中文摘要：

磷(P) 是所有有机体为精力运输和生长利用的必要营养素。常规铝蓝色方法和导致镁的一起沉淀(魔力)过程被申请溶解的无机的磷(剧降)和在超过 840 件水样品的全部的溶解的磷( TDP )的测量在 2003 和 2005 之间收集了，包括海水( Huanghai 海，华东海，并且北华南海)，从河和河口( Changjiang ， Huanghe ，和倒进 Jiaozhou 海湾的主要的河)流水，地下水(在 d 魔术的方法允许磷分布的调查，为在哪个蘸的系统骑车在常规方法的察觉限制下面。在二个方法之间的比较证明与两个方法获得的集中显著地被相关。当剧降和 TDP 的集中更低时，与二个方法测量的剧降和 TDP 集中的差别更高，暗示在低集中的更低的重制度。当 DOP 集中高时，集中差别随 TDP 的 DOP 的比例的增加增加，它显示与二个方法测量的剧降集中的差异增加。差异显示 P 混合物的作文不同依靠样品消息提供者和水类型；从二个方法之间的差别推断不同的磷混合物水池的存在将是有用的。这研究从包围 Jiaozhou 海湾的雨水和河和河口为样品显示碱易变的混合物的一个水池的潜在的存在；被 Mg 吸附的酸易变的混合物的潜在的存在(哦) 2 为从 Changjiang 河口， Huanghai 海，华东海，和地下水的样品；没被 Mg 吸附的酸易变的混合物的一个实质的水池的潜在的存在(哦) 2 为从 Huanghe 河口，水产业水，华东海海藻的花蕾水，和北华南海的样品。

英文摘要：

Phosphorus （P） is an essential nutrient utilized by all organisms for energy transport and growth. Both the conventional molybdenum-blue method and the magnesium-induced coprecipitation （MAGIC） procedures were applied for the measurement of dissolved inorganic phosphorus （DIP） and total dissolved phosphorus （TDP） in more than 840 water samples collected between 2003 and 2005, including seawater （the Huanghai Sea, the East China Sea, and the northern South China Sea）, water from rivers and estuaries （the Changjiang, the Huanghe, and the major rivers emptying into the Jiaozhou Bay）, groundwater （in the drainage basin surrounding the Jiaozhou Bay）, rain-water, and aquaculture water samples. The MAGIC method allows the investigation of phosphorus distributions and cycling for systems in which DIP is below the detection limits of conventional methods. Comparison between the two methods demonstrated that the concentrations obtained with both methods were significantly correlated. The differences of DIP and TDP concentrations measured with the two methods were higher when the concentrations of DIP and TDP were lower, implying the lower reproducibility at low concentrations. The concentration differences increase with the increase in the proportion of DOP in TDP, which indicates that the discrepancy of DIP concentrations measured with the two methods increases when the DOP concentration is high. The discrepancies indicated that the composition of P compounds differs depending on sample sources and water type; it would be useful to infer the presence of different phosphorus compound pools from differences between the two methods. This study indicates the potential presence of a pool of alkaline-labile compounds for samples from rainwater and rivers and estuaries surrounding the Jiaozhou Bay; the potential presence of acid-labile compounds that were adsorbed by Mg（OH）2 for samples from the Changjiang Estuary, Huanghai Sea, East China Sea, and groundwater; the potential presence of a substant