Abstract: Taking temperature and precipitation as the two factors of climate change and Anhui Province as the study area, based on the data of temperature, precipitation and rice yield from 2001 to 2020, the mechanism of temperature and precipitation on rice yield was analyzed by geographically and temporally weighted regression（GTWR）. The results showed that from 2001 to 2020, the rice yield of each city in Anhui Province showed a continuous fluctuation in time, and there were also specific agglomeration phenomena in space. The temperature and precipitation were positively correlated with rice yield in the northwest of Anhui Province, and the positive correlation was the most significant in Bengbu City. Among all the cities in Anhui Province, the rice yield in Huainan City and Lu’an City was the most significantly affected by temperature and precipitation, while the rice yield in Huaibei City was relatively less affected by temperature and precipitation, indicating that other factors in this region had a deeper impact on rice yield.

Key words: temperature, precipitation, rice yield, geographically and temporally weighted regression（GTWR）, Anhui Province