Abstract:

The drought event in the whole Yangtze River Basin, which started in June this year and lasted till now, not only has a very serious impact on agriculture, energy and other aspects, but also shows many unique characteristics in development process and impact feature of drought that are rarely seen in the past, it is very necessary to conduct scientific analysis on it. On the basis of both science and popular science, from the perspectives of the new normal and the anti-normal, respectively, this paper tries to make some simple scientific interpretation of the current severe drought event in 2022 in the Yangtze River Basin, from the aspects of the performance characteristics, formation mechanism, influence characteristics and the enlightenment and thinking obtained from the drought, so as to promote the public scientific understanding of the drought event.

Key words: the Yangze River Basin, severe drought, the new normal and the anti-normal, superposition effect, penetrating subtropical high pressure belt

摘要：

今年从6月开始持续到目前的整个长江流域的干旱事件，不仅对农业和能源等各方面影响十分严重，而且干旱发展过程和影响特征还表现出许多与以往不同的独特性，对其进行科学分析十分必要。鉴于此，该文试图在科学与科普同时兼顾的基础上，分别从新常态与反常态两个视角，从干旱的表现特征、形成机制、影响特点及从中得到的启示与思考等方面，对当前还在肆虐的2022年长江流域严重干旱事件进行一些简单的科学解读，以促进社会公众对此次干旱事件的科学认识。

关键词: 长江流域, 重大干旱, 新常态与反常态, 叠加效应, 贯穿性副高带