Fig. 5: Maize density and yield projections based on different scenarios.
From: China can be self-sufficient in maize production by 2030 with optimal crop management
Upper panels show average density (a) and yield (b) in the 2010s (2010–2019) and 2030 s (2030–2039) based on climate and climate coupled to SOM improvement projections. Box boundaries indicate the 25th and 75th percentiles across 22 GCMs, and whiskers below and above the box indicate the 10th and 90th percentiles, respectively. The black lines and crosshairs within each box indicate the median and mean values, respectively. Lower panels show density (c) and yield (d) for China by 2030 s compared with current conditions in the US. The black line represents average data from framers’ practice. The red, blue, and brown line represent density (yield) predicted under historical trend, optimum treatment, and optimum treatment coupled to SOM improvement, respectively. NE Northeast China, NCP North China Plain, NW Northwest China, SW Southwest China. Source data are provided as a Source Data file.
