黄河甘肃段底栖动物群落结构及水质评价
王昱, 王旭, 冯起, 刘蔚, 贺昱华, 朱家乐, 王昱鹏

Macrobenthos community structure and water quality evaluation in Gansu section of Yellow River Basin
Yu Wang, Xu Wang, Qi Feng, Wei Liu, Yuhua He, Jiale Zhu, Yupeng Wang
表1 基于生物指数的水质等级评价标准［29］
Table 1 Biological index and graded standards of water quality［29］
生物指数清洁轻污染中污染重污染

Shannon-Wiener

多样性指数（H'）

H' >32≤H'≤31≤H'≤2H'<1

Margalef

丰富度指数（dM ）

dM >32<dM ≤31<dM ≤2dM ≤1