Abstract: Investigation has been done into Huixian Wetland in which track tests were carried on for one year in terms of Total Bacterial Count, Total Coliform; Fecal Coliforms and 7 samples were taken from different places of Huixian. The total bacteria (mL^-1), Coliforms (mL^-1) and Fecal coliform were analyzed by microbiological methods. The results indicate that the number of Coliform(mL^-1) is 8 971,1 901,3 823,512, Fecal coliforms(mL^-1) 4 385,432,<20,85 and total bacterial 2 314,27 000, 1 500,3 414, which shows clearly that the total bacteria rise evidently in summer. By multi-tube fermentation method, the number of Total Coliforms is 8 971, 1 901,3 823,512 MPN·L^-1 and Fecal Coliforms is 4 385,432,<20,85 MPN·L^-1. The results indicate that Total Coliforms and Fecal Coliforms rise evidently in spring.

Key words: Huixian Wetland, total Coliform, fecal Coliforms, total bacterial count