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gcb12177-sup-0001-FigS1.pdfapplication/PDF94KFigure S1. Schematic of soil volume excavations for coarse and woody root standing crops of shrub (left), bunchgrass (middle), and interspace (right) microsites. Shaded volumes of soil were excavated to estimate root biomass for each microsite. Asterisks represent center of target plant. For shrubs, the lightly-shaded 0.5 m wide × 1.0 m long × 1.0 m deep soil volume that included the target plant's center was excavated first, then the darker-shaded 0.5 m wide × 0.5 m long × 0.5 m deep soil volume was excavated.
gcb12177-sup-0002-FigS2.EPSimage/eps1485KFigure S2. Carbon content of shoot (top panels) and root (bottom panels) tissues for the five dominant species for non-blower controls, ambient [CO2], and elevated [CO2] plots at the Nevada Desert FACE Facility. See Fig. 5 for additional details.
gcb12177-sup-0003-FigS3.EPSimage/eps1496KFigure S3. Nitrogen content of shoot (top panels) and root (bottom panels) tissues for the five dominant species for non-blower controls, ambient [CO2], and elevated [CO2] plots at the Nevada Desert FACE Facility. See Fig. 5 for additional details.
gcb12177-sup-0004-TableS1-S3.docxWord document28K

Table S1. anova results for shoot standing biomass, for shoot allocation to vegetative, twig, and woody tissues, and for leaf area index (LAI) for species that comprised >90% of shoot biomass. Degrees of freedom (DF) are reported as ‘numerator, denominator’.

Table S2. anova results for root standing biomass measured: (a) at six microsites in each plot; and (b) for transects in each plot that sampled the entire plant community. Degrees of freedom (DF) are expressed as ‘numerator, denominator’.

Table S3. anova results for C and N content, C : N ratio, and C and N stable isotope composition of (a) shoot tissues and (b) root tissues. Degrees of freedom (DF) are expressed as ‘numerator, denominator’.

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