藻－菌生态系统代谢功能的生态学研究

应用生态学报 ›› 1994, Vol. 5 ›› Issue (2): 177-181.

藻－菌生态系统代谢功能的生态学研究

邓家齐¹, 詹发萃¹, 夏宜¹, 况琪军¹, 叶春芳², 陈文化²

1. 中国科学院水生生物研究所, 武汉 430092;
2. 湖北省黄州市环境监测站, 黄州 436510

收稿日期:1992-06-04 修回日期:1992-09-14 出版日期:1994-04-25 发布日期:1994-04-25
基金资助:
“七五”科技攻关项目

Ecological study on metabolic function of algae-bacteria ecosystem

Deng Jiaqi¹, Zhan Facui¹, Xia Yicheng¹, Kuang Qijun¹, Ye Chunfang², Chen Wenhua²

1. Institute of Hydrobiology, Academia Sinica, Wuhan 430072;
2. Huanzhou Environmental Monitoring Station, Hubei Province, Huanzhou 436510

Received:1992-06-04 Revised:1992-09-14 Online:1994-04-25 Published:1994-04-25

摘要/Abstract

摘要： 在室内模拟条件下,研究了一些生态因子对藻-菌(A+B)生态系统代谢有机碳(C₆H₁₂O₆)、NH₃-N和无机磷(IP)的影响。研究结果表明,当藻-菌生态系统中藻(A)或菌(B)的起始数量一定时,其代谢C₆H₁₂O₆的速率,随与之组合的B或A的起始数量增加(数量比则相应降低)而增加。在光照和黑暗条件下,A+B系统代谢上述3种营养物质的速率均有一定的差异。黑暗下C₆H₁₂O₆的平均代谢速率较光照下高12.3%(P<0.05),IP和NH₃-N的平均代谢速率则分别较光照下低14.4%(P<0.05)和16.2%(P<0.001).在A+B系统和A、B单培养物中,3种营养物质的代谢速率均随有机负荷量增加而增加,而且A+B系统的代谢速率分别高于单培养的A和B,其中NH₃-N代谢尤为显着。文章还就生态系统结构与功能的关系问题进行了讨论。

关键词: 藻－菌生态系统, 藻菌数量比, 代谢速率, 有机负荷量, 单培养

Abstract: Effects of ecological factors on metabolic rate of organic carbon(C₆H₁₂O₆), NH₃-N and inorganic phosphorus (IP) in an algae-bacteria ecosystem (A+B) are studied under simulated conditions.The results show that the metabolic rate of C₆H₁₂O₆ in A+B ecosystem increases with decreasing ratio of bacteria (B)/algae (A) or algae/bacteria, and those of C₆H₁₂O₆,NH₃-N and lP are different in light and dark experiments. The average metabolic rate of C₆H₁₂O₆ in dark is 12.3% higher than in light, while those of IP and NH₃-N in light are respectively 14. 4% and 16.2% higher than in dark.The average metabolic rate of these three nutrient matters are all increased with increasing load of organic carbon in A+B,A and B cultures, especially in case of NH₃-N.The relationship between structure and function of algae-bacteria ecosystem is also discussed in this paper.

Key words: Algae-bacteria ecosystem, Single culture, Metabolic rate, Algae, bacteria ratio, Organic load content

邓家齐, 詹发萃, 夏宜, 况琪军, 叶春芳, 陈文化. 藻－菌生态系统代谢功能的生态学研究[J]. 应用生态学报, 1994, 5(2): 177-181.

Deng Jiaqi, Zhan Facui, Xia Yicheng, Kuang Qijun, Ye Chunfang, Chen Wenhua. Ecological study on metabolic function of algae-bacteria ecosystem[J]. Chinese Journal of Applied Ecology, 1994, 5(2): 177-181.