Abstract:
Climate change, characterized by climate warming, has had a significant impact on soybean production worldwide. Based on a comprehensive review of relevant domestic and international literature, this study systematically summarizes current research methods on climate change and soybean production, illustrates the response of soybean phenology and yield to climate change, and proposes adaptive management suggestions. The main conclusions are as follows: 1) Research methods for the impact of climate change on soybean production mainly include field experiment observations, statistical analysis, and crop model simulation. The observation method of the field experiment is the most intuitive, and the statistical analysis method can guarantee the reliability and objectivity of the results. The model simulation method has strong mechanical rationality and a good extrapolation effect. Currently, artificial intelligence (AI) technologies such as machine learning, deep learning, and reinforcement learning can be utilized to enhance the accuracy of model simulations. Future research should integrate multiple methodologies to reduce the error of a single method and increase the accuracy of research on the response and adaptation of soybean production to climate change. 2) The impact of climate change on soybean production mainly stems from fluctuations in key climatic factors such as temperature, precipitation, radiation, and CO2 concentration. These factors directly affect the entire growth process of soybeans, not only causing changes in the phenological period and yield but also influencing quality. At present, research on the impact of climate change on soybean production has mainly focused on two aspects: changes in the growth period and fluctuations in yield. Due to regional differences in climate change, the degree of response of soybean phenology and yield to climate change worldwide shows significant spatial heterogeneity. Overall, for every 1 ℃ increase in temperature, the entire growth period of soybeans will be shortened by 5.9 days and the yield will decrease by 6.85%. Both precipitation and sunshine duration can shift the phenological period of soybeans. Meanwhile, for every 10 mm decrease in precipitation, the soybean yield decreased by 2.13%. However, owing to global warming, the concentration of CO
2 continues to increase. The fertilization effect of CO
2 can offset the negative impacts of climate change on soybean yield to some extent. Specifically, for every 10 μmol∙mol
−1 increase in CO
2 concentration, the yield will increase by 0.52%. 3) In terms of adjustment management measures, practices such as variety replacement, sowing date adjustment, and technology upgrades should be implemented to improve soybean yield potential and compensate for the negative impacts of climate change. In addition, policy subsidies, agricultural insurance, the application of the Internet of Things, and artificial intelligence technologies are important measures to compensate for the damage to soybean production caused by climate change