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在未来数十年间,如果出现气温增加3℃且降水同时减少20%的天气状况,黄河上游的水量将比目前还要减少50%以上。来自兰州的水文与气象专家在最新一期的《冰川冻土》杂志上撰文警告说。上游枯水,对下游来说则意味着大面积、长时间的生态恶化。“尽管出现这种最糟糕情景的可能性很小,但不是没有。”文章的第一作者、中国科学院寒区旱区环境与工程研究所蓝永超研究员说。一个极端的事件已经在2003年12月发生,当时黄河源头地区的鄂陵湖出水口出现历史上的首次断流,新华社发布的消息称,黄河源头地区的生态全面告急。
In the coming decades, if there is a 3 ° C increase in temperature and a 20% reduction in precipitation at the same time, the amount of water in the upper reaches of the Yellow River will be reduced by more than 50%. Hydrology and weather experts from Lanzhou warned in an article in the latest issue of Glacier Frozen Earth. Upstream of the low, the downstream means a large area, a long time of ecological deterioration. “Although the possibility of such a worst scenario is small, it is not without ” said the first author of the article, Lan Yongchao, a researcher at the Cold and Arid Regions Environmental and Engineering Research Institute of the Chinese Academy of Sciences. An extreme incident took place in December 2003 when the first outflow of water at the Eling Lake outlet in the headwaters of the Yellow River occurred. According to Xinhua News Agency, the ecology in the headwaters of the Yellow River was in complete emergency.