Schwertmannite in acid sulfate soil landscapes: iron cycling induced acidification

酸性硫酸盐土壤景观中的施威特曼石：铁循环引起的酸化

• 批准号: DP0666334
• 负责人: Prof Richard Bush
• 金额: $ 24.46万
• 依托单位: Southern Cross University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2006
• 资助国家: 澳大利亚
• 起止时间: 2006-01-12 至 2011-06-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0666334
• 关键词: Schwertmannite; acid; sulfate; soil; landscapes

Acid sulfate soils impact over 24 million ha of land throughout the world, 4 million ha of valuable coastal land in Australia alone. Their oxidation and acidification are the cause of catastrophic declines in water quality, aquatic habitat, agricultural productivity and urban infrastructure. The practical benefits of this project arise from an improved understanding of the processes controlling acidification and water quality in these areas. Intellectual benefits include the development and application of novel geochemical concepts involving iron minerals relevant to acidity impacted coastal rivers, wetlands and estuaries; this project will enhance Australia's capacity for sustainable environmental management.

酸性硫酸盐土壤影响了全世界超过2400万公顷的土地，仅在澳大利亚就影响了400万公顷宝贵的沿海土地。它们的氧化和酸化是水质、水生生境、农业生产力和城市基础设施灾难性下降的原因。该项目的实际效益来自于更好地了解控制这些地区的酸化和水质的过程。智力收益包括开发和应用新的地球化学概念，涉及与受酸度影响的沿海河流、湿地和河口有关的铁矿物；该项目将提高澳大利亚可持续环境管理的能力。