Appendix A. Table with parameter estimates for the best-fit multiple simultaneous spatial autoregressive linear model.

Table with parameter estimates for the best-fit multiple simultaneous spatial autoregressive linear model

Appendix B. Figure showing the relative standard error (RSE) of mean switchgrass yield as a function of the number of random points distributed in each 27.5-km² cell.

Figure showing the relative standard error (RSE) of mean switchgrass yield as a function of the number of random points distributed in each 27.5-km² cell

Appendix D. The first and second principal component scores for each weather station id and the loading for each variable.

The first and second principal component scores for each weather station id and the loading for each variable

Appendix E. The change in switchgrass LBP expected from current climate by 2080–2090 under the A2 scenario in relation to changes in growing season precipitation, maximum temperature, and minimum temperature.

The change in switchgrass LBP expected from current climate by 2080–2090 under the A2 scenario in relation to changes in growing season precipitation, maximum temperature, and minimum temperature

Appendix C. The spatial distribution of the 2851 USDA-NRCS nonirrigated alfalfa yields across the north central and eastern United States used in Fig. 2.

The spatial distribution of the 2851 USDA-NRCS nonirrigated alfalfa yields across the north central and eastern United States used in Fig. 2

N₂O flux increases after fertilization.

<p>N₂O flux following fertilization; values are means (± one standard error).</p

Total stocks in above and belowground pools.

<p>Total stocks in above and belowground pools.</p

Time series for environmental variables and gas fluxes.

<p>Precipitation, irrigation (a), soil water filled pore space (b) and temperature (air and soil) (c), and greenhouse gas flux (d-f) for one production cycle of commercial field #609 at HC&S. Mean values (± one standard error) are shown for static chamber measurements of CO₂ (d), N₂O (e), and CH₄ (f) flux.</p

Species-specific root biomass and depth distribution.

<p>Total root biomass (year 1 plus year 2) by depth for napiergrass (a) and sugarcane (b); values are means (± one standard error).</p

Two years of soil carbon accumulation.

<p>Soil C stock at baseline versus year 2 for sugarcane and napiergrass at 100% and 50% of the plantation irrigation level. Values are means (± one standard error); n = 10 for the baseline soils, n = 3 for the trial plots.</p