Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs
Temporal nutrient dynamics in the Mediterranean Sea in response to anthropogenic inputs
复制标题
地中海对人为输入的时间营养动态变化
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Il
中科院分区：
文献类型：
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作者：
J. Moon;Kitack Lee;T. Tanhua;N. Kress;Il
利用1985年至2014年收集的观测数据（约123，100个数据点）研究了地中海（MED）上层水柱（200-600 m）中硝酸盐（N），磷酸盐（P）浓度和N：P比的时间动态。研究的变量被发现在西部和东部的MED海演变相似。在这两个流域，N浓度增加，在第一部分的观测期间（1985-1998年），和N的时间趋势大致一致的历史河流和大气中的氮输入在欧洲的人口稠密地区，滞后期为20年。1998 - 2005年，氮浓度较高且相对稳定，之后氮浓度逐渐下降，但西部流域下降趋势不明显。特别是，1998年后，氮的恒定然后下降的趋势是一致的，从欧洲大陆的污染物氮排放的历史，允许在20世纪70年代引入的污染物氮的监管后，20年的滞后。两个流域磷的三阶段时间转换与河流磷输入更一致，滞后期为20年。我们的分析表明，最近的动态N和P在上MED海一直敏感的动力学的人为氮和磷输入从大气沉积和河流。
The temporal dynamics of the concentrations of nitrate (N), phosphate (P), and the N:P ratio in the upper water column (200–600 m) of the Mediterranean (MED) Sea were investigated using observational data (~123,100 data points) collected between 1985 and 2014. The studied variables were found to evolve similarly in the western and eastern MED Sea. In both basins, the N concentration increased during the first part of the observational period (1985–1998), and the temporal trend of N was broadly consistent with the history of riverine and atmospheric nitrogen input from populated areas in Europe, with a lag period of 20 years. In subsequent years, the N concentration was high and relatively constant between 1998 and 2005, after which N decreased gradually, although the decreasing trend was indistinct in the western basin. In particular, the trend of constant then declining N after 1998 is consistent with the history of pollutant nitrogen emissions from the European continent, allowing a 20 year lag following the introduction of regulation of pollutant nitrogen in the 1970s. The three‐phase temporal transition in P in both basins was more consistent with the riverine phosphorus input, with a lag period of 20 years. Our analysis indicates that the recent dynamics of N and P in the upper MED Sea has been sensitive to the dynamics of anthropogenic nitrogen and phosphorus input from atmospheric deposition and rivers.
影响因子：
3.2
作者：
Tanhua;Hainbucher;Schroeder;Cardin;Álvarez;Civitarese
通讯作者：
Civitarese