The ground base was evaluated and analysed by using biological index and variation of population of benthon which are effected by bottom water and mud environment.
以底栖动物作为底层水环境和底泥环境长期影响的指标，利用生物指数和种群结构的变化对底质进行评价和分析。
The study on the biomass, respiration and P/B coefficient of benthon have been carried out with counting method, sealed apparatus method and cultivation method in Sanjiang Plain.
本文运用计数法、封闭器法和培养法对底栖动物的生物量、呼吸强度和P/B系数进行了研究。
The study on the biomass, respiration and P/B coefficient of benthon have been carried out with counting method, sealed apparatus method and cultivation method in Sanjiang Plain.
本文运用计数法、封闭器法和培养法对底栖动物的生物量、呼吸强度和P/B系数进行了研究。
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