Assessing the capacity of agricultural research and development to increase the stability of global crop yields under climate change.

ABSTRACT: Agricultural research and development (R&D) has increased crop yields, but little is known about its ability to increase yield stability in the context of increasingly frequent extreme weather events. Using a grid yield dataset, we show that from 2000 to 2019, the SD of yield anomalies for maize, rice, wheat, and soybean increased in 20% of the global harvested area. Based on random forest models relating yield anomaly to climate, soil, management, and public R&D expenditure, we show that cumulative agricultural R&D expenditure, proportion of growing season exposed to optimal hourly temperatures, and dry and very wet days are key factors explaining crop yield variability. An attribution analysis based on large ensemble climate simulations with and without human influence on the global clim

SUBMITTER: Iizumi T 

PROVIDER: S-EPMC11969147 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature