| ZHANG Naixing,SONG Jinming,CAO Conghua,REN Rongzhu,WU Fengcong,ZHANG Shaoping,SUN Xu. 2012. The influence of macronitrogen (NO3- and NH4+) addition with Ulva pertusa on dissolved inorganic carbon system. Acta Oceanologica Sinica, (1):73－82 |
| The influence of macronitrogen (NO3- and NH4+) addition with Ulva pertusa on dissolved inorganic carbon system |
| The influence of macronitrogen (NO3- and NH4+) addition with Ulva pertusa on dissolved inorganic carbon system |
| Received:November 26, 2010 Revised:March 02, 2011 |
| DOI：10.1007/s13131-012-0178-z |
| Key words:dissolved inorganic carbon algae simulated experiments Ulva pertusa macronitrogen the Jiaozhou Bay |
| 中文关键词: dissolved inorganic carbon algae simulated experiments Ulva pertusa macronitrogen the Jiaozhou Bay |
| 基金项目:The Key Laboratory of State Oceanic Administration for Marine Ecology and Environmental Science and Engineering, State Oceanic Administration under contract No. MESE-2008-07; the Open Fund of North China Sea Branch, State Oceanic Administration under contract No. 2010A01; the Open Fund of State Oceanic Administration of China under contract No. 2010503; the Open Fund of Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences under contract No. KLMEES201003. |
| Author Name | Affiliation | E-mail | | ZHANG Naixing | North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China | Zhangnaix@mails.gucas.ac.cn | | SONG Jinming | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China | | | CAO Conghua | North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China | | | REN Rongzhu | North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China | | | WU Fengcong | North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China | | | ZHANG Shaoping | North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China | | | SUN Xu | Binzhou Technical College, Binzhou 256600, China | |
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| Abstract: |
| The influence of macronitrogen (NO3- and NH4+) addition with Ulva pertusa on dissolved inorganic carbon system in seawater was studied. The results indicate that p (CO2) and HCO3- concentration decrease significantly, while pH and CO32- concentration increase significantly. When the concentration of NO3- was less than 71 μmol/dm3 or NH4+ was less than 49.7 μmol/dm3, dissolved inorganic carbon (DIC) absorption rates by Ulva pertusa generally increased with the increasing of nitrogen concentration. The DIC decreased 151 μmol/dm3 with the addition of 71 μmol/dm3 NO3- and decreased 232 μmol/dm3 with the addition of 49.7 μmol/dm3 NH4+ after the experiment compared with DIC measured without nitrogen addition. A significant negative-correlation was found between △c (DIC) and growth rate (μ) of Ulva pertusa (r=-0.91, P <0.000 1, n=11). NH4+ had more influence on the species of inorganic carbon system than NO3-. |
| 中文摘要: |
| The influence of macronitrogen (NO3- and NH4+) addition with Ulva pertusa on dissolved inorganic carbon system in seawater was studied. The results indicate that p (CO2) and HCO3- concentration decrease significantly, while pH and CO32- concentration increase significantly. When the concentration of NO3- was less than 71 μmol/dm3 or NH4+ was less than 49.7 μmol/dm3, dissolved inorganic carbon (DIC) absorption rates by Ulva pertusa generally increased with the increasing of nitrogen concentration. The DIC decreased 151 μmol/dm3 with the addition of 71 μmol/dm3 NO3- and decreased 232 μmol/dm3 with the addition of 49.7 μmol/dm3 NH4+ after the experiment compared with DIC measured without nitrogen addition. A significant negative-correlation was found between △c (DIC) and growth rate (μ) of Ulva pertusa (r=-0.91, P <0.000 1, n=11). NH4+ had more influence on the species of inorganic carbon system than NO3-. |
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