【目的】 光肩星天牛Anoplophora glabripennis是一种重要的林木蛀干害虫，近年来在甘肃河西走廊和新疆部分地区猖獗危害，对我国三北防护林工程建设造成了极大威胁。本文研究了配植沙枣树Elaeagnus angustifolia对林分中光肩星天牛种群空间格局的影响，以期为基于配植诱杀树沙枣混交造林生态自控（Ecological self-regulation）光肩星天牛提供依据。【方法】 应用地统计学方法，分析了诱杀树沙枣与抗性树种新疆杨Populus alba var. pyramidalis的混交林中光肩星天牛种群的空间分布格局。【结果】 不同林分中天牛刻槽、排粪孔+羽化孔和刻槽+排粪孔+羽化孔均为聚集分布，最优拟合模型为指数模型、高斯模型和球状模型。配植沙枣的林分中天牛刻槽和刻槽+排粪孔+羽化孔的聚集程度强于防护林新疆杨纯林。防护林新疆杨纯林中天牛排粪孔+羽化孔的空间依赖范围最大，在2.89 m范围内聚集；配植沙枣的混交林中天牛刻槽的空间依赖范围均最大，其中沙枣与线叶柳Salix wilhelmsiana、旱柳S. matsudana和新疆杨混交的防护林窄林带中天牛刻槽在2.99 m范围内聚集，沙枣与新疆杨混交的防护林宽林带中天牛刻槽在12.98 m范围内聚集，沙枣与新疆杨混交的园林绿化林中天牛刻槽在12.37 m范围内聚集；说明光肩星天牛向沙枣的聚集性强。对比不同林分光肩星天牛危害特征的矢量叠加图与野外调查结果可知，光肩星天牛种群均向沙枣树聚拢，且当沙枣与新疆杨2种树种混交时，光肩星天牛向沙枣的聚集性更强，天牛种群分布更集中。【结论】 不同林分中光肩星天牛种群均呈聚集分布，在配植沙枣树的混交林中，沙枣能够引诱光肩星天牛刻槽产卵，起到保护新疆杨的作用。

 [Aim]  To investigate the effect of the trap-tree Elaeagnus angustifolia on the spatial distribution of the Asian longhorn beetle, Anoplophora glabripennis, with the aim of assessing the feasibility of controlling A. glabripennis by planting E. angustifolia. [Methods]  Geostatistical methods were employed to analyze the spatial distribution pattern of A. glabripennis in mixed forest stands that included E. angustifolia and the resistant tree species Populus alba var. pyramidalis. [Results]  The distribution of the A. glabripennis oviposition scars, frass holes + emergence holes, and oviposition scars + frass holes + emergence holes were aggregated in different forest stands. The distribution of these features best fitted exponential, Gaussian, and spherical models, respectively. The aggregation of oviposition scars, oviposition scars + frass holes + emergence holes was more pronounced in stands planted with E. angustifolia than in a shelterbelt of pure P. alba var. pyramidalis. The spatial dependence range of frass holes + emergence holes in a shelterbelt of pure P. alba var. pyramidalis stands was the largest, with clustering within a range of 2.89 m. The spatial dependence range of oviposition scars was largest in stands with E. angustifolia; the clustering range was 2.99 m in narrow shelterbelts comprised of E. angustifolia, Salix wilhelmsiana, S. matsudana, and P. alba var. pyramidalis, 12.98 m in wide shelterbelts containing E. angustifolia and P. alba var. pyramidalis, and 12.37 m in landscaping forests containing E. angustifolia and P. alba var. pyramidalis, indicating a strong association between A. glabripennis and E. angustifolia. A comparison of vector overlay maps of pest damage characteristics in different forest stands with the results of field surveys indicates that A. glabripennis tends to cluster around E. angustifolia. Moreover, in stands containing both E. angustifolia and P. alba var. pyramidalis, A. glabripennis tends to be more abundant on E. angustifolia, causing the A. glabripennis population to become more concentrated. [Conclusion]  A. glabripennis has a clumped distribution in different forest stands. Because A. glabripennis prefers to lay eggs on E. angustifolia, planting the latter species may protect P. alba var. pyramidalis.