δ¹³C and d15N stable isotopes values, total nitrogen and C/N ratios of sedime...
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Rising stable nitrogen isotope ratios (d15N) in dated sediment records of the German Bight/SE North Sea track river-induced coastal eutrophication over the last 2 centuries....
北海南部海域与德国湾的定年沉积物记录中，稳定氮同位素比值（d15N）呈上升趋势，该指标追踪了近两个世纪以来河流诱导的近岸富营养化演化过程……
