The influence of macronitrogen (NO3- and NH4+) addition with Ulva pertusa on dissolved inorganic carbon system

ZHANG Naixing; SONG Jinming; CAO Conghua; REN Rongzhu; WU Fengcong; ZHANG Shaoping; SUN Xu

doi:10.1007/s13131-012-0178-z

The influence of macronitrogen (NO₃^- and NH₄⁺) addition with Ulva pertusa on dissolved inorganic carbon system

doi: 10.1007/s13131-012-0178-z

1.
North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China
2.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
3.
Binzhou Technical College, Binzhou 256600, China

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.

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出版历程
- 收稿日期: 2010-11-26
- 修回日期: 2011-03-02

The influence of macronitrogen (NO₃^- and NH₄⁺) addition with Ulva pertusa on dissolved inorganic carbon system

1.
North China Sea Marine Forecasting Center, North China Sea Branch, State Oceanic Administration, Qingdao 266033, China
2.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
3.
Binzhou Technical College, Binzhou 256600, China

摘要

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 CO₃^2- 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^-.
- dissolvedinorganiccarbon /
- algae /
- simulatedexperiments /
- Ulvapertusa /
- macronitrogen /
- theJiaozhouBay
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 CO₃^2- 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^-.
- dissolved inorganic carbon /
- algae /
- simulated experiments /
- Ulva pertusa /
- macronitrogen /
- the Jiaozhou Bay

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文章访问数: 330
HTML全文浏览量: 41
PDF下载量: 139
被引次数: 0