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1998年4月,环境学家杨勇经川藏公路进藏,发现金沙江上游洪峰早到,江中浊浪滚滚,这是他以前从未见到过的情形。他马上预料到这将是一个暖年份;江源冰川解冻融化提前,长江可能会有洪灾汛情。他当即请随同采访的中央电视台记者潘红梅回京后迅速将此情况报国家防汛总指挥部。果然,那一年的8-9月间长江流域降雨量猛增,生态和水保系统崩溃,国人经历了一场刻骨铭心的长江特大洪水。
In April 1998, environmental scientist Yang Yong was admitted to Tibet by the Sichuan-Tibet Highway and found that the flood peak early in the upper reaches of the Jinsha River and the turbidity billowed in the river had never been seen before. He immediately expected this will be a warm year; Jiangyuan glacier thaw thawed ahead of the Yangtze River flood may flood. He immediately asked Pan Hongmei, an CCTV reporter, to report the situation to the State Flood Control Headquarters immediately after his return to Beijing. Sure enough, during the August-September period of the year, rainfall in the Yangtze River Valley soared, ecological and water conservation systems collapsed, and people in China experienced an unforgettable flood of the Yangtze River.