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May 29, 201926:13pending

【一席】宋海军:生物大灭绝

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“生物大灭绝的概念长期未引起关注,20世纪晚期得到重视以后,迅速成为科学热点,也成为了最有争议的科学问题。”在距今约2.52亿年的二叠纪-三叠纪之交,发生了地球历史上最大的一次生物灭绝事件,海洋中有超过90%的物种遭到了灭顶之灾。对这次灭绝之谜有着浓厚兴趣的宋海军,从本科时候开始,对多种生物的灭绝过程进行了探索。他2018年发表在《科学-进展》和《美国地质学会会刊》的研究成果入选2018年度中国古生物学十大进展:生物多样性在灭绝事件发生后就开始反弹,5百万年后恢复到了灭绝前的水平,而生态系统的恢复需要5千万年。大灭绝事件对生态系统的破坏程度,比当前的认识更为严重。“如果是这种情况,我们会不会有第六次生物大灭绝呢?”

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【一席】宋海军:生物大灭绝

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