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Google Scholar Page 2 # Variable Unit Range Mean ± SD Method 1 Arbuscular mycorrhizal fungi (AMF) biomass nmol/g soil 3.0–30.0 8.6 ± 6.0 Lipid extractions from soil 2 Bacterial biomass nmol/g soil 23.0–48.8 36.9 ± 7.6 Lipid extractions from soil 3 Fungal biomass nmol/g soil 0.7–2.2 1.2 ± 0.3 Lipid extractions from soil 4 Microbial nitrogen (N) µgNmic/g dry soil 22.4–91.8 61.5 ± 20.8 Chloroform fumigation extraction 5 Microbial carbon (C) µgCmic/g dry soil 158–539 386.1 ± 110.7 Chloroform fumigation extraction 6 Nematoda abundance individuals/100 g dry soil 267.9–5604.3 1191.3 ± 821.8 Baermann funnel method 7 Collembola abundance individuals per sample 0–70,656 9692.4 ± 16,037.0 Heat gradient extraction 8 Oribatida abundance individuals per sample 308–20,636 2338.8 ± 2666.0 Heat gradient extraction 9 Chilopoda abundance individuals per sample 0–252 55.2 ± 54.4 Heat gradient extraction 10 Diplopoda abundance individuals per sample 0–1176 85.6 ± 191.1 Heat gradient extraction 11 Araneae activity density individuals per sample 1–29 11.3 ± 5.8 Pitfall traps 12 Staphylinidae activity density individuals per sample 0–37 6.2 ± 7.3 Pitfall traps 13 Arable weed cover % cover 0–90 15.6 ± 23.4 Visual estimate 14 Bacterial diversity Shannon index on OTU level 6.7–6.9 6.8 ± 0.1 16S rRNA sequencing 15 Nematoda diversity Shannon index on genus level 1.3–2.4 1.9 ± 0.2 Baermann funnel method 16 Soil mesofauna diversity Shannon index on subclass/suborder level 0.0–1.1 0.7 ± 0.3 Heat gradient extraction 17 Soil macrofauna diversity Shannon index on family/order level 0.0–1.8 1.1 ± 0.4 Heat gradient extraction 18 Araneae diversity Shannon index on species level 0.0–2.3 1.4 ± 0.6 Pitfall traps 19 Microbial respiration µgCO2 − C/gsoil h 0.2–1.0 0.5 ± 0.2 CO2 evolution 20 Soil feeding activity Average % of baits consumed 1.4–99.7 49.6 ± 30.7 Bait-lamina 21 Litter decomposition Organic C/organic N (g) 54.1–128.8 80.2 ± 15.9 Litterbags 22 Soil water content % water content/g dry soil 7.2–29.9 17.5 ± 6.1 Gravimetric 23 Soil mineral N µg ammonium and nitrate/g dry soil 2.4–38.9 7.3 ± 7.1 Cd reduction and modified Berthelot reaction 24 C content wheat aboveground biomass % C/g dry plant 0.8–3.4 2.0 ± 0.7 C/N analyses 25 N content wheat aboveground biomass % N/g dry plant 42.0–45.9 43.8 ± 0.9 C/N analyses 26 Total aboveground wheat biomass dry mass (t/ha) 2.1–22.4 10.1 ± 5.8 Subsampling and weighting The total number of samples is N = 72, with the exception of variable 19 (N = 71) and variables 4, 5 and 21 (N = 70). For key references and detailed descriptions refer to the Suplementary information.
https://www.nature.com/articles/s41598-021-03276-x
Conventional agriculture and not drought alters relationships between soil biota and functions
