Dissolved nitrous oxide and emission relating to denitrification across the Poyang Lake aquatic continuum
文献类型：期刊论文
| 作者 | Wang, Huaxin1,3; Zhang, Lu2; Yao, Xiaolong2; Xue, Bin2; Yan, Weijin1,2
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
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| 出版日期 | 2017-02-01 |
| 卷号 | 52页码:130-140 |
| 关键词 | Nitrous oxide gas Nitrogen Dinitrogen gas Denitrification Natural wetlands Poyang Lake |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/j.jes.2016.03.021 |
| 通讯作者 | Yan, Weijin(yanwj@igsnrr.ac.cn) |
| 英文摘要 | Most aquatic ecosystems contribute elevated N2O to atmosphere due to increasing anthropogenic nitrogen loading. To further understand the spatial heterogeneity along an aquatic continuum from the upriver to wetland to lake to downriver, the study was conducted on spatial variations in N2O emission along Poyang Lake aquatic continuum during the flood season from 15 July 2013 to 10 August 2013. The results showed the N2O concentrations, the ratio of N2O/dinitrogen (N-2) gases production, N2O emission and denitrification rates ranged from 0.10 to 1.11 mu g N/L, -0.007% to 0.051%, -9.73 to 127 mu g N/m(2)/hr and 1.33 x 10(4) to 31.9 x 10(4) mu g N-2/m(2)/hr, respectively, across the continuum. The average N2O concentrations, the ratio of N2O/N-2 and N2O emission was significantly lower in wetlands as compared to the rivers and lake (p < 0.01). The significantly high denitrification rate and low N2O emission together highlighted that most N2O can be converted into N-2 via near complete denitrification in the Poyang Lake wetlands. Our study suggests that the wetlands might impact N2O budget in an integrated aquatic ecosystems. Moreover, N2O emission from different aquatic ecosystem should be considered separately when quantifying the regional budget in aquatic ecosystem. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS关键词 | GREENHOUSE-GAS EFFLUXES ; COASTAL-PLAIN WETLANDS ; CONTRASTING LAND-USES ; N2O EMISSIONS ; POTENTIAL DENITRIFICATION ; TRANSFER VELOCITY ; RIVER ESTUARY ; CHINA ; SEDIMENTS ; FLUXES |
| 资助项目 | Research Program of State Key Laboratory of Lake Science and Environment[2012SKL012] ; CAS Key Project[KJZD-EW-TZ-G10] ; National Basic Research Program (973) of China[2012CB417005] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000394947500015 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Research Program of State Key Laboratory of Lake Science and Environment ; CAS Key Project ; National Basic Research Program (973) of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/64807]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yan, Weijin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Huaxin,Zhang, Lu,Yao, Xiaolong,et al. Dissolved nitrous oxide and emission relating to denitrification across the Poyang Lake aquatic continuum[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2017,52:130-140. |
| APA | Wang, Huaxin,Zhang, Lu,Yao, Xiaolong,Xue, Bin,&Yan, Weijin.(2017).Dissolved nitrous oxide and emission relating to denitrification across the Poyang Lake aquatic continuum.JOURNAL OF ENVIRONMENTAL SCIENCES,52,130-140. |
| MLA | Wang, Huaxin,et al."Dissolved nitrous oxide and emission relating to denitrification across the Poyang Lake aquatic continuum".JOURNAL OF ENVIRONMENTAL SCIENCES 52(2017):130-140. |
入库方式： OAI收割
来源：地理科学与资源研究所
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