<正>1987～1988年在江西省枫树山林场浮东分场不同林龄和立地条件的杉木林中设置12块标准地,分别调查杉木生长情况、分析土壤理化性质、测定植株养分含量,并应用方差分析、主成分分析和聚类分析等方法以揭示杉木林营养质量的影响要素及其变化规律。母岩、地形条件、林龄、风和土壤水分含量对杉木林营养质量都有影响,尤以母岩、地形条件和林龄的影响较为显著。土层厚度、A+AB层厚度、石砾含量、有机质、全氮、水解氮、有效磷和速效钾等含量是评价杉木林营养质量和划分立地营养条件类型的主要因子,而立地营养条件类型则是林分营养管理的基础。

In 1987-1988 twelve sample plots were established in Chinese fir plantations of different age and site conditions in Fudong Forest Farm, Jiangxi province. Tree growth, soil properties and needle nutrient content were investigated in respect to the development stages of stands. By means of covariance analysis, principal compenent analysis and cluster analysis, the factors which affect the nutritional quality and their variation were appropriately discussed. Mother rocks, topographic conditions, stand stage, wind soil water content affected considerably the nutritional quality of Chinese fir trees, particularly with even more prominence of the first three, Thickness of soil and A + AB layer and contents of stones, organic matter, total nitrogen, hydrolized nitrogen, effective phosphorus and quick potassium were important factors for evaluating nutritional quality of Chinese fir stands and classification of site nutritional types which is important for nutritional management of Chinese fir plantations.