Temporal and spatial patterns of intertidal sediment-water nutrient and oxygen fluxes in the Douro River estuary, Portugal

Catarina M.Magalhaes; Adriano A.Bordalo; William J.Wiebe

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Temporal and spatial patterns of intertidal sediment-water nutrient and oxygen fluxes in the Douro River estuary, Portugal

机译：葡萄牙杜罗河河口潮间带沉积物-水养分和氧气通量的时空格局

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The Douro River watershed drains 17/100 of the Iberian Peninsula; the present average freshwater discharge into the estuary is 488 m~3 s~-1. The Douro River estuary receives largely untreated sewage from about 1 million inhabitants of Greater Porto. A major portion of the intertidal sediments is currently scheduled for removal by dredging. In order to assess their role in nutrient dynamics and productivity, sediment-water fluxes of ammonium, inorganic phoshorus, nitrate, nitrite, silicate and oxygen were determined quarterly in muddy and sandy intertidal sediments of the lower estuary. Fluxes were estimated with both light and dark incubations.

机译：杜罗河（Douro River）分水岭排泄伊比利亚半岛的17/100；目前入河口的平均淡水排放量为488 m〜3 s〜-1。杜罗河河口从大波尔图的约100万居民那里接收未经处理的污水。目前，大部分潮间带沉积物计划通过挖泥清除。为了评估它们在养分动态和生产力中的作用，每季度确定下河口泥质和沙质潮间沉积物中铵，无机磷，硝酸盐，亚硝酸盐，硅酸盐和氧气的沉积物水通量。在黑暗和黑暗的孵育中都估计通量。

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来源
《Marine ecology progress series》 |2002年第2002期|p.55-71|共17页
作者
Catarina M.Magalhaes; Adriano A.Bordalo; William J.Wiebe;
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正文语种 eng
中图分类海洋学;
关键词
douro river estuary; intertidal flat; sediment-water interface; nutrient uptake;

机译：杜罗河河口;潮间带;沉积物-水界面;养分吸收;

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Temporal and spatial patterns of intertidal sediment-water nutrient and oxygen fluxes in the Douro River estuary, Portugal

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