Beyond burial: redefining the blue carbon paradigm

超越埋葬：重新定义蓝碳范式

• 批准号: DP180101285
• 负责人: Prof Damien Maher
• 金额: $ 30.46万
• 依托单位: Southern Cross University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2018
• 资助国家: 澳大利亚
• 起止时间: 2018-03-12 至 2022-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP180101285
• 关键词: Beyond; burial; redefining; blue; carbon

This project aims to constrain the magnitude and drivers of alkalinity and greenhouse gas fluxes in mangroves. Mangroves cover less than 0.03 per cent of the Earth’s surface yet account for approximately 14 per cent of oceanic carbon burial. Mangroves also export alkalinity to the coastal ocean, and act as sources of methane and nitrous oxide. The effect of these fluxes on climate may exceed carbon burial by several-fold, but are unaccounted for in blue carbon budgets. This project will couple high-resolution radionuclide geochronology of soil carbon cycling with autonomous measurements of aquatic exports and greenhouse gas fluxes. This study will provide the detailed data required to refine the blue carbon paradigm.

该项目旨在限制红树林碱度和温室气体通量的规模和驱动因素。红树林覆盖不到地球表面的0.03%，但约占海洋碳埋藏量的14%。红树林还向沿海海洋输出碱度，并作为甲烷和一氧化二氮的来源。这些通量对气候的影响可能超过碳埋藏的几倍，但在蓝碳预算中没有考虑到。该项目将把土壤碳循环的高分辨率放射性核素地质年代学与水产品出口和温室气体通量的自主测量结合起来。这项研究将提供完善蓝碳范例所需的详细数据。