不同立地条件5年生马尾松营养特性比较研究

The Comparative Study on the Nutrient Characteristics of 5-Year-Old Pinus massoniana on Different Site Conditions

对福建邵武不同立地马尾松幼林的营养特性进行比较。研究结果表明 ,随着立地质量下降 ,其林分与各器官的N、P、K的含量和积累量都有不同程度减少 ;就各器官N、P、K积累量的分配率而言 ,干、枝、叶呈现不同程度下降 。

The study results indicate that the N,P and K contents and stocking of the Pinus massoniana young stands and various organs all reduce to different extents with the decrease of site quality;as for the distribution rates of N,P and K stocking of various organs,those of stems,branches and leaves asume decrease to different extents,whereas those of barks and roots show as increase to different extents.