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Yangtze floods recorded on Mt. Mufu and Swallow Cliff in Nanjing, China

机译：长江洪水记录在山。中国南京的木府和燕子崖

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ABSTRACT The Yangtze drainage basin is the most densely populated and prosperous area of China; however, it is frequently threatened by floods. The Holocene flood lines of the Yangtze River have been preserved on Mt. Mufu and Swallow Cliff in north-eastern Nanjing, and they are characterised by the presence of particular colour tones and the horizontal arrangement of erosional pits and holes. Four major paleo-flood lines at altitudes of 8.51, 9.43, 10.47, and 12.84????m were identified via a field survey along the river bank. Historical literature and instrumental flood records extend the paleo-flood stage to the contemporary era and indicate that the highest flood line of 12.84????m represents a maximum limit for future floods. Besides, the flood line at 10.47????m can be regarded as a foreseeable extreme flood risk level with a recurrence interval of 100?￠????200 years, especially considering the current circumstances of rising sea levels and decreasing flood storage capacities caused by human activities.
机译：摘要长江流域是中国人口最稠密，最繁荣的地区。但是，它经常受到洪水的威胁。长江的全新世洪水线已保留在太原山。南京东北的木府和燕子崖，其特征是存在特定的色调以及侵蚀性坑洞的水平排列。通过沿河岸的野外调查，确定了海拔分别为8.51、9.43、10.47和12.84？m的四条主要古洪水线。历史文献和工具性洪水记录将古洪水阶段扩展到了现代时代，并表明最高洪水线为12.84？m，代表了未来洪水的最大极限。此外，考虑到当前海平面上升和洪水蓄积量减少的情况，可以将10.47？m的洪水线视为可预见的极端洪水风险水平，其复发间隔为100？200？200年。人类活动引起的能力。

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