辽东山区森林群落特征的初步研究

Primary Study on Characteristics of Forest Community in Liaodong Mountainous Regions

对天然次生林的群落生活型、结构、红松天然更新、群落演替进行调查。结果表明:浑河源森林公园植物种类以乔灌木为主,即天然森林与杂木林种类居多,占所有种类的近50%,有较大优势,同时反映出该地气候条件比较湿润;柞树出现的点数最多,相对频度最大;核桃楸在天然次生林中重要值为第2位。红松幼树天然更新良好;乔木树种中,假色槭、红松在更新层出现且频率较高,为进展种。核桃楸、落叶松和水曲柳在更新层没有出现,在主林层具有一定的分布,为衰退种。

Forest community living-types, structure, natural regeneration of P. koraiensis and succession of nature secondary forest was surveyed. The results showed that the plant species of Hunhe River Source forest park are mainly shrub. Natural forests and broad-leaved species are in the majority, which have reached nearly 50% , meanwhile reflecting the climatic condition is humid in this district. The relative frequency of Quercus is the largest, which shows that Quercus distributes well-proportioned. The importance value of Juglans mandshurica is for the second in the nature secondary forest. Natural regeneration of younger P. koraiensis is good ; A. pseudo-siebodianum and P. korsiensis are in the updated and the frequency is higher so that they are progress species. There were no J. mandshurica; Larix olgensis and Fraxinus mandshurica in the updated and distribute in the main story, so they are recession species.