RAPID: A massive floodplain reconnects: physical and biotic responses of the Birds Point levee breach in the Mississippi River

快速：巨大的洪泛区重新连接：密西西比河鸟角堤坝决口的物理和生物反应

• 批准号: 1139845
• 负责人: James Garvey
• 金额: $ 7.5万
• 依托单位: Southern Illinois University at Carbondale
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-07-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1139845&HistoricalAwards=false
• 关键词: RAPID; massive; floodplain; reconnects; physical

This RAPID proposal will follow the ecosystem changes that occur as a long-disconnected floodplain of the Mississippi River at the Birds Point Levee becomes inundated with floodwaters from the historic high flows of spring 2011. The researchers will investigate ecosystem metabolism (primary production and respiration) and secondary productivity of the floodplain system during the inundation period (expected to last until end of summer 2011). The researchers will compare their findings with data on ecosystem metabolism of the river from past studies.An event of the magnitude that is now occurring on the Mississippi River has not been seen since the 1930's (when its ecosystem effects were not studied). Extreme events like these call to question past decisions to constrain the river and prevent floodplain inundation. Research will provide a basis for evaluating alternative management strategies to accommodate extreme flooding events which may occur more frequently under future climates.

这项 RAPID 提案将跟踪 2011 年春季历史性高流量洪水淹没密西西比河 Birds Point 大堤处长期断开的洪泛区时发生的生态系统变化。研究人员将调查洪水期间（预计持续到 2011 年夏末）洪泛区系统的生态系统代谢（初级生产和呼吸）和次级生产力。研究人员将他们的发现与过去研究中河流生态系统代谢的数据进行比较。自 1930 年代以来，密西西比河上发生的如此大规模的事件（当时尚未研究其生态系统影响）还从未出现过。诸如此类的极端事件让人对过去限制河流和防止洪泛区淹没的决定提出质疑。研究将为评估替代管理策略提供基础，以适应未来气候下可能更频繁发生的极端洪水事件。