A model for the estimation of water filtration and nutrient regeneration by exposed sandy beaches
A model for the estimation of water filtration and nutrient regeneration by exposed sandy beaches
复制标题
裸露沙滩水过滤和养分再生估算模型
DOI：
10.1016/0141-1136(82)90006-x
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
A. Mclachlan
中科院分区：
文献类型：
--
作者：
A. Mclachlan
由于波浪和潮汐的作用，裸露的桑迪每天过滤大量的海水。建立了一个回归模型，该模型预测了海滩每天过滤的水量作为潮差、海滩坡度和沙粒粒径的函数。根据这些参数，还估算了潮间距离、波浪作用引起的静水潮差以上的潮间扩展程度以及通过过滤海水所渗透的砂间隙的平均路径长度。一个方程推导出过滤后的海水中的有机物的矿化度过滤通过沙子和沙子的粒径的距离。利用所有这些信息，一个简单的模型被用来估计过滤的海水的体积和无机氮再生的量的潮间带桑迪在一系列的物理条件。这种营养生成的近岸区的影响进行了讨论。
Exposed sandy beaches filter huge volumes of sea water daily as a result of wave and tide action. A regression model is developed which predicts the volume of water filtered daily by a beach as a function of tide range, beach slope and sand particle size. From these parameters estimates are also made of intertidal distance, the degree of expansion of the intertidal above the still water tide range by wave action and the average path length through the sand interstices percolated by filtered sea water. An equation is derived relating the degree of mineralisation of organic matter in the filtered sea water to the distance filtered through the sand and the sand particle size. Employing all this information, a simple model is used to estimate the volumes of sea water filtered and the amounts of inorganic nitrogen regenerated by intertidal sandy beaches over a range of physical conditions. The implications of this nutrient generation for the inshore zone are discussed.