Abstract: Climatic suitability rationalization indicators based on meteorological data were collected from 20 national meteorological observation stations in and around the Ili River Valley from 1991 to 2020 to optimize agricultural planting structures, improve the utilization of climate resources, and effectively regionalize suitable planting areas for Shushanggan apricot in the Ili river valley. Additionally, the biological characteristics of the Shushanggan apricot and the key meteorological factors were influencd its growth and development. Subsequently, to develope a spatial distribution model for these climatic suitability indicators. By reclassifying and overlaying the four regionalization indicators, a comprehensive climate-appropriate regionalization for Shushanggan apricot was obtained cultivation in the Ili river valley. The analysis revealed that the cultivation of Shushanggan apricots in the Ili River Valley can be categorized into four distinct areas: most suitable, suitable, sub-suitable, and unsuitable. The most suitable planting areas are predominantly situated in the river valley plains and low mountainous regions, with altitudes ranging between 700 and 1200 m, particularly in the northern part of the Ili River Valley, the north segment of Wusun mountain, and the east segment of Xinyuan county. Sub-optimal planting areas are found in river valley plains and low mountainous regions, with altitudes below 700 m and between 1200 and 1500 m. Conversely, unsuitable planting areas are in mid-low mountainous regions above 1,500 m. These findings provide valuable insights for governmental bodies seeking to optimize agricultural cultivation structures in the Ili River Valley.

Key words: Shushanggan apricot, Ili river valley, Suitability indicators, Climatic regionalization