Within-lake variability and environmental controls of sediment denitrification and associated N2O production in a shallow eutrophic lake
文献类型：期刊论文
| 作者 | Yao, Lu1,2,3,4; Jiang, Xiaoliang4; Chen, Chengrong1,3; Liu, Guihua4; Liu, Wenzhi4 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 97页码:251-257 |
| ISSN号 | 0925-8574 |
| 关键词 | Eutrophication Denitrification potential Donghu lake Greenhouse gas Nitrogen pollution |
| DOI | 10.1016/j.ecoleng.2016.10.023 |
| 英文摘要 | Excess nitrogen (N) in lakes may lead to eutrophication and many attendant environmental problems such as water quality decline and loss of aquatic biodiversity. Denitrification in lake sediments can alleviate the effects of eutrophication through removal of N to the atmosphere as N2O and N-2. However, N2O contributes to the greenhouse effect and global warming. In this study, we measured three denitrification parameters (i.e., potential denitrification rate, unamended denitrification rate and net N2O production rate) in surface sediments which were collected from 7 sub-lakes of the Lake Donghu, one of the most eutrophic lakes in China. The results showed that a range of water quality and sediment characteristics (e.g., total N and total phosphorus) varied significantly among sub-lakes. The unamended denitrification rate varied between 0.51 and 26.0 ngN g(-1) h(-1), while the N2O production rate ranged from less than 0 to 1.68 ng N g(-1)h(-1). However, there was no significant difference among the sub-lakes in these denitrification parameters. The unamended denitrification rate was positively related to the water NO3 concentration and sediment moisture and bulk density. The findings of the present study suggest that sediments in eutrophic lakes can remove large quantities of N through denitrification and may become a significant source of N2O if the N input is maintained or to increase. (C) 2016 Elsevier B.V. All rights reserved. |
| 资助项目 | National Science Foundation of China[31570535] |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000388580200026 |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/3576]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Liu, Wenzhi |
| 作者单位 | 1.Griffith Univ, Environm Futures Res Inst, Nathan, Qld 4111, Australia 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 3.Griffith Univ, Griffith Sch Environm, Nathan, Qld 4111, Australia 4.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Lu,Jiang, Xiaoliang,Chen, Chengrong,et al. Within-lake variability and environmental controls of sediment denitrification and associated N2O production in a shallow eutrophic lake[J]. ECOLOGICAL ENGINEERING,2016,97:251-257. |
| APA | Yao, Lu,Jiang, Xiaoliang,Chen, Chengrong,Liu, Guihua,&Liu, Wenzhi.(2016).Within-lake variability and environmental controls of sediment denitrification and associated N2O production in a shallow eutrophic lake.ECOLOGICAL ENGINEERING,97,251-257. |
| MLA | Yao, Lu,et al."Within-lake variability and environmental controls of sediment denitrification and associated N2O production in a shallow eutrophic lake".ECOLOGICAL ENGINEERING 97(2016):251-257. |
入库方式： OAI收割
来源：武汉植物园
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