Contemporary sulfur biomineralisation in acid sulfate soil landscapes

该项目旨在产生关于酸性硫酸盐土壤景观中当代硫生物矿化过程，动力学和对水质影响的基础知识。 洪泛区排水沟、湿地和农业土壤的表层沉积物中正在形成极端浓度的高活性硫化物。 新形成的硫化物与沿海河流的严重缺氧和酸化以及洪泛区植被的完全破坏有关，使土壤容易受到侵蚀。 这项拟议中的研究将大大促进我们对宝贵的沿海洪泛平原土壤和水资源如何退化的理解，并将指导更好的土地管理。

This project aims to generate fundamental knowledge on the processes, kinetics and impacts to water quality of contemporary sulfur biomineralisation in acid sulfate soil landscapes. Extreme concentrations of highly reactive sulfides are forming in the surface sediments of floodplain drains, wetlands and agricultural soils. The newly forming sulfides are linked to severe oxygen depletion and acidification of coastal rivers and the complete failure of floodplain vegetation, leaving soils susceptible to erosion. The proposed study will greatly advance our understanding of how our precious coastal floodplain soil and water resources are being degraded, and will guide better land management.