(Table 8) Isotopic composition of organic carbon in suspended matter and percentage of newly formed organic carbon in total organic carbon content in the fluffy layer of the Dvina Bay, White Sea in July 2010@en

Calculations were made according to the isotope mass balance equation: 100A=Bx+(100-x)C, where A is d13C-Corg of sediment; i' is d13C-Corg of microorganism biomass (-20.0 per mil); i¡ is d13C-Corg in suspended matter of the surface water layer ; x is percentage of newly formed Corg in total Corg content in the fluffy layer.本计算依据同位素质量平衡方程开展：100A = Bx + (100−x)C，其中A为沉积物的总有机碳碳13同位素比值（d13C-Corg）；i'为微生物生物量的总有机碳碳13同位素比值（-20.0‰）；i¡为表层水体悬浮颗粒物中的总有机碳碳13同位素比值；x为絮状层中新生有机碳（Corg）占总有机碳含量的百分比。