Sieved Transport and Redistribution of Bioavailable Phosphorus from Watershed with Complex River Networks to Lake
文献类型：期刊论文
| 作者 | Yi, Qitao; Chen, Qiuwen; Shi, Wenqing; Lin, Yuqing; Hu, Liuming |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017-09-19 |
| 卷号 | 51期号:18页码:10379-10386 |
| 英文摘要 | An innovative approach was developed to reveal phosphorus (P) transport and redistribution in large and complex river networks in the Lake Taihu basin by establishing the relations between sediment P spatial distribution and P sorption behavior on particles with different grain size, sorted by hydrodynamics. The sediment P fractionation composition changed greatly across the basin, where 69% consisted of acid-soluble fractions (HCl-P) in upstream rivers while 70% was in fractions associated with reducible metal hydroxides (BD-P) and amorphous hydroxides (NaOH25-P) in downstream rivers. Fine particles enriched in BD-P and NaOH25-P fractions tended to sorb liberated P during the resuspension process, and fine particles were more easily delivered downstream toward the lake, forming a sieved transport of P in the river networks. This will lead to a great potential for sediment P release when environmental anoxia develops in the sediments or high pH occurs in the sediment surface during intensive algal blooms in the shallow lake. Reduction of external P from point sources from urbanized areas is an important requirement at the basin scale; however, long-term efforts are needed to restore aquatic macrophytes in the lake, which would decrease P recycling rates at the water-sediment interface. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39558]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yi, Qitao,Chen, Qiuwen,Shi, Wenqing,et al. Sieved Transport and Redistribution of Bioavailable Phosphorus from Watershed with Complex River Networks to Lake[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(18):10379-10386. |
| APA | Yi, Qitao,Chen, Qiuwen,Shi, Wenqing,Lin, Yuqing,&Hu, Liuming.(2017).Sieved Transport and Redistribution of Bioavailable Phosphorus from Watershed with Complex River Networks to Lake.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(18),10379-10386. |
| MLA | Yi, Qitao,et al."Sieved Transport and Redistribution of Bioavailable Phosphorus from Watershed with Complex River Networks to Lake".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.18(2017):10379-10386. |
入库方式： OAI收割
来源：生态环境研究中心
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