Comprehensive soybean simulation powered by USDA-ARS ACSL's GLYCIM — featuring a leaf-level coupled energy balance model validated at SoyFACE. Quantifies CO₂ enrichment benefits (+8.8% per 100 ppm), temperature yield loss (−4.8%/°C), and drought × CO₂ interactions across the US Midwest rainfed production system.
Simulate soybean seed yield using GLYCIM's G×E×M framework — integrating variety maturity group, CO₂ × temperature × water stress interactions, and 2DSOIL soil dynamics. Calibrated against 156 site-year-cultivar-irrigation combinations from the US Mississippi Delta (RMSE ≤ 0.92 Mg/ha).
Evaluate whether elevated CO₂ can offset drought stress in soybean production using GLYCIM's SoyFACE-validated drought × CO₂ model. GLYCIM reveals a critical finding: CO₂ benefits decline with increasing drought severity — the CO₂ fertilization effect is highest in northern counties and declines southward and westward.
Project soybean yield changes across 12 US Midwest states under RCP 4.5 and 8.5 climate scenarios using GLYCIM's spatially-explicit 10km resolution projections. Without CO₂ effect: 24.6–47.4% loss. With CO₂ effect: 11.6–29.5% loss. Identifies county-level adaptation priorities.
SF36 delivers research-grade soybean production science powered by USDA-ARS ACSL's GLYCIM — a comprehensive soybean crop simulator with a leaf-level coupled energy balance model of photosynthesis, transpiration, and stomatal conductance integrated with 2DSOIL's 2D convective-diffusive root growth module. Validated against the SoyFACE FACE experiment and 156 site-year-cultivar-irrigation combinations from the US Mississippi Delta.
For corn science, see SF32 · MAIZSIM → · For the soil model foundation, see SF34 · 2DSOIL → · For cotton, see SF37 · GOSSYM →
Research sources: GLYCIM (github.com/USDA-ARS-ACSL/2DGLYCIM) · Sun et al. 2022 (Ag. & Forest Meteor. — modified GLYCIM) · Sun et al. 2023 (drought × CO₂ — SoyFACE) · Fleisher et al. Mississippi Delta validation · AgrStak · agrstak.com · Patent Pending · US App 63/970,943