Taking advantage of rising CO2 to maximise ecosystem productivity

利用不断上升的二氧化碳来最大限度地提高生态系统生产力

• 批准号: DP150102426
• 负责人: Prof Mark Hovenden
• 金额: $ 21.77万
• 依托单位: University of Tasmania
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150102426
• 关键词: Taking; advantage; rising; CO2; maximise

The rising atmospheric concentration of carbon dioxide provides an opportunity to increase ecosystem productivity, especially in agricultural systems. To what extent is highly uncertain, particularly when combined with changing temperature and precipitation. It has recently been demonstrated that seasonal water supply is the strongest controller of the productivity response to high carbon dioxide concentrations of grasslands. This project aims to elucidate the processes governing this response and develop simple models that could allow the conditions required to maximise the productivity benefit from rising carbon dioxide concentration to be calculated.

大气中二氧化碳浓度的上升为提高生态系统生产力提供了机会，特别是在农业系统中。在多大程度上是高度不确定的，特别是当结合变化的温度和降水。 最近的研究表明，季节性供水是草地对高二氧化碳浓度的生产力反应的最强控制器。该项目旨在阐明管理这种响应的过程，并开发简单的模型，以便计算二氧化碳浓度上升所带来的生产力效益最大化所需的条件。