Extended Data Fig. 6: Projected yield changes and their difference between high- and low-quality soils.
From: Soil quality both increases crop production and improves resilience to climate change
a–d, projected yield changes and their difference between high- and low-quality soils under climate change in RCP 2.6 (a) and RCP 8.5 (b) up to 2040–2059, and RCP 2.6 (c) and RCP 8.5 (d) up to 2080–2099. Projected yield changes were estimated based on the primary dataset comprising all on-farm trials, differences of yield changes were estimated based on sub-datasets comprising on-farm trials with paired high- and low-quality soils in major cropping systems in China. Horizontal and vertical error bars (standard deviation, SD) represent interannual variations of yield changes and difference of yield change between high- and low-quality soils, respectively. Solid lines represent significant difference in yield change between high- and low-quality soil at p = 0.10, while dashed lines represent no significant difference. W-NCP, winter wheat in North China Plain; W-YZB, winter wheat in Yangtze River Basin; W-NWC, winter wheat in Northwest China; M-NEC, rainfed maize in Northeast China; M-NCP, maize in North China Plain; M-SWC, rainfed maize in Southwest China; SR-YZB, single rice in Yangtze River Basin; ER-SC, early rice in South China; LR-SC, late rice in South China.
