Effects of Climate Change on Cultivation Patterns and Climate Suitability of Spring Maize in Inner Mongolia

Climate change has caused significant alterations in crop cultivation patterns and affected suitability as well its production. In this study, we investigated the changes climate of spring maize Inner Mongolia from 1959 to 2018. We used daily meteorological data 50 weather stations growth period nine agrometeorological stations. addition, quantitative interdecadal relationship between regions climate-induced yield was analyzed using stepwise regression cross wavelet transform. The results show that: (1) planting boundaries different maturity types extend north east. middle part, early been replaced by medium maize. unsuitable areas Northeast are decreasing, increasing. (2) for is However, variations occur regions; eastern region highest (Sz = 0.67), but overall trend decreasing region. Whereas central moderate 0.62), with a significantly increasing (p < 0.05). western lower 0.60) not significant. (3) yields generally positively correlated. primary factors affecting sunshine hours, followed suitability, rainfall, temperature. cross-wavelet transform shows that have greater periodicity late period. Appropriate expansion range medium-late can fully adapt impact warming. Therefore, it necessary study trends adopt comprehensive production measures.