Abstract: Using daily meteorological data from 91 national meteorological observation stations in Guangxi from 1961 to 2020, the spatial distribution characteristics of climate resources during sugarcane seedling stage （P1）, tillering stage （P2）, stem elongation period （P3）, and process maturity stage （P4） were analyzed. Linear trend analysis was used to explore the response of climate resources to climate change during the sugarcane growth period. The results indicated that in terms of spatial distribution, the average temperature was higher in the west and lower in the east during the seedling stage, and higher in the south and lower in the north during the stem elongation period and process maturity stage; the sunshine hours were higher in the west and lower in the east during the seedling stage, higher in the east and lower in the west during the stem elongation stage, and higher in the south and lower in the north during the tillering stage and process maturity stage; the precipitation was higher in the east and northeast, and low in the southwest during the seedling and tillering stages, higher in the west and southwest, and lower in the northeast during the stem elongation stage, and higher in the central Guangxi region during the mature stage. Under the background of climate change, the average temperature during the sugarcane its growth period had significantly increased, with the fastest increase occurring during the mature stage of sugarcane production in northern Guangxi. The number of sunshine hours significantly decreased, with the most significant decrease occurring during the stem elongation stage; the precipitation showed a significant upward trend during the tillering period of sugarcane in northeastern Guangxi.

Key words: sugarcane（Saccharum officinarum L.）, climate resource, climate change, Guangxi