污染使生物适应的正常环境改变,势必在生物中引起反应,不同的生物及同种生物的不同发育阶段会发生不同程度的反应。如观察细致,测试方法灵敏,就能早期发现个体组织和生理生化水平的变化。受污染物长期影响将导致生物种群的数量波动及群落结构的演替。生态学调查能在宏观上探索这种群落演替的情况,为判断污染影响提供一些证据。 Pollution changes the normal environment of biological adaptation, it is bound to cause response in the organism, different organisms and different organisms at different stages of development will occur to varying degrees of response. Such as careful observation, sensitive test methods, we can early detection of individual tissue and physiological and biochemical changes. The long-term effects of pollutants will lead to fluctuations in the number of biological populations and the succession of community structure. Ecological survey can explore the succession of this community in the macro, to provide some evidence to determine the impact of pollution.