为充分利用生态优势，促进甜樱桃产业高质量发展。选取39个不同区域气象观测点相关因子数据，分析其对甜樱桃种植适宜性的影响，并采用系统聚类法组件平均距离链接对相关因子分类。提出年平均气温、极端最低气温、降水量、土壤pH、≥10 ℃年活动积温、晚霜冻害发生次数、海拔等7项适宜性关键因子指标，并对其进行分级。将天水市甜樱桃种植区划分为适宜区、次适宜区、不适宜区3个区域，符合指标项数5项以上的为适宜区，符合指标级数4项的为次适宜区，符合指标3项及以下的为不适宜区。

To fully utilize the ecological advantages and to promote the high-quality development of sweet cherry industry, relevant factor data from 39 meteorological observation points in different regions were selected and their impacts on the suitability of sweet cherry cultivation were analyzed, the system clustering method was applied to classify related factors by component average distance links. 7 Key factor indicators for suitability and their grading were put forward including annual average temperature, extreme minimum temperature, precipitation, soil pH value, annual active accumulated temperature equal to or greater than 10 ℃, frequency of late frost damage and altitude. Planting regionalization of sweet cherries in Tianshui was divided into suitable, sub-suitable and unsuitable zones in which areas with 5 or more key indicators satisfied were recognized as suitable zone, areas with 4 key indicators satisfied were recognized as sub-suitable zone and areas with 3 or less key indicators satisfied were recognized as unsuitable zone.

S662.5