Abstract:Phosphorus sorption capacity of the sediments were estimated by the phosphorus sorption index (PSI) and the degree of phosphorus saturation (DPS) of the sediments in the six lakes (QH, QNH, KMH, ZZYH, TRTH, HLJH) of Beijing, China. Relationship between the degree of phosphorus saturation (DPS) and other indicators were analyzed. The risk of potential phosphorus release was also investigated. The phosphorus sorption index ranged from 14.9to 83.3(mg·L)/(100g×mmol), with an average of 34.6(mg·L)/(100g×mmol),P sorption saturation (DPS) ranged from7.97% to 50.5% with an average of 28.9%,and(3)the PSI was significantly and negative correlated with the DPS. The phosphorus adsorption index (PSI) was very significantly and negative correlation with ammonium oxalate extraction of phosphorus and aluminum. The amorphous Fe oxide extracted from ammonium oxalate is the dominant factor in P sorption index. The degree of phosphorus saturation (DPS) was significantly positively correlated with P (Pox) extracted from ammonium oxalate, mainly due to phosphorus sorption in sediments of the original. In addition, the results of the phosphorus release risk index indicated that QH, QNH, ZZYH, TRTH might be in high potential eutrophication risk due to the release of phosphorus from the surfacial sediments.
卢少勇, 王佩, 王殿武, 陈建军. 北京六湖泊表层底泥磷吸附容量及潜在释放风险[J]. 中国环境科学, 2011, 31(11): 1836-1841.
LU Shao-Yong, WANG Pei, WANG Dian-Wu, CHEN Jian-Jun. Phosphorus sorption capacity of the sediment in six lakes of Beijing and risk of potential phosphorus release. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(11): 1836-1841.