Denitrification in qi' ao island coastal zone, the zhujiang estuary in china
文献类型：期刊论文
| 作者 | Wang Hu1,2,3; Zhou Huaiyang2; Peng Xiaotong2; Yang Qunhui2; Qin Chaomei1; Yin Xijie1,3; Chen Guangqian1 |
| 刊名 | Acta oceanologica sinica
 |
| 出版日期 | 2009 |
| 卷号 | 28期号:1页码:37-46 |
| 关键词 | Denitrification N(2) flux Sod Inorganic nitrogen compound Qi' ao island coastal zone Zhujiang estuary |
| ISSN号 | 0253-505X |
| 通讯作者 | Zhou huaiyang(zhouhy@tongji.edu.cn) |
| 英文摘要 | Samples of sediments, and the overlying water were collected in the qi'ao island coastal zone, the zhujiang (pearl river) estuary (zf). denitrification rates, sediment oxygen demand (sod), and fluxes of inorganic nitrogen compounds were investigated with n(2) flux method, using a self-designed continuous flow through and auto-sampling system. the results indicate that the denitrification rates varied between 222 and 908 mu mol/(m(2) center dot h) with an average of 499 mu mol/(m(2) center dot h). during incubation, the sediments absorbed dissolved oxygen in the overlying water with sod ranging front 300 to 2 363 mu mol/(m(2) center dot h). the denitrification rates were highly correlated with the sol) (r(2) = 0.77) regardless of the no(3)(-) + no(2)(-) concentrations in the overlying water, organic carbon contents in sediments and water temperature, suggesting that the sod was probably the main environmental factor controlling the denitrification in the qi'ao island coastal zone. there was a net flux of no(3)(-) + no(2)(-) into the sediments front the overlying water. the nh(4)(+) flux front sediments into water as the result of mineralization was between 12.3 quit 210.3 mu mol/(m(2) center dot h) which seems limited by both organic carbon content in sediment and dissolved oxygen concentration in the overlying water. |
| WOS关键词 | ISOTOPE PAIRING TECHNIQUE ; NITROUS-OXIDE PRODUCTION ; INLET MASS-SPECTROMETRY ; MARINE-SEDIMENTS ; DIURNAL-VARIATION ; ORGANIC-MATTER ; N2O PRODUCTION ; RIVER ESTUARY ; FRESH-WATER ; NITRIFICATION |
| WOS研究方向 | Oceanography |
| WOS类目 | Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000264887300004 |
| 出版者 | CHINA OCEAN PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2403797 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou Huaiyang |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 2.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Hu,Zhou Huaiyang,Peng Xiaotong,et al. Denitrification in qi' ao island coastal zone, the zhujiang estuary in china[J]. Acta oceanologica sinica,2009,28(1):37-46. |
| APA | Wang Hu.,Zhou Huaiyang.,Peng Xiaotong.,Yang Qunhui.,Qin Chaomei.,...&Chen Guangqian.(2009).Denitrification in qi' ao island coastal zone, the zhujiang estuary in china.Acta oceanologica sinica,28(1),37-46. |
| MLA | Wang Hu,et al."Denitrification in qi' ao island coastal zone, the zhujiang estuary in china".Acta oceanologica sinica 28.1(2009):37-46. |
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来源：中国科学院大学
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