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本文采用数量化地位指数方法实现了小青杨、北京杨、小钻杨、健杨等辽西主要适宜杨树种类间的立地质量代换评价，建立了６对树种转换评价的配对方程。在此基础上进行了适地适树分析，将江西河滩地分为５个地力等级，分析了不同立地条件下各树种生长特性，在高地位质量条件下健杨生长最好，在中等立地条件下小钻杨为最优造林树种，在立地条件较差时小青杨、小叶杨较为适宜，北京杨则不作为辽西今后大力发展的树种。最后为不同地力等级内的各立地类型设计了最优造林树种和主要的改土培肥措施。
In this paper, the evaluation of the site quality of Populus euphratica, Populus euphratica, Populus euphratica, Jiangyang and other main poplar species in Liaoxi was carried out using quantitative index of position method, and the pairing equation of 6 pairs of tree species conversion evaluation was established. On this basis, the suitable tree-fitting analysis was carried out, and the landform of Jiangxi River was divided into five grades of soil fertility. The growth characteristics of each tree species under different site conditions were analyzed. The growth of Jian Yang was the best under high-quality condition. Under the small drilling Yang is the best afforestation tree species, when the site conditions are poor, Populus simonii, Populus simonii is more appropriate, Beijing Yang is not as the future development of Liaoxi tree species. Finally, the optimal afforestation tree species and the main measures of soil improvement and fertilization are designed for each site type in different soil fertility levels.