中文摘要：

磷周期在 Sanggou 海湾(SGB ) 在 2013-2014 期间被学习，它是在北中国的一个典型水产业区域。测量的磷的形式包括溶解的无机的磷(剧降) ，溶解的器官的磷(DOP ) ，微粒无机的磷(果仁) ，和微粒器官的磷(流行音乐) 。剧降和果仁是全部的溶解的磷(TDP ) 和全部的微粒磷(TPP ) 的主要形式，分别地代表 51%-75% 和 53%-80% 。磷形式的集中和分布相对水产业周期，河的输入，和水动力学条件在季节之中变化。在秋天，剧降的集中比在另外的季节显著地高(P < 0.01 ) ，并且更高的集中在海湾的西方被发现。在冬季和春天，磷集中比在西方在海湾的东方是更高的。在夏天，磷形式的分布是一致的。一项初步的磷预算被开发，并且证明 SGB 是磷的一个网水池。 1.80 的一个总数?牡敳慮整愠?桴?潧瑥楨整眯瑡牥椠瑮牥慦散?桔?灵慴敫琠敲摮?湡?灳'虘X楴湯漠?桴獥?睴?潣灭湯湥獴眠牥?敲慬整?楷桴洠汯牡愠獲湥瑡????慲楴?猠汯瑵潩???潣瑮捡?牯敤?湡?条湩?楴敭??敭慴瑳'L敬嬠何猼扵资????猼'T资???獁????猯'T?猼'T资???摩愠摮朠祬楣敮挠湯散瑮慲楴湯?条牡瀠牥散瑮条?愠摮瀠?琠?敧敮慲整愠挠敨業慣汬?敤楦敮?業楮慭?敭楤浵漠?桷捩?灳'虝娹骅碑啴屘∧??映牵畦?敧敮慲整?桴?潭瑳爠扯獵?楦慬敭瑮瑡潩?丠硥?眠?硥浡湩摥琠敨挠灡捡瑩?景欠瑥'覝w汯?潴椠桮扩瑩琠敨映牯慭楴湯漠??映牵畦?祭散楬污映牯??瑯?潬?湡? 楨

英文摘要：

The phosphorus cycle is studied during 2013–2014 in the Sanggou Bay（SGB）, which is a typical aquaculture area in northern China. The forms of measured phosphorus include dissolved inorganic phosphorus（DIP）, dissolved organic phosphorus（DOP）, particulate inorganic phosphorus（PIP）, and particulate organic phosphorus（POP）.DIP and PIP are the major forms of total dissolved phosphorus（TDP） and total particulate phosphorus（TPP）,representing 51%–75% and 53%–80%, respectively. The concentrations and distributions of phosphorus forms vary among seasons relative to aquaculture cycles, fluvial input, and hydrodynamic conditions. In autumn the concentration of DIP is significantly higher than in other seasons（P〈0.01）, and higher concentrations are found in the west of the bay. In winter and spring the phosphorus concentrations are higher in the east of the bay than in the west. In summer, the distributions of phosphorus forms are uniform. A preliminary phosphorus budget is developed, and shows that SGB is a net sink of phosphorus. A total of 1.80×10^7 mol/a phosphorus is transported into the bay. The Yellow Sea is the major source of net input of phosphorus（61%）, followed by submarine groundwater discharge（SGD）（27%）, river input（11%）, and atmospheric deposition（1%）. The main phosphorus sink is the harvest of seaweeds（Saccharina japonica and Gracilaria lemaneiformis）, bivalves（Chlamys farreri）,and oysters（Crassostrea gigas）, accounting for a total of 1.12×10^7 mol/a. Burial of phosphorus in sediment is another important sink, accounting for 7.00×10^6 mol/a. Biodeposition by bivalves is the major source of phosphorus in sediment, accounting for 54% of the total.