在中国沙棘天然分布区的主轴线上 ,自西南而东北 ,选择了 5个有代表性的地段 ,用样地调查与统计分析的方法 ,研究了中国沙棘主要经济性状变异及性状间组配情况 ,比较了不同地段的异同 ;统计了各主要经济性状变异的变异参数 ;揭示出各性状在群体内可自由组配的情况。并以产地试验作验证 ,认为 5个种群可划分为两个生态—地理群 ,群内性状相对一致 ,群间差异较大。种群变异表现为各类性状特征出现频率的递变。 In the main axis of the natural distribution of seabuckthorn in China, from the southwest to northeast, five representative plots were selected. With the method of sample survey and statistical analysis, the main economic traits of Chinese buckthorn and the distribution of traits , Comparing the similarities and differences of different locations; counting the variation parameters of the major economic traits; revealing that the traits can be freely assembled within the group. The results of field trial proved that the five populations could be divided into two ecologically-geographically diverse groups with relatively consistent traits and large differences among populations. Population variation showed the frequency of occurrence of various traits.