P-DIAGENEX · Pathways for Phosphorus (and Nitrogen) Release from Sediments of the Tamar Estuary (SW England) and the Gippsland Lakes (Australia) Eutrophic Ecosystems: Diagenesis Experiments and Modeling
6РП — Действия „Мария Кюри“
- Период
- 2005-03-01 → 2008-02-29
- Финансиране от ЕС
- 236 141 €
- Участници
- 2
- Схема
- OIF
Линиите свързват координатора с партньорите. За проекти отпреди 2014 г. CORDIS не винаги дава точни координати. Тези точки са на ниво град или държава.
Накратко на български
Фосфорът и азотът в утайките на езерата и естуарите се анализират, за да се разбере как се освобождават в водата. Това помага за оценка на риска от вредни разцвети на водорасли, които влошават качеството на водните екосистеми.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Final Activity Report Summary - P-DIAGENEX (Pathways for Phosphorus (and Nitrogen) Release from Sediments of ... Eutrophic Ecosystems: Diagenesis Experiments and Modelling)
Eutrophication can lead to the production of harmful algal blooms and is one of the worlds most serious water quality issues. Phosphorus is potentially the limiting macro-nutrient in fresh, estuarine and some marine waters. Consequently, it plays a crucial role in determining the ecological status of many aquatic ecosystems. Considerable effort was invested in monitoring dissolved reactive phosphorus and total phosphorus in the water column; however is known about phosphorus and its speciation in the sediment. This compartment is an important and dynamic reservoir of phosphorus and a potential source of phosphorus release to the water column from the sediment-water interface. This research helped to better characterise the influence of the sediment on the storage and recycling of phosphorus in aquatic ecosystems, such as estuaries and shallow lakes. By investigating solid-phase speciation, reorganisation of phosphorus within the sediments as well as potential release of bio-available phosphorus from the organic matter, this research was able to provide qualitative and quantitative assessment of the potential impact of labile and reactive phosphorus species on aquatic ecosystems.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
European coastal ecosystems because the nutrient load has greatly increased in recent years through human activity. Phosphorus has a critical role in the eutrophication of water bodies, the adverse effects of which are most apparent during algal blooms. Algal outbreaks of cyanobacteria (blue-green algae) carry significant risks to human and animal health, as well as a major economic cost. Ecosystems are particularly badly affected, to the extent that toxic algal blooms occur annually, accompanied by fish kills and significant loss of recreational and conservation value. High priority is given to minimization of phosphorus inputs to rivers and waterways. Despite these measures, algal blooms may continue to occur on a seasonal basis years after phosphorus inputs have ceased, and it is thought that this is due to periodic remobilization of phosphorus bound in the sediments. This remobilization may occur as a result of changes in redox condition, pH, ionic strength or bioturbation, but as yet, the factors controlling this complex biogeochemical process are only poorly understood. Because to date most coastal water eutrophication research has focussed on the water column, the objective of the proposed research is to increase our understanding of the role of coastal sediments in the seasonal storage and recycling of Phosphorus (and Nitrogen). This project will provide new data, which are essential for enhanced environmental monitoring and decision support systems, and will contribute to realistic diagenesis modeling. It will aid our capacity to predict environmental change and allow us to develop better strategies for prevention, mitigation and adaptation in the management of coastal and estuarine ecosystems in the European Union.
Оригинален текст от CORDIS (на английски).
Участници
- UNIVERSITY OF PLYMOUTH HIGHER EDUCATION CORPORATION · PLYMOUTHКоординаторОбединеното кралство
- WATER STUDIES CENTRE, MONASH UNIVERSITY · CLAYTONНиво градАвстралия
Връзки
Данни: CORDIS, © Европейски съюз