Abstract:Total phosphorus (TP), inorganic-phosphorus (IP), organic-phosphorus (OP), Fe/Al-bound phosphorus (Fe/Al- P) and Ca-bound phosphorus (Ca- P) in sediments of Yanghe Reservoir and in soil of its basin were measured using the standard measurement and test (SMT) procedure. The general mean content variation trends of total phosphorus (TP), total nitrogen (TN) and organic matter (OM) in the soil and sediments were stream sediments> reservoir sediments>soil, while the TP mean content changed little during the migration process. Nutrients enter Yanghe Reservoir not only by soil runoff and stream migration, but also the role of sediment release is obvious. The nutrients contents in surface sediment were high according the results of the column sediments, and the contents of TP, TN and OM decreased with the increase of sediment depth from the surface to 16cm, and then held on line below 16cm, which indicated that nitrogen and phosphorus pollution in the sediments was primarily on the surface. The IP was the major phosphorus species in the soil and sediments, which accounted for 46%~79% of the TP; and the Ca-P was the major phosphorus species in the study area, and accounted for 22%~68% of TP, which related to the geological-geochemical characteristics of the Yanghe Reservoir. The TP in the soil was original mainly from Ca-P, which relate to the geological background in this region. The TP in sediment from the stream was original mainly from Fe/Al-P, which relate to the industrial and human pollution in this basin. The TP in sediment from Yanghe Reservoir was original mainly from the OP, which indicate that the eutrophication of Yanghe reservoir relates to the industrial, domestic pollution and agricultural non-point pollution in this basin.
张丽媛, 王圣瑞, 储昭升, 杨苏文, 金相灿, 包亮, 张福林, 倪兆奎. 洋河水库流域土壤与库区沉积物中磷形态特征研究[J]. 中国环境科学, 2010, 30(11): 1529-1536.
ZHANG Li-Yuan, WANG Sheng-Rui, CHU Zhao-Sheng, YANG Su-Wen, JIN Xiang-Can, BAO Liang, ZHANG Fu-Lin, NI Zhao-Kui. Distribution characteristics of phosphorus in sediment of Yanghe Reservoir and in soil of its basin.. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(11): 1529-1536.