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近50年的强沙尘暴在我国呈急速上升趋势:50年代共发生过5次;60年代共发生过8次;70年代共发生过13次;80年代共发生过14次;90年代共发生过23次!1979年,塔里木盆地在4至6月间先后刮了三场沙尘暴,其中的一次,仅尉犁县3天之内平均每平方公里降尘256?
Strong dust storms in recent 50 years showed a rapid upward trend in our country: a total of five occurred in the 1950s; eight occurred in the 1960s; 13 occurred in the 1970s; a total of 14 occurred in the 1980s; a total of 90 occurred in the 1990s 23 times! In 1979, the Tarim Basin shaved three dust storms successively from April to June. One time, only Yulidu County dumped 256 dusts per square kilometer within 3 days.