Sampling locations from the tree row into the cropping alley.

<p>The crop like symbol refer to sample plot.</p

Within plot microclimate and soybean responses 2, 4, and 6 m from tree row to three 26-year-old hardwood intercropping systems and monocropped soybeans.

<p>Across all treatments (control, poplar, maple, walnut), values in each row followed by the same letter are not significantly different (Tukey’s HSD, P<0.05).</p><p>* Significant at P<0.10 (10%) level.</p><p>Within plot microclimate and soybean responses 2, 4, and 6 m from tree row to three 26-year-old hardwood intercropping systems and monocropped soybeans.</p

Multiple regression analysis of environmental factors and photosynthetic rates of soybean in different treatments in 2012.

<p>*, ** indicate significant at 5% and 1% levels, respectively.</p><p>Note: Y is the predicted value of NA, X₁ is PAR, X₂ is air temperature, X₃ is RH, X₄ is CO₂ concentration, and X₅ is soil water content.</p><p>Multiple regression analysis of environmental factors and photosynthetic rates of soybean in different treatments in 2012.</p

12 and 26-year-old trees (1997 and 2012, respectively) intercropped with soybean at the same study site.

<p>Note: DBH is the diameter at breast height of tree.</p><p>^a Data of 1997 adapted from Simpson [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0129467#pone.0129467.ref022" target="_blank">22</a>].</p><p>^b1997 data not measured.</p><p>12 and 26-year-old trees (1997 and 2012, respectively) intercropped with soybean at the same study site.</p

Model inputs.

<p>Model inputs.</p

Incremental cost effectiveness ratio (ICER) for vaccination in children age 1–10, probability of ICER cost effectiveness with ACWY conjugate vaccine administered for 1 year olds at different annual incidence rates for the 26 meningitis belt countries.

<p>Incremental cost effectiveness ratio (ICER) for vaccination in children age 1–10, probability of ICER cost effectiveness with ACWY conjugate vaccine administered for 1 year olds at different annual incidence rates for the 26 meningitis belt countries.</p

Graphical representation of the cost-effectiveness model structure.

<p>Graphical representation of the cost-effectiveness model structure.</p

Annual infection rate per 100,000 population at which routine conjugate vaccination is cost-effective in children vaccinated at age 1 to 10.

<p>Annual infection rate per 100,000 population at which routine conjugate vaccination is cost-effective in children vaccinated at age 1 to 10.</p