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勾晓华:“跑山”的女科学家

2018-04-24 15:41:05    新华网

勾晓华说:“通过研究树木年轮,我们可以知道一个研究区域过去几百年到几千年的气候变化和生态环境变化历史,并找到其中的规律,在此基础上,可对未来气候变化形成预估。”

十余年来,勾晓华的足迹遍布祁连山、贺兰山和阿尼玛卿山等西部重要山脉。野外考察动辄半个月以上,但她不觉得苦,反而庆幸这片土地给了她许多搞科研的机会。

白天徒步采样,饿了,大饼咸菜就着山泉水就是一顿饭,能想办法烧开一壶水,泡碗方便面就是美味了。晚上经常要在空旷的山林里安营扎寨。和衣躺在帐篷里,伴随她的是夜空中的满天繁星和耳边呼啸的寒风。“山里的清晨特别冷,早上醒来帐篷上会结一层霜。河水冰冷,冷到不敢洗脸。”勾晓华笑着说,“就当防晒了。”

2000年,勾晓华和团队成员在祁连山考察途中,驮着行李的毛驴突然躁动起来,拼命把背上的行李往地下甩,企图挣脱束缚逃走。当地向导野外经验丰富,立即警觉起来:“背后有狼!”

“我们当时紧握采样工具当成防身武器,背靠背站成一圈,大家都不敢出声,只能快步走,走到开阔的地方时,狼就离开了。”勾晓华说,当时吓得她手心里都攥出了汗。

遇强则强、迎难而上是勾晓华的性格。多年的不懈坚持令她和团队成绩斐然。近年来,他们定量重建了黄河上游近千年来的径流量变化;利用树轮重建了过去气候变化历史,特别是区域干湿变化历史,并展开了我国西北及周边区域干湿变化的面域树轮重建与对比研究。

勾晓华最重要的研究对象,是生活在祁连山深处的祁连圆柏。祁连圆柏是一种非常古老的树种,活树的树龄可达2000年,它的生命力极其顽强,只需少量水分土壤就能生生不息繁衍下去。她希望自己也像这古老的树种一样,积极、顽强、向上,不断成长。

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