Up in smoke and out to sea? Carbon, water and land use change in savanna

冒烟而出海？

• 批准号: DP160101497
• 负责人: Prof Lindsay Hutley
• 金额: $ 27.82万
• 依托单位: Charles Darwin University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2016
• 资助国家: 澳大利亚
• 起止时间: 2016-05-30 至 2019-05-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP160101497
• 关键词: Up; smoke; out; sea; Carbon

This project aims to improve our understanding of carbon cycling in natural and transformed savannas. It seeks to resolve a large discrepancy in savanna carbon sink size as measured by flux towers compared to long-term direct measures of carbon stock change. This would improve our fundamental understanding of carbon balances (gains/losses) and residence times in these dynamic ecosystems. The long-term impacts of these land use changes on carbon storage are poorly understood, therefore this new knowledge is vital in determining the viability of 'carbon farming' in these landscapes. More accurate information would guide improved land management given the intensification of land use, weed invasion and fire regime change in northern Australia.

该项目旨在提高我们对天然稀树草原和改造稀树草原碳循环的理解。它试图解决用通量塔测量的稀树草原碳汇大小与长期直接测量碳储量变化相比存在的巨大差异。这将改善我们对碳平衡(收益/损失)和在这些动态生态系统中的停留时间的基本理解。人们对这些土地利用变化对碳储存的长期影响知之甚少，因此，这一新知识对于确定这些景观中“碳农业”的可行性至关重要。鉴于澳大利亚北部土地利用、杂草入侵和火灾制度变化的加剧，更准确的信息将指导改善土地管理。