湖泊科学2017，Vol.29Issue(2)：326-333,8.DOI:10.18307/2017.0208
鄱阳湖沉积物和水界面磷的交换通量
Exchange fluxes of phosphorus at the sediment-water interface in Lake Poyang
摘要
Abstract
Through diffusive model methods and laboratory incubation experiments, exchanging fluxes of dissolved total phosphorus (DTP) and dissolved phosphate(DIP) at the sediment-water interface of the Lake Poyang were measured, and their influencing factors were identified. The results show that the exchanging direction of DTP and DIP were unascertainable by applying the two methods, and the sediment is a source of phosphorus in most locations. The average diffusive fluxes of DTP and DIP at the sedi-ment-water interface using diffusive model methods were 0.052 and 0.047 mg/(m2·d), respectively. The exchanging fluxes through the laboratory incubation experiments were higher than that using the diffusive model methods for all sites, and the average exchanging fluxes of DTP and DIP at the sediment-water interface were 0.25 and 0.24 mg/( m2 ·d) , respectively. In addition, the fluxes of DTP and DIP had superior differences under different contents of dissolved oxygen and different temperatures. The ex-change of DTP and DIP increased with the increasing temperature and decreasing dissolved oxygen. The results are useful for the eutrophication control and ecological restoration in the Lake Poyang.关键词
鄱阳湖/磷/沉积物和水界面/交换通量Key words
Lake Poyang/phosphorus/sediment-water interface/exchanging flux引用本文复制引用
向速林,陶术平,吴代赦..鄱阳湖沉积物和水界面磷的交换通量[J].湖泊科学,2017,29(2):326-333,8.基金项目
江西省教育厅科技项目(GJJ150540)和江西省自然科学基金项目(20114BAB213020)联合资助. （GJJ150540）
