| 鱼池淤泥中参与氮循环的细菌和淤泥活性 |
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| 引用本文： | 方秀珍,郭贤桢,郁桐炳,谢骏,张文优.鱼池淤泥中参与氮循环的细菌和淤泥活性[J].水产学报,1993,17(2):137-145. |
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| 作者姓名： | 方秀珍 郭贤桢 郁桐炳 谢骏 张文优 |
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| 作者单位： | 淡水渔业研究中心，淡水渔业研究中心，淡水渔业研究中心，淡水渔业研究中心，淡水渔业研究中心 无锡 214081，无锡 214081，无锡 214081，无锡 214081，无锡 214081 |
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| 摘 要： | 对精养鱼池的淤泥多次采样,经细菌学和化学的测定和分析,结果表明,淤泥中参与氮循环作用的细菌种类和数量以及它们代谢的底物和产物含量有明显的纵向层次变化。淤泥参与池塘氮循环的活性,主要受细菌数量、优势菌的代谢特性、代谢底物以及氧含量等因素相互作用的影响;认为可将专性好气菌的生长情况作为主要参考指标,判断淤泥的活性,据此,水—泥界面至约9cm深处为活性淤泥层,活性层以下深度的淤泥为非活性淤泥层,池塘氮循环的细菌动力学作用主要发生在活性淤泥层。建议生产上通过适当的管理措施,最大限度地保持并挖掘活性淤泥层参与氮循环动力学作用以加速池塘物质循环,提高鱼产量,减缓鱼池淤积。
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| 关 键 词： | 细菌 池塘 氮循环 |
| 收稿时间： | 9/1/1992 12:00:00 AM |
| 修稿时间： | 1/1/1993 12:00:00 AM |
BACTERIA INVOLVED IN N-CYCLE IN FISH POND SEDIMENT AND SEDIMENT ACTIVITY |
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| Fang Xiuzhen,Guo Xianzhen,Yu Tongbing,Xie Jun and Zhang Wenyou.BACTERIA INVOLVED IN N-CYCLE IN FISH POND SEDIMENT AND SEDIMENT ACTIVITY[J].Journal of Fisheries of China,1993,17(2):137-145. |
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| Authors: | Fang Xiuzhen Guo Xianzhen Yu Tongbing Xie Jun and Zhang Wenyou |
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| Affiliation: | Fang Xiuzhen,Guo Xianzhen,Yu Tongbing,Xie Jun,Zhang Wenyou Freshwater Fisheries Research Center,Wuxi 214081 |
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| Abstract: | Multiple sampling cores of pond sediments for a intensive, poly-culture fishpond were bacteriologically and chemically analysed. The results indi-cated that species and number distribution of bacteria involved in N-cycle and theN-containing substances in pond sediments varied vertically with depth. Thebacteria activities enrolled in N-cycle were mainly subject to the interactions ofbacterial number, dominating species and its type of metabolism, metabolic sub- strates, oxygen in sediments and other environmental factors. Growth of obligateaerobes is suggested to be the major indicator for estimating the activity of pondsediments. Thus, upper layer (from water/sediment interface to 9 cm deep or so)is active sediment layer, and its below is non-active layer. The bacteria dynamicprocesses in sediments related with N-cycle generally occur in the active layer.Appropriate operational measures may be considered and these may be helpful tomaintain and fully utilize activity potentials of active layer so as to enhance pondmaterial cycling and to minimize the fish pond silting-up. |
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| Keywords: | bacterial dynamic process pond sediment nitrogen-cycle |
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