湖泊科学2016，Vol.28Issue(5)：951-960,10.DOI:10.18307/2016.0504
滇池入湖河流磷负荷时空变化及形态组成贡献
Temporal and spatial variations of phosphorus loading and the forms, compositions and contributions in inlet river of Lake Dianchi
摘要
Abstract
The temporal and spatial changes of total phosphorus(TP) and various forms of phosphorus concentration, and the inlet load characteristics were studied in major inlet river of Lake Dianchi. At the same time, the contribution of different forms of phos-phorus from the inlet load was discussed. The results showed:(1) The TP concentrations of the inlet river into Lake Dianchi were between 0.11-1.93 mg/L, and the particulate phosphorus(PP) and dissolved inorganic phosphorus(DIP) forms were the main part. (2) The TP loading of the inlet rivers of Lake Dianchi was 280.51 t/a, and DIP was the main form in most rivers into the lake with an average contribution of 43.48%. PP form into the lake load followed with an average contribution of 31.64%. DOP form into the lake load was relatively low with an average contribution of 24.88%. (3) DIP load into the lake with the higher con-tribution value appeared in dry season (March, April and November), which the average contribution rate reached to 55.30%. Higher values of PP forms into the lake load occurred in January and July, with the average contribution of 56.14%. Change of the DOP load into the lake was relatively low, with the highest value appeared in December and its contribution was 21.85%. (4) The river pollution load into Lake Dianchi not only needs to be considered the contribution of the dissolved inorganic phosphorus into the lake, but also to be paid an attention on the dissolved organic phosphorus and particulate phosphorus loading. During the process of comprehensive improvement of the inlet river loading into the lake, we should take corresponding measures according to different forms of phosphorus loading in different rivers and in different months in order to attempt getting a better effect.关键词
滇池/入湖河流/磷负荷/时空变化/贡献Key words
Lake Dianchi/inlet river/phosphorus loading/spatial and temporal variations/contribution引用本文复制引用
李乐,王圣瑞,王海芳,张蕊,焦立新,丁帅,余佑金..滇池入湖河流磷负荷时空变化及形态组成贡献[J].湖泊科学,2016,28(5):951-960,10.基金项目
国家水体污染控制与治理科技重大专项（2012ZX07102-004）和国家自然科学基金项目（U1202235）联合资助 （）
