Unravelling the microbial mechanisms of soil nitrous oxide emissions

揭示土壤一氧化二氮排放的微生物机制

• 批准号: DE150100870
• 负责人: Dr Hangwei Hu
• 金额: $ 23.59万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2018-02-28
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE150100870
• 关键词: Unravelling; microbial; mechanisms; soil; nitrous

Soil ecosystems are believed to be the most dominant sources of global nitrous oxide emissions. However, mitigations of nitrous oxide are strongly hindered by lack of knowledge on microbial mechanisms underpinning its production. This project aims to integrate a range of advanced approaches to identify the key nitrogen cycling genes as best predictors of nitrous oxide in field studies, to disentangle relative contribution of microbial pathways to nitrous oxide in glasshouse and microcosm studies, and to validate these findings across various land-use types in Australia and China. This will provide a critical framework incorporating microbial data into the nitrous oxide prediction models for better mitigation of greenhouse gas emissions.

据信，土壤生态系统是全球一氧化二氮排放的最主要来源。然而，由于缺乏对其生产的微生物机制的知识，因此对一氧化二氮的缓解受到了极大的阻碍。该项目旨在整合一系列先进方法，以鉴定野外研究中一二氮的关键氮循环基因作为对一氧化二氮的最佳预测指标，以解散在澳大利亚和中国各种土地利用类型的玻璃体系和微观环境研究中微生物途径对一硝酸氧化物的相对贡献。这将提供一个关键的框架，将微生物数据纳入一氧化二氮预测模型中，以更好地减轻温室气体排放。