Zhou Q, Gibson C E, Zhu Y
Department of Environmental Sciences, Zhejiang University, Hangzhou, People's Republic of China.
Chemosphere. 2001 Jan;42(2):221-5. doi: 10.1016/s0045-6535(00)00129-6.
The bioavailability of phosphorus (P) in sediments from West Lake and Lake Tai (China) and Lough Erne (Northern Ireland) was evaluated using total P (TP), water soluble P (WSP), readily desorbable P (RDP), algal available P (AAP) and Olsen-P. The results indicated that the TP content, the amounts of phosphorus extracted by each method and their proportions to TP varied widely between sediments of the three lakes. TP and chemical extractable phosphorus in the sediments of Lough Erne were considerably higher than those of the two lakes in China. Although TP in the West Lake sediments was similar to that of Lake Tai, the extractable phosphorus data suggested that the bioavailability of P in West Lake sediments was higher than that in sediments from Lake Tai. Nevertheless, the rank order of extraction efficiency was the same in all lakes and the amount extracted was in the sequence AAP > Olsen-P > WSP > RDP. There was a good correlation between extracted and TP in all the methods examined.
利用总磷（TP）、水溶性磷（WSP）、易解吸磷（RDP）、藻类可利用磷（AAP）和 Olsen 磷，对中国西湖和太湖以及北爱尔兰厄恩湖沉积物中磷（P）的生物有效性进行了评估。结果表明，三个湖泊沉积物中的总磷含量、各方法提取的磷量及其占总磷的比例差异很大。厄恩湖沉积物中的总磷和化学可提取磷显著高于中国的两个湖泊。虽然西湖沉积物中的总磷与太湖相似，但可提取磷数据表明，西湖沉积物中磷的生物有效性高于太湖沉积物。然而，所有湖泊的提取效率排序相同，提取量顺序为 AAP＞Olsen 磷＞WSP＞RDP。在所研究的所有方法中，提取量与总磷之间均具有良好的相关性。
