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Abnormally low precipitation-induced ecological imbalance contributed to the fall of the Ming Dynasty: new evidence from tree rings

机译:异常低降水引起的生态失衡导致了明朝的衰落:来自树木年轮的新证据

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摘要

Climate change has played a crucial role in the subrogation of Chinese dynasties. In particular, the Ming-Qing transition coincided with the rapid decrease in precipitation and the sharp deterioration of agroecological conditions in northern China under the cold conditions brought on by the Little Ice Age. Here, we present a new precipitation reconstruction (June-April) for northern Chinese Loess Plateau since 1590 CE. The reconstruction was derived from a tree-ring width chronology of Platycladus orientalis, and made it possible to quantitatively assess the period of megadroughts during the late Ming Dynasty, with high resolution. Our analysis showed that these extreme drought events have been unprecedented in China for the last 500 years, and precipitation variation could be linked to ENSO activities. The environmental imbalance caused by these megadroughts magnified the negative impacts of the climate on agriculture and society, an important reason for considering these phenomena as catalysts for the demise of the Ming Dynasty.
机译:气候变化在中国王朝的代位中发挥了至关重要的作用。特别是明清转型期间,在小冰河期带来的寒冷条件下,中国北方降水量迅速减少,农业生态条件急剧恶化。在这里,我们介绍了自公元1590年以来中国北方黄土高原的新降水重建(6-4月)。该重建来源于东方鸭嘴蜥(Platycladus orientalis)的年轮宽度年表,使得能够以高分辨率定量评估明末特大干旱时期。我们的分析表明,这些极端干旱事件在中国是近500年来前所未有的,降水变化可能与ENSO活动有关。这些特大干旱造成的环境失衡放大了气候对农业和社会的负面影响,这是将这些现象视为明朝灭亡催化剂的重要原因。

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