【摘要】 本文利用1982年和1983年的资料,对用大型底栖动物作珠江广州河段污染评价及其建立的生物污染指数公式作进一步分析.用Morisita指数公式计算了三大类动物的分布,结果皆呈负二项分布.计算了各采样点底栖动物的Shannon-Weiver等六种多样性指数,未发现有明显的规律性.生物污染指数效果较好。两岸存在差异.更多还原

【Abstract】 In the previous paper there was developed a simple biological pollution index (BPI) based on benthic macroinvertebrates to assess the pollution status of Pearl River, Guangzhou. The results presented here give a further evidence which indicates that such an empirical index is found more useful after comparing with Shannon-Weiver, Pielou, Heip, Simpson, Brillouin and Fisher-α indices.更多还原