结合森林资源二类调查，以立地因子为依据，运用数量化回归方法，建立一系列方程，对广西林朵林场的林地进行杉木立地类型的划分和立地质量评价研究．结果表明：海拔、坡向、坡位和土层厚度是影响杉木生长的主导因子。所建立的方程具有较高的评价精度，可根据具体情况及对精度要求，选用适当方程． Combining with the second type of forest resources survey, based on site factors, using quantitative regression method, a series of equations were established to study the site classification and site quality evaluation of Chinese fir forest in Guangxi LinDuo Forest Farm. The results show that elevation, aspect, slope position and soil thickness are the main factors affecting the growth of Chinese fir. The established equation has a higher evaluation accuracy, according to the specific circumstances and the accuracy requirements, choose the appropriate equation.