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Table 4 Topological indices of each network in Fig. 3

From: Protist communities are more sensitive to nitrogen fertilization than other microorganisms in diverse agricultural soils

  All soil types Black soil Fluvo-aquic soil Red soil
Control N NS Control N NS Control N NS Control N NS
Clustering coefficient 0.339 0.349 0.344 0.382 0.339 0.432 0.415 0.410 0.496 0.361 0.371 0.427
Network density 0.043 0.040 0.041 0.011 0.014 0.018 0.009 0.020 0.030 0.009 0.009 0.022
Number of nodes 124 121 110 343 313 254 368 354 328 409 365 328
Number of edges 325 289 248 648 668 571 637 1236 1635 754 604 1178
Protist nodes (%) 8.06 5.79 4.55 21.87 19.81 16.14 10.05 5.65 6.10 17.11 13.15 14.33
Fungal nodes (%) 21.77 21.49 12.73 19.24 22.04 19.69 18.47 17.80 17.68 20.54 21.92 20.12
Bacterial nodes (%) 70.16 72.73 82.73 58.89 58.15 64.17 71.47 76.55 76.22 62.35 64.93 65.55
Edges linking protist to bacteria (%) 2.77 0 0.40 16.82 17.07 12.78 7.85 4.05 0.43 16.45 12.42 4.24
Edges linking protist to fungi (%) 0.31 0.35 0 6.48 6.74 8.06 3.14 0.49 0.24 6.90 5.46 2.29
Edges linking bacteria to fungi (%) 15.69 14.53 13.31 13.12 17.07 11.56 21.19 10.28 4.46 16.98 24.34 14.35
  1. Abbreviation: Control no nitrogen addition, N nitrogen addition, NS nitrogen + straw addition, Protist nodes (%) percentage of nodes assigned to protist taxa, Edges linking protist to bacteria (%) percentage of edges linking protist taxa to bacterial taxa