【摘要】 本文根据南岭山地的地理背景，采用等级系数法数量化逐步回归筛选，拟合了评价立地质量的杉木和马尾松地位指数数量化多元预测模型，为深入评价立地质量，研究了立地因子与土壤肥力状态的关系，并用同样方法拟合了土壤肥力状态因子与杉木地位指数相关模式，为科学经营林地提供依据。更多还原

【Abstract】 According to geographical background of Nanling mountainous region, applying quantified degree coefficient method, by stepwise regression, this paper simulated multi-factors quantitative forecast model for site quality evaluation of Chinese fir and masson pine stands. In order to evaluate quality deeply, the paper further research into the relationship between site factors and soil fertility conditions, and simulated the correlated model between soil fertility conditions and Chinese fir site index by the same method. The results provided scientific basis for forest management.更多还原