农业环境科学学报Issue(9)：1804-1811,8.DOI:10.11654/jaes.2015.09.025
太湖流域农村黑臭河流表层沉积物中磷形态的分布特征
Distribution Characteristics of Phosphorus Fractions in Surface Sediments from a Rural Malodorous Black River in Taihu Lake Watershed
摘要
Abstract
In recent years, water eutrophication in the rural rivers in the Talhu Lake watershed has caused increasing public concerns. How-ever, there is little information available on phosphorus fractions in the surface sediments. Herein, thirteen surface sediment samples were collected from the upper reach till the lower reach along the north section of Zhangxia River near Zhoutie Town, Yixing, a rural malodorous black river running into the Taihu Lake. Phosphorous fractionation was preformed following the SMT protocol. Bio-availability of phospho-rous fractions was also assessed. The concentrations of TP were very high, with an average concentration of 2 598.30 mg·kg-1. Inorganic P (IP)was the main fraction of TP, accounting for 72.95%~85.32%. Ca-P was 69.63%~84.03%of IP, which ranged between 1 064.09 mg·kg-1 and 2 484.84 mg·kg-1. TP was significantly correlated with Ca-P(P<0.01, n=13). Ca-P and Fe/Al-P had significant correlation with OP and IP(P<0.01, n=13), respectively. TP was also significantly and positively correlated with Fe/Al-P and OP(P<0.01, n=13). Our results suggest that high TP in surface sediments is due to both heavy exogenous P inputs and progressively intensified endogenous P pollution.关键词
磷形态/分布特征/表层沉积物/黑臭河流Key words
phosphorous fractions/distribution characteristics/surface sediment/malodorous black river分类
资源环境引用本文复制引用
冀峰,王国祥,韩睿明,李时银,赵艳萍..太湖流域农村黑臭河流表层沉积物中磷形态的分布特征[J].农业环境科学学报,2015,(9):1804-1811,8.基金项目
国家自然科学基金项目（41173078）；国家水体污染控制与治理科技重大专项（2012ZX07101-008-02）；江苏省太湖水环境综合治理科研项目 （）
