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应用１９５ 株刺槐（ Ｒｏｂｉｎｉａ ｐｓｅｕｄｏａｃａｃｉａ） 优势木解析木资料，在比较多个树高生长模型基础上，选择Ｒｉｃｈａｒｄｓ 生长函数Ｈ＝ ａ（１ —ｅ－ ｂＡ）ｃ 作为辽宁省刺槐优势高生长模型。在分析优势高生长过程的基础上，确定基准年龄为１２ 年，立地指数级距为２ ｍ ，在５ ～１５ ｍ 范围内划分为５ 个指数级，用差分法展开导向曲线编制了单形立地指数表。应用分组整理后解析木资料，拟合出最优多形立地指数模型，并解决了立地指数曲线不过指数点的问题，编制了多形立地指数表。检验结果表明，所编单形与多形立地指数表精度均较高，且以多形立地指数表精度更高，适用性更强，客观正确评价刺槐人工林立地生产力。
A total of 195 Robinia pseudoacacia wood samples were used to analyze the wood quality data. Based on the comparison of multiple tree height growth models, Richards growth function H = a (1 -e- bA) c was selected as the dominant high-growth model of black locust in Liaoning Province. Based on the analysis of the superior growth process, the base age was determined to be 12 years, the site index distance was 2 m, and the index was divided into 5 levels in the range of 5 ~ 15 m. Index table. After grouping and analyzing the wood data, the optimal polymorphic site index model was fitted and the problem of site index curve but exponential point was solved. A polymorphic site index table was prepared. The test results show that the accuracy of the single-form and multi-form site index tables are high, and the multi-form site index table has higher accuracy and applicability, objectively and correctly evaluating the locust productivity of the locust plantation.