A PRELIMINARY MODEL OF NUTRIENT CYCLING IN SEDIMENTS OF A MEDITERRANEAN LAGOON
A PRELIMINARY MODEL OF NUTRIENT CYCLING IN SEDIMENTS OF A MEDITERRANEAN LAGOON
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DOI：
10.1016/0304-3800(94)00073-q
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发表时间：
1995-07-01
影响因子：
3.1
通讯作者：
CHAPELLE, A
中科院分区：
文献类型：
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作者：
CHAPELLE, A
建立了一个泻湖沉积物中氮磷循环的模型。该模型被应用到陶泻湖（法国南部）。沉积物被切成三层，以重现氧气分布，这是模拟模型内。根据平衡假设，该模型对现场数据进行了校准。状态变量和通量估计在沉积物和整个沉积物-水界面。进行了蒙特卡罗敏感性分析，以确定最敏感的参数和沉积物状态变量。动态模拟结果表明，缺氧对沉积物-水界面磷、氮通量的影响。
A model of nitrogen and phosphorus cycles in the sediment of a lagoon has been developed. This model was applied to the Thau lagoon (southern France). Sediment was sliced in three layers to reproduce the oxygen profile, which is simulated within the model. Following an equilibrium hypothesis, the model was calibrated against field data. State variables and fluxes were estimated in the sediment and across the sediment-water interface. A Monte Carlo sensitivity analysis was performed to determine the most sensitive parameters and sediment state variables. A dynamic simulation with varying oxygen concentrations then showed the influence of anoxia on the phosphorus and nitrogen fluxes between water and sediment.