Effects of Urbanization on Water Quality and the Macrobenthos Community Structure in the Fenhe River, Shanxi Province, China

Table 3

Macrobenthos community parameters for the sampling sites and the relationships between the parameters and land use.

Variable	Min	Max	Mean	SD	r
					Cropland (%)	Grassland (%)	Forest (%)	Wetland (%)	Percentage of impervious area (PIA, %)
Biomass/(g/m^2)	0.14	213.33	27.62	54.52	0.336	−0.186	−0.105	−0.322	−0.382
Total number of taxa	0.00	15.57	4.3	3.58	−0.461	0.300	0.361	−0.177	−0.661
Shannon diversity index	0.00	2.27	1.11	0.70	−0.392	0.368	0.374	−0.263	−0.558
Berger–Parker index	0.00	1.10	0.52	031	−0.126	0.337	−0.167	0.069	0.705
N diversity index	89.42	1.22	32.58	23.74	−0.385	0.438	0.234	−0.239	−0.258
EPT (%)	0.01	1.00	0.21	0.33	−0.305	0.450	0.261	0.392	−0.419
Collector (%)	25.81	100.00	74.05	20.78	0.308	−0.358	0.112	−0.066	0.76
Filterer (%)	0.00	48.39	4.24	10.50	−0.278	0.377	0.177	−0.079	−0.287
Scraper (%)	0.00	31.58	2.90	6.87	−0.065	−0.091	0.234	0.483	−0.535
Predator (%)	0.00	19.23	5.21	6.71	−0.490	0.601	0.157	0.015	−0.186
Shredder (%)	0.00	50.00	11.82	16.96	0.489	−0.077	−0.334	−0.220	−0.060
Sensitive taxa (%)	0.00	38.10	5.12	10.64	−0.400	0.310	0.454	−0.023	−0.390
Tolerant taxa (%)	0.00	100.00	55.97	37.12	0.355	−0.377	−0.644	0.031	0.605
Oligochaeta (%)	0.00	100.00	20.24	35.19	0.370	−0.251	−0.324	−0.083	0.660

EPT, Ephemeroptera, Plecoptera, and Trichoptera; SD, standard deviation. ; .