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生态学杂志 ›› 2002, Vol. ›› Issue (5): 9-11.

• 研究报告 • 上一篇    下一篇

对虾养殖围隔生态系浮游生物群落有机碳的代谢

刘国才, 李德尚, 董双林, 陈兆波   

  1. 青岛海洋大学水产学院, 青岛, 266003
  • 收稿日期:1999-02-25 修回日期:2000-04-15 出版日期:2002-10-10
  • 基金资助:
    国家自然科学基金重点项目(39430150);国家攀登计划B(PD-B6-7-3专题);国家教委博士点专项基金(9542304);国家九五攻关项目(96-922-02-02)资助.

Metabolism of Organic Carbon of Plankton Community in Shrimp Cultural Enclosure Ecosystems

Liu Guocai, Li Deshang, Dong Shuanglin, Chen Zhaobo   

  1. Fishery College, Ocean University of Qingdao, Qingdao 266003
  • Received:1999-02-25 Revised:2000-04-15 Online:2002-10-10

关键词: 土壤真菌, N2O产生机制, N转化过程, N2O排放

Abstract: Metabolism of organic carbon of plankton community in shrimp cultural enclosure ecosystems was studied from May 30 to August 23,1997 in the shrimp farm of Huanghai Fishery Group corporation.The results indicated that the plankton community respiration rate fluctuated from 0.07 to 2.28mg C·L-1·d-1 with an average of 0.82±0.42mgC·L-1·d-1;in which,phytoplankton respiration rate averaged 0.34mgC·L-1·d-1,while zooplankton and bacteria respiration rates averaged 0.48 mgC·L-1·d-1,constituting 41% and 59% of the plankton community respiration rates respectively.Phytoplankton production rates fluctuated from 0.08 to 4.41 mgC·L-1·d-1 with an average of 1.68±0.80mgC·L-1·d-1.Its average ratio to plankton community respiration rate was 1∶0.49.The rate of plankton community respiration correlated positively with particular organic carbon concentration,but negatively with dissolved organic carbon concentration and water transparency.About 35% of the total organic carbon income was mineralized through the process of plankton community metabolism during the cultural period.

Key words: soil fungi, N2O production mechanism, N transformation processes, N2O emission.

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