科尔沁沙地位于内蒙古东部,介于大兴安岭、努鲁儿虎山系和松嫩平原间,呈三角形分布,具有重要的战略位置和广袤的面积。尽管光、热、水、土资源潜力很大,但多数由于这些年来未加保护利用,沙化面积急剧增加,风沙危害附近的农业、牧业、交通、工矿、国防事业。本文通过分析科尔沁地区的主要立地因子,从而得出影响植物生长分布的主导因素,并分析提出主要立地条件类型的造林树种。 Horqin Sandland is located in eastern Inner Mongolia, between the Daxinganling, Nuluerhushan and Songnen Plain, showing a triangular distribution, with an important strategic location and vast area. Although there is great potential for light, heat, water and soil resources, most of these areas have been under unprotected use during these years. As a result, the area of ​​desertification has risen sharply, causing wind and sand hazards in the fields of agriculture, animal husbandry, transportation, mining and defense. In this paper, by analyzing the main site factors in the Horqin area, we can draw the dominant factors that affect the distribution of plant growth, and analyze and propose the afforestation species of the main site conditions.