Table 3.

Richness and diversity of soil fungal communities

soil	Cu spiked	n	OTU/sample	OTU/treatment	most abundant OTU	H'
	mg kg−1				%
D	0	2	62.5 ± 0.4	81	71.3	1.5 ± 0.42
	50	3	62.7 ± 2.5	88	82.6	1.1 ± 0. 39
	100	3	64.0 ± 4.2	88	85.8	1.0 ± 0.10
	200	4	61.0 ± 1.8	84	56.8	1.8 ± 0.19
	500	3	60.7 ± 6.3	81	73.0	1.3 ± 0.27
	1500	2	57.5 ± 13.8	85	43.1	1.7 ± 0.13
	5000	2	62.0 ± 2.8	80	29.5	1.7 ± 0.04
L	0	5	98.0 ± 2.5	137	43.9	2.4 ± 0.33
	50	4	106.3 ± 2.5	135	18.3	2.8 ± 0.09
	100	5	92.4 ± 3.0	136	23.4	2.5 ± 0.08
	200	5	84.4 ± 1.0	118	31.1	2.4 ± 0.02
	500	5	74.6 ± 0.2	120	56.3	1.7 ± 0.07
	1500	5	72.6 ± 3.0	123	37.0	1.2 ± 0.20
	5000	5	103.2 ± 3.3	140	24.1	2.4 ± 0.39

n: number of samples with sufficient reads for molecular analyses

OTU/sample: average number of OTU per sample ± standard error

OTU/treatment: number of OTUs per treatment after pooling of data from replicates

most abundant OTU: relative abundance in % of most abundant OTU in pooled data from replicates

H’: Shannon Index for fungal diversity in soil samples, average ± standard error from replicates