文摘
TAM III multi-channel calorimetry was applied to study the effect of different concentrations petroleum on soil microbial activity and community. The microbial activities of the soil samples were recorded as power-time curves. The thermokinetic parameters such as microbial growth rate constant k, total heat evolution Q T, metabolic enthalpy ?em class="a-plus-plus">H met and mass specific heat rate J Q/S were calculated. Results showed that petroleum had a certain extent effects to soil microorganisms. The results indicate that the soil microbial activity was promoted with a petroleum concentration lower than 0.52?%?±?0.24?%, but inhibited with further increase in petroleum.