Abstract:

To explore the coordinated relationship between crop planting structure and climate change in Sichuan Province, based on the climate data and crop planting area data of the province, this study analyzed the climate change, crop planting structure change and their coordination relationship from 2000 to 2018. The results showed that: from 2000 to 2018, the precipitation and accumulated temperature ≥10℃ in Sichuan showed a significantly upward trend, the climate tendency rate of precipitation was 53.5 mm/10 a, and the climate tendency rate of accumulated temperature≥10℃ was 123.7℃/10 a; the planting area of maize, oil crops, legumes and fruits increased significantly, the planting area of potato remained relatively stable, and the planting area of rice, wheat and other crops decreased significantly, and the proportion of planting structure of main crops changed significantly. The top three crops in Sichuan Province were rice, maize and potato, with an average proportion of 21%, 17% and 13%, respectively, and the proportion of rice was relatively stable among all kinds of crops; the proportion of wheat was decreasing year by year. The crop planting structure change and climate change in Sichuan Province from 2000 to 2018 were compatible with each other, and the coupling degree and coupling coordination degree were high.

Key words: crop, planting structure, coupling coordination degree, Sichuan Province