【摘要】 研究了胶州湾柱状沉积物磷的存在形态、浓度水平及其分布特征。结果表明3种形态磷的浓度为:总磷(TP)12.78μmol·g-1;无机磷(IP)9.60μmol·g-1;有机磷(OP)3.18μmol·g-1。无机态磷占总磷的75%,为沉积物中磷的主要存在形式。磷在柱状沉积物中的分布呈上层低(0～10cm),中间层段(66～90cm)略高,155cm以深层段浓度稳定且较低的态势,尤以TP和IP表现明显。磷在上层沉积物中浓度水平较低的现象可能与近年来入湾河流磷的输入量较低有关。更多还原

【Abstract】 The concentrations and distribution of the TP,IP,and OP in core sediment of Jiaozhou Bay were examined.The average concentrations of the TP,IP,and OP in sediment are 12.78 mol.g-1,9.60μmol.g-1,and 3.18μmol.g-1respectively.IP is the main form of phosphorus in core sediment of Jiaozhou Bay.In terms of vertical distribution,the concen-trations of TP and IP changed remarkably with depth increased,while that of OP has little change in relation to depth.The concentrations of three forms phosphorus in upper layer sediment samples were at low level due to the reduction of river water inputted.更多还原