农业径流对河流中细菌种群的影响。
The influence of agricultural run-off on bacterial populations in a river.
作者信息
Fernández-Alvarez R M, Carballo-Cuervo S, de la Rosa-Jorge M C, Rodríguez-de Lecea J
机构信息
Departamento de Microbiologia, Facultad de Farmacia, Madrid, Spain.
出版信息
J Appl Bacteriol. 1991 May;70(5):437-42. doi: 10.1111/j.1365-2672.1991.tb02961.x.
The microbiological quality of the River Riato (Spain) was evaluated. The influence of cattle that roam free in the warm season was marked. The degree of faecal pollution in the river was higher than predicted from the river basin geographical characteristics. The counts of faecal indicators greatly increased when the cattle were allowed to roam free. Counts of enterobacteria and faecal coliforms ranged from 10(3) to 10(6)/100 ml. Faecal streptococci counts were smaller (less than 10/100 ml). Escherichia coli and Pseudomonas aeruginosa were isolated from all samples. Streptococcus bovis was also isolated but not Strep. faecalis.
对里亚托河（西班牙）的微生物质量进行了评估。温暖季节里自由放养的牛群的影响很显著。河流中的粪便污染程度高于根据流域地理特征所预测的水平。当允许牛群自由活动时，粪便指示菌的数量大幅增加。肠杆菌和粪大肠菌群的数量范围为10³至10⁶/100毫升。粪链球菌的数量较少（低于10/100毫升）。所有样本中均分离出了大肠杆菌和铜绿假单胞菌。还分离出了牛链球菌，但未分离出粪肠球菌。
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