2.1.1 Aboveground plant biomass

Authors: Reinsch S1, Linstädter A2, Beil I3, Berauer B4, Kröel-Dulay G5, Stuart-Haëntjens E6, Schmidt IK7 Reviewers: Ruppert JC8, Kreyling J3, Linder S9, Marshall J10, Smart S11, Weigel R12   Measurement unit: g dry biomass m-2; Measurement scale: plot; Equipment costs: €-€€; Running costs: none; Installation effort: low to medium; Maintenance…

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2.1.2 Belowground plant biomass

Authors: Schmidt IK1, Ostonen I2 and Blume-Werry G3 Reviewer: Weigel R4   Measurement unit: g roots/soil volume or root length; Measurement scale: plot; Equipment costs: € – €€€; Running costs: €; Installation effort: medium; Maintenance effort: low to medium; Knowledge need: medium; Measurement mode: manual A large proportion of plant…

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2.1.3 Leaf-scale photosynthesis

Authors: Mänd P1, Stuart-Haëntjens E2, Marshall J3 Reviewers: Gough C2, Zinnert J C2   Measurement unit: μmol CO2 m-2 s-1; Measurement scale: leaf; Equipment costs: €€€; Running costs: €€; Installation effort: medium; Maintenance effort: medium; Knowledge need: high; Measurement mode: manual or automated Through the process of photosynthesis (carbon dioxide…

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2.1.4 Plant respiration

Author: Marshall J1 Reviewer: Gough C2   Measurement unit: µmol m-2 s-1 (or g-1 or m-3), µmol g-1 s-1; Measurement scale: tissue, plant, or plot; Equipment costs: €€€; Running costs: €; Installation effort: medium to high; Maintenance effort: -; Knowledge need: high; Measurement mode: manual measurement or data logger Plant…

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2.1.5 Root exudation (in situ)

Authors: Ostonen, I1, Ven, A2, Meier IC3 Reviewer: Preece, C4   Measurement unit: minutes, hours, days; Measurement scale: length, mass or surface unit of root; ground unit of a plot or site; Equipment costs: €-€€€; Running costs: €-€€€; Installation effort: high; Maintenance effort: low to high (frequent recording); Knowledge need:…

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2.1.6 Foliar stoichiometry and nutrient resorption

Author: Soper FM1 Reviewer: Peñuelas J2,3, Estiarte M2,3   Measurement unit: mg g-1 or%; Measurement scale: plot; Equipment costs: €; Running costs: €-€€; Installation effort: low to medium; Maintenance effort: -; Knowledge need: low; Measurement mode: manual Nitrogen (N) and phosphorus (P) are the most widely measured foliar nutrients because…

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2.2.1 Soil microbial biomass – C, N, and P

Authors: Schmidt IK1, Reinsch S2, Christiansen CT3 Reviewers: Verbruggen E4, Berauer, B5   Measurement unit: mg C, N, or P g-1 dry soil or g-1 SOM; Measurement scale: plot; Equipment costs: none; Running costs: €; Installation effort: low; Maintenance effort: medium; Knowledge: medium; Measurement mode: manual The soil microbial biomass…

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2.2.2 Root and soil colonisation by mycorrhizal fungi

Authors: Verbruggen E1, Radujković D1 Reviewers: Weigel R3, Ribbons R4   Measurement unit: percentage of colonisation; Measurement scale: plot or plant; Equipment costs: €; Running costs: €; Installation effort: medium to high; Maintenance effort: -; Knowledge need: medium to high; Measurement mode: manual Mycorrhizae are plant–fungi symbiotic relationships in which…

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2.2.3 Soil CO2 (and other trace gas) fluxes

Authors: Schindlbacher A1, Larsen KS2, Vicca S3 Reviewer: Christansen CT4   Measurement unit: µmol m-2­ sec-1; Measurement scale: plot; Equipment costs: €€-€€€; Running costs: €-€€; Installation effort: medium to high; Maintenance effort: medium; Knowledge need: medium to high; Measurement mode: manual and/or data logger Soil CO2 efflux, often denoted as…

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2.2.4 Soil carbon and nutrient stocks

Authors: Leblans NIW1, Stuart-Haëntjens E2, Schindlbacher A3, Vicca S1 Reviewer: Almagro M4   Measurement unit: Mg C ha-1 or kg C m-2; Measurement scale: plot; Equipment costs: €; Running costs: €; Installation effort: medium; Maintenance effort: -; Knowledge need: medium; Measurement mode: manual The soil carbon (C) stock is the…

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