| 引用本文: | 孙小静,张战平,朱广伟,秦伯强.太湖水体中胶体磷含量初探.湖泊科学,2006,18(3):231-237. DOI:10.18307/2006.0306 |
| SUN Xiaojing,ZHANG Zhanping,ZHU Guangwei,QIN Boqiang.Content of colloidal phosphorus in water of Lake Taihu, China. J. Lake Sci.2006,18(3):231-237. DOI:10.18307/2006.0306 |
|
| 摘要: |
| 为了探明太湖水体中胶体磷含量,更深入认识营养盐在大型浅水湖泊中的循环过程和机理,分别从太湖的梅梁湾和贡湖湾两个不同类型的湖区采集水样,利用切向流超滤方法分离出胶体物质,对太湖水体中胶体磷含量进行了初步研究.结果表明:太湖水体春季胶体磷含量在0.017-0.029mg/L间,其中梅梁湾藻型湖区胶体磷含量范围是0023-0.029mg/L,贡湖湾草型湖区胶体磷含量在0.017-0.022mg/L间.梅梁湾水体胶体磷占总磷比例平均为28.6%;而贡湖湾胶体磷占总磷比例平均达到39.3%.梅梁湾水体真溶解态磷含量显著高于贡湖湾水体,达贡湖湾的4倍.与澳大利亚的17个湖泊相比,太湖属胶体磷含量偏低的湖泊,但相对于海洋的研究结果,太湖胶体磷含量明显偏高. |
| 关键词: 胶体 磷 切向流超滤 太湖 浅水湖泊 |
| DOI：10.18307/2006.0306 |
| 分类号: |
| 基金项目:国家自然科学基金项目(40203007);中国科学院知识创新工程重大项目(KZCX1-SW-12);国家“十五”重大科技专项(863计划)(2002AA601011)共同资助 |
|
| Content of colloidal phosphorus in water of Lake Taihu, China |
|
SUN Xiaojing1,2, ZHANG Zhanping3, ZHU Guangwei1, QIN Boqiang1
|
|
1.Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;2.Graduate School of Chinese Academy of Sciences, Beijing 100039, P. R. China;3.College of Environmental and Resource Sciences, Zhejiang University,Hangzhou 310028, P. R. China
|
| Abstract: |
| Concentration of colloidal phosphorus in Lake Taihu, China, was determined in this paper. Lake water was sampled in April, 2005. Cross-flow filtration technique was applied to extract colloid from the water. The result shows that colloidal phosphorus concentration in Lake Taihu varied from 0.017 to 0.029 mg/L. In Meiliang Bay, an algae type zone, it is 0.023-0.029 mg/L; while in Gonghu Bay, a grass type zone, it is 0.017-0.022 mg/L. The colloidal phosphorus account for 28.6% of total phosphorus (TP) in Meiliang Bay, and account for 39.3% of total phosphorus (TP) in Gonghu Bay, respectively. The true-dissolved phosphorus in Meiliang Bay is four times of that in Gonghu Bay. |
| Key words: Colloid phosphorus cross-flow ultrafiltration Lake Taihu shallow lake |
