Abstract
Artificial land treatment system was constructed to remove nutrient salt in the sewage by the physicochemical and biochemical mechanisms of plants, microorganisms and soil. The aims of this research were to investigate the relationship between the water purification efficiency using the land treatment system and the variation of microbial community, and to study the interactive relation between microbial community and flora by observing the flora succession. The results showed that the vegetation coverage facilitated the soil steadiness. After the fortieth day, the average moisture content of soil and capacity of cation exchange in the restoraion zone tended to steadiness due to the increase of vegetation coverage. Besides, the observed results indicated that the microbial community was affected by the flora succession. When composite plants became the dominant species, the Aeromonas family (Aeromonas hydrophila/caviae, Aeromonas salmonicida) and Burkholderia cepacia were the main species of bacteria in t...
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