Dissimilatory nitrate reduction processes in typical chinese paddy soils: rates, relative contributions, and influencing factors
文献类型：期刊论文
| 作者 | Shan, Jun1; Zhao, Xu1; Sheng, Rong2,3; Xia, Yongqiu1; Ti, Chaopu1; Quan, Xiaofei1,4; Wang, Shuwei1,4; Wei, Wenxue2,3; Yan, Xiaoyuan1 |
| 刊名 | Environmental science & technology
 |
| 出版日期 | 2016-09-20 |
| 卷号 | 50期号:18页码:9972-9980 |
| ISSN号 | 0013-936X |
| DOI | 10.1021/acs.est.6b01765 |
| 通讯作者 | Yan, xiaoyuan(yanxy@issas.ac.cn) |
| 英文摘要 | Using soil slurry-based n-15 tracer combined with n-2/ar technique, the potential rates of denitrification, anaerobic ammonium oxidation (anammox), and dissimilatory nitrate reduction to ammonium (dnra), and their respective contributions to total nitrate reduction were investigated in 11 typical paddy soils across china. the measured rates of denitrification, anammox, and dnra varied from 2.37 to 8.31 nmol n g(-1) h(-1), 0.15 to 0.77 nmol n g(-1) h(-1) and 0.03 to 0.54 nmol n g(-1) h(-1), respectively. the denitrification and anammox rates were significantly correlated with the soil organic carbon content, nitrate concentration, and the abundance of nosz genes. the dnra rates were significantly correlated with the soil c/n, extractable organic carbon (eoc)/no3- ratio, and sulfate concentration. denitrification was the dominant pathway (76.75-92.47%), and anammox (4.48-9.23%) and dnra (0.54-17.63%) also contributed substantially to total nitrate reduction. the n loss or n conservation attributed to anammox and dnra was 4.06-21.24 and 0.89-15.01 g n m(-2) y(-1), respectively. this study reports the first simultaneous investigation of the dissimilatory nitrate reduction processes in paddy soils, highlighting that anammox and dnra play important roles in removing nitrate and should be considered when evaluating n transformation processes in paddy fields. |
| WOS关键词 | ANAEROBIC AMMONIUM OXIDATION ; INLET MASS-SPECTROMETER ; RIBOSOMAL-RNA GENES ; NITROUS-OXIDE ; AGRICULTURAL SOILS ; AQUATIC ECOSYSTEMS ; OXIDIZING BACTERIA ; ANAMMOX BACTERIA ; MARINE-SEDIMENTS ; DENITRIFICATION |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| WOS类目 | Engineering, Environmental ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000384037900021 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375809 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yan, Xiaoyuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Inst Subtrop Agr, Soil Mol Ecol Sect, Key Lab Agroecol Proc Subtrop Reg, Changsha 410125, Hunan, Peoples R China 3.Chinese Acad Sci, Inst Subtrop Agr, Soil Mol Ecol Sect, Taoyuan Agroecosyst Res Stn, Changsha 410125, Hunan, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shan, Jun,Zhao, Xu,Sheng, Rong,et al. Dissimilatory nitrate reduction processes in typical chinese paddy soils: rates, relative contributions, and influencing factors[J]. Environmental science & technology,2016,50(18):9972-9980. |
| APA | Shan, Jun.,Zhao, Xu.,Sheng, Rong.,Xia, Yongqiu.,Ti, Chaopu.,...&Yan, Xiaoyuan.(2016).Dissimilatory nitrate reduction processes in typical chinese paddy soils: rates, relative contributions, and influencing factors.Environmental science & technology,50(18),9972-9980. |
| MLA | Shan, Jun,et al."Dissimilatory nitrate reduction processes in typical chinese paddy soils: rates, relative contributions, and influencing factors".Environmental science & technology 50.18(2016):9972-9980. |
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来源：中国科学院大学
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