The effect of climate change on the biogeochemistry of estuarine soft soils

澳大利亚的海岸线在很深的地方点缀着软粘土。这些软粘土沉积物显示出过度沉降的特征，影响了交通基础设施。了解孔隙液体的地球化学组成和软土的力学行为之间的耦合是必要的，但目前的工程实践是有限的。澳大利亚的海平面上升可能会使高达670亿美元的交通基础设施面临风险;因此，本项目旨在研究气候变化对河口沉积物生物地球化学过程的影响，涉及：岩土工程特性;海平面变化下的软土稳定性;土壤碳固存。

The Australian coastline is dotted with soft clays to a significant depth. These soft clay deposits display excessive settlement characteristics, affecting transport infrastructure. Understanding the couplings between the biogeochemical composition of the pore liquid and the mechanical behaviour of soft soils is essential, but current engineering practice is limited. Sea level rise in Australia will potentially place as much as $67 billion in transport infrastructure at risk; consequently, this project aims to examine the impact of climate change on the biogeochemical processes of estuarine sediments in relation to: geotechnical properties; soft soil stability under sea level change; and soil carbon sequestration.