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通过研究长江三角洲近５００年来的气候历史记录，揭示了这种气候极端事件出现的规律、模式，及其与全球气候变迁的关系。在过去５００年中（自公元１５００年以来），共出现了１６个区域性气候极端事件。所有这些事件都与所报道的埃尔尼诺和南方涛动（ＥＮＳＯ）事件有关。研究表明，本区降雨量大的年际变化都出现在ＥＮＳＯ事件之中或之后。因此长江三角洲这种受人类影响日益增强的系统管理，必须考虑到这种主要气候变化的周期、强度，以及因人口的增长和社会机构的改变对气候造成的影响。
By studying the climate history of the Yangtze River Delta in the past 500 years, we have revealed the laws and patterns of such extreme weather events and their relationship with global climate change. Over the past 500 years (since 1500), a total of 16 regional climate extremes have occurred. All of these events are related to the reported El Niño and Southern Oscillation (ENSO) events. The study shows that the large annual rainfall variations in the region occur during or after the ENSO event. Therefore, this increasingly affected system of human management in the Yangtze River Delta must take into account the cycle and intensity of such major climate changes as well as the climate impact caused by population growth and changes in social institutions.