Yao-Sheng Hu, Xu-Yang Yao, Yan-Hong Liu
Ying Yong Sheng Tai Xue Bao. 2014 Mar;25(3):632-8.
The typical forest communities under four different succession stages in Changbai Mountains were selected to study the stoichiometric traits of stems and leaves of dominant species in different layers, and the relationships between these stoichiometric traits and terrain factors. The results showed that leaf nitrogen content (LNC) was significantly positively correlated with leaf phosphorus content (LPC) and stem nitrogen content (SNC), and positively with stem phosphorus content (SPC). The LPC was positively correlated with SPC and negatively with leaf N/P, stem N/P. The leaf N/P was positively correlated with stem N/P. SNC was positively correlated with SPC. There were significant differences in the stoichiometric traits of the plant species at tree layers among the different succession forest communities, while no obvious difference in shrub layers except for leaf N/P. Based on RDA analysis, it indicated that the plant communities in the Changbai Mountains is N-affected in the primary stage of succession, while N- and P-affected in the mid and later stages with a stronger impact from P.
选取长白山4个不同演替阶段的典型森林群落，研究不同层次优势种茎和叶的化学计量特征，以及这些化学计量特征与地形因子之间的关系。结果表明，叶片氮含量（LNC）与叶片磷含量（LPC）、茎氮含量（SNC）显著正相关，与茎磷含量（SPC）呈正相关。LPC与SPC呈正相关，与叶片N/P、茎N/P呈负相关。叶片N/P与茎N/P呈正相关。SNC与SPC呈正相关。不同演替森林群落乔木层植物种的化学计量特征存在显著差异，而灌木层除叶片N/P外无明显差异。基于冗余分析（RDA）表明，长白山植物群落在演替初期受氮影响，而在演替中后期受氮和磷的影响，且磷的影响更强。
