The impact of natural water column mixing on iodine and nutrient speciation in a eutrophic anchialine pond (Rogoznica Lake, Croatia)
The impact of natural water column mixing on iodine and nutrient speciation in a eutrophic anchialine pond (Rogoznica Lake, Croatia)
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天然水柱混合对富营养化 anchialine 池塘（克罗地亚罗戈兹尼察湖）中碘和营养物形态的影响
DOI：
10.1016/j.ecss.2013.09.008
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发表时间：
2013
影响因子：
2.8
通讯作者：
I. Ciglenečki
中科院分区：
文献类型：
--
作者：
Vesna Žic;M. Carić;I. Ciglenečki
在2003年和2004年两季研究了天然水柱混合对强富营养化苯胺池无机碘和营养物形态的影响。由于2003年欧洲夏季非常温暖和干燥，该系统在夏末达到了等盐和等温条件。高还原性深水与上层水体的垂直混合产生了中等氧化还原条件和水体内均匀的养分分布。氮的物种形成还表明，硝化细菌和/或古细菌的显著活性是由铵态氮的流入引起的。与此同时，2004年11月下旬水柱接近等盐状态。水柱的部分混合导致溶解氧向下输送，而营养物适度向上流入表层，其中铵的通量足够高以促进硝化作用。无机碘对水柱混合的响应与主要成分和营养物的响应一致。结果表明，尽管物种形成发生了显著变化，但在每次调查中，总无机碘仍保留在系统内。2003年9月翻转后立即形成的氧-缺氧氧化还原条件有利于碘化物的还原，而2004年11月的缓慢混合促进了碘化物的氧化。在这个以沉积影响为主的体系中，深水的一定程度的氧化似乎控制着池塘的无机碘储量。
The effect of natural water column mixing on the inorganic iodine and nutrient speciation in an intensely eutrophicated anchialine pond has been studied in late seasons of 2003 and 2004. As a result of an extremely warm and very dry European summer of 2003 this system attained isohaline and isothermal conditions in late-summer. Vertical mixing between highly reducing deep water with that in the upper layers produced intermediate redox conditions and homogeneous nutrient distribution within the water column. Nitrogen speciation additionally suggests a pronounced activity of nitrifying bacteria and/or archaea arising from an influx of the ammonium nitrogen. Meanwhile, in 2004 the water column attained nearly isohaline conditions late in November. Partial mixing of the water column resulted in downward transport of dissolved oxygen and moderate upward fluxes of nutrients into the surface layers, whereby the flux of ammonium was sufficiently high to promote nitrification. A response of the inorganic iodine to mixing of the water column was in accord with those of major constituents and nutrients. The results demonstrate that, in spite of marked changes in speciation, total inorganic iodine remained preserved within the system over each survey. Oxic to hypoxic redox conditions formed immediately after the overturn in September 2003 favoured iodate reduction, while slow mixing in November 2004 promoted iodide oxidation. In this system dominated by the sedimentary influence a degree of oxygenation of deep water seems to control the inorganic iodine inventory for the pond.
影响因子：
3
作者：
Kamyshny, Alexey, Jr.;Zerkle, Aubrey L.;Ferdelman, Timothy G.
通讯作者：
Ferdelman, Timothy G.
影响因子：
3
作者：
Chance, Rosie;Weston, Keith;Rossetti, Helen
通讯作者：
Rossetti, Helen
DOI：
10.1016/j.dsr2.2011.02.002
发表时间：
2011-12-15
影响因子：
3
作者：
Bluhm, K.;Croot, P. L.;Lochte, K.
通讯作者：
Lochte, K.