按照代表性立地条件,通过对山东省黑松、赤松的233块人工林标准地数据的综合分析,验证了黑松、赤松同编一个立地指数表的可行性。黑松、赤松的导向曲线方程为Richards式,其判定系数为0.958 0。运用相对优势高法,编制了山东省松类立地指数表,其基准年龄为30a,指数级距为1m,立地指数级数为5—12m。拟合显著性检验和预测精度检验表明所编地位指数表精度较高,可用于山东省黑松、赤松人工林立地质量评价。用于编表的233块标准地中,59.4%的标准地的立地指数为7—9m指数级,属于中等立地质量。

Data from 233 sample plots of Pinus thunbergii and Pinus densiflora plantation were collected at different site conditions in Shandong Province.Firstly,the feasibility was verified in establishment of a common site index table for Pinus thunbergii and Pinus densiflora.The guide curve equation was Richards equation for Pinus thunbergii and Pinus densiflora,and the coefficient of determination (R ²) was 0.958 0. Then,site index table was established by means of relative dominant height,in which the baseline age was 30a,the interval of site index class was 1m,and the site index ranged from 5m to 12m.The site index table was demonstrated to be of high accuracy through significance test and prediction accuracy test,and it was applicable for site quality evaluation for Pinus thunbergii and Pinus densiflora planation in Shandong Province.The site index varied from 7m to 9m for 59.4% of the total 233 sample plots,and these sample plots were grouped into medium site quality.