摘要
通过对精养鱼池表层淤泥中氨化细菌、亚硝化细菌、硝化细菌和反硝化细菌对含氮物质转化率的测定，定量了解了上述细菌的氨化率、亚硝化率、硝化率和反硝化率。结果表明：淤泥中细菌的氨化率、亚硝化率、硝化率和反硝化率在很大程度上受淤泥中有机物的含量、细菌数量和种群组成、淤泥的理化性质及水质情况的影响。建议生产上采用适当的管理措施，改善鱼池环境条件以提高池塘淤泥中细菌对含氮有机物的分解矿化速率，促进池塘物质和能量循环，减少有机物的淤积和池塘淤泥的沉积。
Ammonifying rate, nitrosifying rate,nitrifying rate and denitrifying rate were determined by measurement of conversion efficiency and accumulating rate of nitrogenous matter by ammonifying bacteria, nitrobacteria, nitrifying bacteria and denitrifying bacteria in the surface 0～1.5 cm of pond sediment from the intensive fish culture ponds.The results showed that the ammonifying rate, nitrifying rate, nitrosifying rate and denitrifying rate of bacteria in pond silt were significantly affected by the biomass and population composition of bacteria, physio-chmical characteristics of pond silt and water quality. Therefore, it was necessary to take some measures to improve the environmental conditions of fish ponds, in turn, to increase the conversion rate and accelerate the mineralization of organic matter and nitrogen recycling to reduce the sedimentation of organic matter and pond silt.
出处
《大连水产学院学报》
CSCD
1999年第1期70-74,共5页
Journal of Dalian Fisheries University
关键词
淤泥
细菌
含氮物质
转化率
pond silt
bacteria
nitrogenous matter
conversion rate
