Reducing export of acid sulfate soil products (particularly iron, aluminium, phosphorus, and organic carbon) as contaminants to coastal waters.
Reducing export of acid sulfate soil products (particularly iron, aluminium, phosphorus, and organic carbon) as contaminants to coastal waters.
批准号:
LP0455697
负责人:
Prof David Waite
金额:
$29.51万
依托单位国家:
澳大利亚
项目类别:
Linkage Projects
财政年份:
2004
资助国家:
澳大利亚
项目状态:
已结题
起止时间:
2004-01-01 至 2009-06-30
中文摘要
目前澳大利亚对酸性硫酸盐土壤(ASS)的管理强调减少洪泛区排水的酸性。然而,这种酸度主要来自溶解的金属,可以通过一些管理技术来增加。溶解的金属可能具有生物毒性或鼓励有害的沿海浮游植物。有机金属配合物可以增加金属的迁移,但也会遮蔽土壤和排水表面,人工湿地提供了新的管理工具。我们的研究旨在减少这些ASS产品向沿海水域的运输。可持续发展的澳大利亚海岸要求改善南太平洋泛滥平原不能以牺牲沿海水域的环境为代价。
英文摘要
Current Australian management of acid sulfate soils (ASS) emphasises the reduction of acidity in floodplain drainage. However this acidity is mainly from the dissolved metals, which can be increased by some management techniques. Dissolved metals can be biotoxic or encourage harmful coastal phytoplankton. Organic metal complexes can increase metal transport but shading of soil and drain surfaces, and constructed wetlands offers a new management tool. Our research aims to reduce transport to coastal waters of these ASS products. A sustainable Australian coast requires that improvement of ASS floodplains must not be at the environmental expense of coastal waters.
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海外基金