。
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