[目的] 以科尔沁沙地奈曼沙区小叶杨(Populus simonii)防护林为研究区域，研究防护林带间植被修复与土壤发育的最适行带配置模式，为科尔沁沙地人工造林提供科学依据。 [方法] 对4种不同带间距的行带式小叶杨防护林带间植物群落多样性、土壤理化性质及其相关性进行研究。 [结果] 带间距的大小对小叶杨防护林带间植被与土壤恢复有明显影响，植被恢复与土壤恢复是相辅相成的。① 自然状态下防护林带间物种多样性及群落稳定性具体表现为：带间距10 m＞6 m＞4 m＞2 m； ②土壤含水量及土壤养分(有机碳、碱解氮、速效磷、速效钾)含量表现为：带间距10 m＞6 m＞4 m＞2 m，土壤容重为：带间距10 m＜6 m＜4 m＜2 m； ③在0-60 cm土层深度中，不同带间距小叶杨防护林带间物种多样性指数与土壤理化性质呈现出不同程度的显著或极显著相关(p＜0.05)，其中与各物种多样性指数相关性最大的为土壤容重，与各土壤理化性质相关性最明显的物种多样性指数为Margalef丰富度指数。 [结论] 在科尔沁沙地奈曼沙区小叶杨人工造林过程中，适当增大行带式小叶杨造林带间距，能够有效提高林地生产水平与生态效益。综合考虑带间植被与土壤恢复，造林带间距达到10 m为宜。
[Objective] The most suitable row-band configuration pattern was determined for vegetation restoration and soil development between protection forest strips in the Populus simonii shelterbelt located in the Naiman sand region of the Horqin sandy land area to provide a scientific basis for artificial afforestation in this area. [Methods] Plant community diversity, soil physicochemical properties, and their correlation for four types of Populus simonii shelterbelts with different band spacings were studied. [Results] The size of the band spacing had a significant impact on the vegetation and soil restoration between Populus simonii shelterbelts, and vegetation restoration and soil restoration were complementary. ① Species diversity and community stability in the natural state showed some decrease by the distance between bands from 10 m, 6 m, 4 m, to 2 m; ② Soil water content and soil nutrient contents (organic matter, alkaline hydrolyzable nitrogen, fast-acting phosphorus, and fast-acting potassium) presented the same downward trend from 10 m, 6 m, 4 m, to 2 m, but the soil bulk density showed an upward trend from 10 m, 6 m, 4 m, to 2 m; ③ In the 0-60 cm soil layer, species diversity indices and soil physicochemical properties showed significant or highly significant correlations (p＜0.05) between the different band spacings of Populus simonii, among which the most significant correlation with each species diversity index was the soil bulk density, and the most significant correlation with each soil physicochemical property was the Margalef richness index. [Conclusion] For the artificial afforestation process of Populus simonii in the Naiman sand region of the Horqin sandy land area, an appropriate increase in the spacing between row-banded small-leaved poplar plantations can effectively improve the production level and ecological benefits of the forest land, and a spacing of 10 m is appropriate.