| 摘 要： | This paper is based on the results of simulation experiments and annual observations on the effect of Cr, Cu, Hg, and Zn on diatom (Chaetoceros sp. Skelelonema costatum and Melosira sulcata) growth. Laboratory experiments reveal many physico-chemical parameters play an important role in the toxicity and accumulation of metals in organisms.. The mesotrophic .level in the water environment is related to phytoplankton growth. A higher nutrient level can have a negative impact on diatom production. Several of the above metals coexist in the investigated region and exert mainly a negative effect on growth.
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