Abstract:

The purpose of this study is to make rational use of agricultural climate resources, carry out the climate suitable zoning of seabuckthorn planting in Aheqi, and arrange the planting area of seabuckthorn scientifically. Base on the historical meteorological data of 25 national meteorological stations in Aheqi County and its surrounding areas from 1991 to 2024, the climatic regionalization index of seabuckthorn planting in Aheqi County was determined by using ≥10°C accumulated temperature, frost-free period statistical method, grid mathematical model of spatial distribution of climatic elements and their changes, and agricultural climatic regionalization method. By using ArcGIS technology, the seabuckthorn planting area was divided into four areas : the most suitable area, the suitable area, the sub-suitable area and the unsuitable area. The research shows that the most suitable areas for planting sea buckthorn are in the middle and eastern part of the county, and the central and southern plains of the southern valley. The suitable areas are in the middle and eastern part of the county and the southern plain of the valley at an altitude of 1900-2100 m and 2200-2400 m. The sub-suitable planting areas are in the county valley plain and the valley hilly low mountain belt. The unsuitable areas are distributed in the middle and high mountain areas in the western, northern and southern mountainous areas of the county.

Key words: seabuckthorn, climate suitability, ArcGIS, Aheqi County