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用3种生态学评价方法对“八五”期间嫩江齐齐哈尔江段底栖动物进行了评价，并与理化评价结果做了对比，同时分析了有关理化因子对生物评价结果的影响．
Three kinds of ecological evaluation methods were used to evaluate zoobenthos in Qiqihar section of Nenjiang River during the Eighth Five-year Plan period. The results were compared with that of physical and chemical evaluation. The influence of physical and chemical factors on bio-evaluation results was also analyzed.