Unravelling the pathways of methane production and oxidation in mangroves

该项目通过识别和量化红树林生态系统中的甲烷产生和氧化过程，解决了为什么高甲烷排放在盐碱沿海湿地中持续存在的长期难题。该项目将使用一种新颖的温室气体尖端仪器、放射性碳/稳定同位素分析相结合，首次绘制出红树林甲烷循环的完整图像，首次准确量化澳大利亚对全球沿海红树林排放的贡献。研究结果将建立目前缺乏湿地甲烷循环的基本认识，推进全球生物地球化学模型，并改善澳大利亚沿海湿地自然气候解决方案的战略。

This project addresses a long-standing conundrum of why high methane emissions are sustained in saline coastal wetlands by identifying and quantifying methane production and oxidation processes in mangrove ecosystems. Using a novel combination of cutting-edge instrumentation for greenhouse gases, radiocarbon/stable isotope analysis, this project will generate a first complete picture of the mangrove methane cycle, to accurately quantify, for the first time, Australia’s contribution to global coastal mangrove emissions. The outcomes will establish currently lacking fundamental understanding of wetland methane cycling, advance global biogeochemical models, and improve strategies for natural climate solutions of coastal wetlands in Australia.