Collaborative Research: Flooding the Colorado River Delta: Impacts of Flow Restoration on River-Carbon Composition and Fluxes

合作研究：科罗拉多河三角洲洪水：流量恢复对河流碳成分和通量的影响

• 批准号: 1434983
• 负责人: Peter Raymond
• 金额: $ 3.2万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-05-01 至 2015-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1434983&HistoricalAwards=false
• 关键词: Collaborative; Research; Flooding; Colorado; River

An addition to the 1944 U.S.-Mexico Water Treaty between the United States and Mexico will allow for greater sharing of water from the Colorado River. This agreement calls for a flooding event, planned for from March 2014 to May 2014, whereby 130 million m3 of water will be released into the dry Colorado River channel in Mexico. The project will examine how rapid mobilization of carbon and greenhouse gasses in newly flooded sediments and soils, affect river-carbon composition and fluxes (land/ocean and land/atmosphere), after being isolated from an active floodplain. This is particularly important in light of possible increases in the occurrence of natural flooding events associated with climate change. It is also an important study in terms of understanding the unintended consequences of such ecosystem restoration efforts. The project is to be conducted as a cooperative venture between US academic scientists, USGS scientists and faculty/students from the Universidad Autónoma de Baja California. The project will generate international experience and provide a basis for entry into a carbon cycle problem of significant scope. This project is supported by EAR/HS, EAR/GG, EAR/GLD, DEB/ECO and ISE/GVF.

美国和墨西哥在1944年签订的《美墨水资源条约》中增加了一项条款，允许两国更多地共享科罗拉多河的水资源。该协议要求在2014年3月至2014年5月期间发生洪水事件，届时1.3亿立方米的水将被释放到墨西哥干涸的科罗拉多河通道中。该项目将研究新被淹没的沉积物和土壤中碳和温室气体的快速动员如何影响河流碳组成和通量（陆地/海洋和陆地/大气），在与活跃的洪泛平原隔离之后。鉴于与气候变化有关的自然洪水事件可能增加，这一点尤其重要。在理解这种生态系统恢复工作的意外后果方面，这也是一项重要的研究。该项目将由美国学术科学家、美国地质勘探局科学家和下加利福尼亚大学Autónoma的教师/学生合作开展。该项目将产生国际经验，并为进入重大范围的碳循环问题提供基础。本项目由EAR/HS， EAR/GG, EAR/GLD， DEB/ECO和ISE/GVF支持。