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1999年8月通过原样培养研究了黄海的桑沟湾和胶州湾潮下带沉积物—海水界面的营养盐通量。结果表明,两个湾的沉积物均向水层释放NH4 N,通量为0.76(桑沟湾)和0.67mmol/m2·d(胶州湾),对水层初级生产所需无机氮的贡献为14%(桑沟湾)和12%(胶州湾);桑沟湾的沉积物对PO4 P有净吸收,通量为-1.17mmol/m2·d,而胶州湾的沉积物释放PO4 P,通量为0.01mmol/m2·d。与其他近岸浅海环境相比,桑沟湾和胶州湾的沉积物—水界面营养盐通量及对水层初级生产的贡献率均处于较低水平。回归统计分析表明,桑沟湾和胶州湾沉积物—水界面的NH4 N通量与沉积物表层的C、N含量正相关,PO4 P通量与沉积物耗氧率和上覆水PO4 P浓度相关。
In August 1999, the nutrient fluxes at the sediment-sea interface of the Sanggou Bay and Jiaozhou Bay in the Yellow Sea were studied through intact cultivation. The results show that both the sediments in the two reservoirs release NH4N to the aquifer at a flux of 0.76 (Sanggou Bay) and 0.67 mmol / m2 · d (Jiaozhou Bay), contributing to the inorganic nitrogen needed for primary production 14% (Sanggou Bay) and 12% (Jiaozhou Bay). Sediments in Sangou Bay had a net absorption of PO 4 P with a flux of -1.17 mmol / m 2 · d, whereas sediments in Jiaozhou Bay released PO 4 P The amount of 0.01mmol / m2 · d. Compared with other coastal shallow sea environments, nutrient flux at the sediment-water interface of Sangou Bay and Jiaozhou Bay and their contribution to the primary production of the water layer are all at a low level. Regression statistical analysis showed that the fluxes of NH4N in the sediment-water interface of the Sangou Bay and Jiaozhou Bay were positively correlated with the C and N contents of the sediment surface. The PO4 P flux was related to the oxygen consumption rate of the sediment and the concentration of PO4P in the overlying water.