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首页> 外文会议>International Conference on Energy, Environment and Sustainable Development >Phosphorus distribution in the sediments of Rongcheng Swan Lake, China
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Phosphorus distribution in the sediments of Rongcheng Swan Lake, China

机译：中国荣成天鹅湖沉积物磷分布

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Rongcheng Swan Lake is a small lagoon in eastern Shandong Peninsula, China, whose water quality and ecological environment has deteriorated in recent years. The surface and core sediments were collected from Swan Lake to investigate the concentrations and spatial-vertical distribution of total phosphorus (TP) and various P forms. TP concentrations of the surface sediments (0-10 cm) were low, ranging from 79.15 mg km~(-1) to 565.12 mg kg~(-1). TP concentrations in sediments were relatively high in the northwestern and central lake, and low near the sand spit, which was largely influenced by the anthropogenic inputs and sediment grain size. Inorganic P (IP) was the dominant form of TP, and apatite phosphorus (AP) was the major component of IP in surface sediments. At four of the six sediment profiles, the concentrations of TP, organic P (OP) and non-apatite inorganic phosphorus (NAIP) decreased rapidly with depth in the surface 0-10 cm layers, which was related to the increase of anthropogenic inputs in recent 20-30 years. In conclusion, the sediments in northwestern area had great potential for P release in the alkaline water of Swan Lake.
机译：荣成天鹅湖是山东半岛东部的一个小泻湖，近年来的水质和生态环境恶化。从天鹅湖中收集表面和核心沉积物，以研究总磷（TP）和各种P形式的浓度和空间垂直分布。表面沉积物（0-10cm）的TP浓度低，范围为79.15mg km〜（-1）至565.12mg kg〜（-1）。沉积物中的TP浓度在西北部和中央湖中相对较高，靠近沙唾液，这主要受到人为输入和沉积物粒度的影响。无机P（IP）是TP的主要形式，磷灰石磷（AP）是地表沉积物中IP的主要成分。在六个沉积物中的四种中，TP，有机P（OP）和非磷灰石无机磷（Naip）的浓度在表面0-10cm层中的深度迅速下降，这与人体输入的增加有关近20 - 30年。总之，西北地区的沉积物在天鹅湖碱水中的P释放有很大的潜力。

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