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	Distributions of phosphorus fractions in the sediments of a river-lake system: a case study in Huai River catchment area, China
	Piao J. Q.; Tang, C. Y.; Song, X. F.
	2015
关键词	grain size phosphorus fractions river-lake system sediments sluice shallow lakes extraction transport phosphate delivery impact basin forms dams
英文摘要	Phosphorus (P) forms, with respect to sediment characteristics, and an in-stream sluice were studied in the river-lake system, Huai River catchment area, China. The mean of total P in sediments in the mainstream of the Huai River was higher than that in the Hongze Lake. It was found that P fractions varied in the sediments throughout the river and lake. Detrital-P was the dominant P fraction in the mainstream and organic P and detrital-P were the dominant P fractions in the lake, which could indicate: biologically available and non-biologically available forms. Useful information for the interpretation of P fractions could also be obtained from major sediment characteristics. Whether the relations between P fractions and grain size characteristics were significant or weak, 0.125 mm was a threshold grain size for P fraction distribution in sediment. In addition, the Bengbu Sluice, one of the most important in-stream facilities in the Huai River catchment area, regulated not only the transport of P in sediments upstream and downstream of the sluice, but also the distribution of P fractions in the river-lake system. Therefore, it was confirmed that nutrient loadings could be prevented from reaching the watershed, as well as improved ecological diversity by integrating sluice operation.
出处	Water Science and Technology
卷	72
期	5
页	824-834
收录类别	SCI
语种	英语
ISSN号	0273-1223
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/38474]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Piao J. Q.,Tang, C. Y.,Song, X. F.. Distributions of phosphorus fractions in the sediments of a river-lake system: a case study in Huai River catchment area, China. 2015.

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