Abstract: Based on the daily climate and wine grape growth data of 10 meteorological stations in wine grape cultivable area of Ili Kazak Autonomous Prefecture, Xinjiang Uygur Autonomous Region, spatial distribution and variation of wine grape climate resources and agricultural meteorological disasters in the study area from 1961 to 2020 were analyzed. Those were calculated by M-K test, trend test and other statistical methods, combined with ArcGIS spatial expression. It can be provided a scientific basis for more efficient and reasonable use of local snow resources to alleviate drought and freezing injury and optimize wine grape overwintering methods. The results showed that: (1) the light and heat resources in Ili region were rich except Zhaosu and Nilke, while the spatial distribution of precipitation was uneven and less than 455mm. The precipitation in the whole area increased by 5.1mm·10y⁻¹ from 1961 to 2020, which generally met the climatic requirements for the wine grapes growth and development. The snowfall during the wine grapes overwinter period in the whole region increased by 7.4mm·10y⁻¹, while the probability of snow cover in 0−10cm was greater than 90%. (2) The frequency and intensity of frost damage decreased during the overwintering period in the whole region from 1961 to 2020, while drought was more serious in July and September in the potential growing season.

Key words: Ili region, Wine grapes, Agricultural climate resources, Snow resources, Agricultural meteorological disasters