Reducing uncertainty in prediction of leaf respiration in a changing world

该项目旨在促进我们对二氧化碳(CO2)释放(叶片呼吸)对二氧化碳和温度持续变化的响应的理解。陆地森林的树叶呼吸每年释放的二氧化碳是人类活动排放的二氧化碳的两到四倍，但它对气候变化的反应还不是很清楚。该项目预计将产生关于树叶呼吸对这些气候变化变量的潜在反应机制的新知识，无论是单独的还是合并的。预期的结果是提供标准，使叶片呼吸的动态变化能够在气候模型中预测。结果应该有助于改进对澳大利亚森林碳循环和气候之间反馈的预测。

This project aims to advance our understanding of responses of carbon dioxide (CO2) release by leaf (leaf respiration) to sustained changes in CO2 and temperature. Leaf respiration in terrestrial forests releases yearly CO2 that is two to four times higher than CO2 emitted by human activities, but its response to climate change is not well understood. The project expects to generate new knowledge on mechanisms underlying responses of leaf respiration to these climate change variables, separately and combined. Expected outcome is to deliver criteria that enable dynamic changes in leaf respiration to be predicted in climate models. Results should benefit improved forecast of feedback between Australian forests' carbon cycling and climate.