Zhuang Wen, Gao Xuelu, Zhang Yong, Xing Qianguo, Tosi Luigi, Qin Song
Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; College of City and Architecture Engineering, Zaozhuang University, Zaozhuang, Shandong 277160, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China.
Mar Pollut Bull. 2014 Jun 15;83(1):343-51. doi: 10.1016/j.marpolbul.2014.03.040. Epub 2014 Apr 18.
Phosphorus (P) in surface sediments of the Laizhou Bay (LB) and the coastal waters around the Zhangzi Island (ZI) was analyzed. Six forms of P were separated - exchangeable or loosely sorbed P (Ads-P), aluminum-bound P (Al-P), iron-bound P (Fe-P), authigenic apatite plus CaCO3-bound P plus biogenic apatite (Ca-P), detrital apatite plus other inorganic P (De-P) and organic P (OP). The average contents of P in the LB were in the order: De-P>OP>Ca-P>Fe-P>Ads-P>Al-P; in the ZI, the corresponding order was De-P>OP>Fe-P>Ca-P>Ads-P>Al-P. Due to the high nutrient loadings from the surrounding rivers, TP contents in sediments of the LB were higher than in those of the ZI. The potential bio-available P (Ads-P and OP) accounted for 14.7% and 24.2% of TP in sediments of the LB and the ZI, respectively.
对莱州湾（LB）及獐子岛（ZI）周边近岸海域表层沉积物中的磷（P）进行了分析。磷被分离为六种形态——可交换态或松散吸附态磷（Ads-P）、铝结合态磷（Al-P）、铁结合态磷（Fe-P）、自生磷灰石加碳酸钙结合态磷加生物源磷灰石（Ca-P）、碎屑磷灰石加其他无机磷（De-P）和有机磷（OP）。莱州湾沉积物中磷的平均含量顺序为：De-P>OP>Ca-P>Fe-P>Ads-P>Al-P；在獐子岛，相应顺序为De-P>OP>Fe-P>Ca-P>Ads-P>Al-P。由于周边河流的高营养负荷，莱州湾沉积物中的总磷含量高于獐子岛沉积物中的总磷含量。潜在生物可利用磷（Ads-P和OP）分别占莱州湾和獐子岛沉积物中总磷的14.7%和24.2%。
