Along with nitrogen and iron, phosphorous is a key limiting nutrient in the ocean.

磷和氮、铁都是海洋有限的重要营养元素。

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Phosphorus is the first limiting nutrient density to the algae populations, and therefore control the eutrophication, may depend on the phosphorus control measures.

磷是水体中藻类种群和密度的第一限制性营养元素，因此在水体富营养化的治理上，可能取决于对磷的控制措施。

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In some places, though, iron is the limiting nutrient. Adding iron to such places should cause a bloom of planktonic algae, thus sucking carbon dioxide out of the atmosphere.

然而在一些地方却缺少铁物质，在这些地方添加铁物质可以产生茂密的浮游藻类，并因此能从大气层中吸取二氧化碳。

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Nutritionists say that limiting caloric intake in a compressed time frame can lead to nutrient deficiencies, causing decreased immune function, dry skin and loss of muscle or bone density, for starters.

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