[CH Emissions Characteristics and Its Influencing Factors in an Eutrophic Lake].

In order to identify methane (CH) diffusion emissions characteristics and their impact factors in an eutrophic lake, CH flux across the lake-air interface was observed in Meiliang Bay and the central zone of Lake Taihu over one year. The relationships between CH flux and environmental factors and water quality indices were analyzed. The results indicated that the annual mean CH diffusion flux in the eutrophic zone was significantly higher than that in the central zone, which were 0.