长白山地区天然赤松林群落学特性的研究

STUDY ON COMMUNITY CHARACTERISTICS OF NATURAL PINUS DENSIFLORA FORESTS IN CHANGBAI MOUNTAIN AREA

对赤松（ＰｉｎｕｓｄｅｎｓｉｆｌｏｒａＳｉｅｂ．ｅｔＺｕｃｃ．）群落的组成、生活型谱、更新、演替及主要类型林分的生长特点等的分析结果表明：长白山地区的天然赤松林群落种类组成简单，缺乏固有种、群落尚处于演替的初级阶段，干扰行为将严重地影响着群落的演替方向；更新种群呈弱度的聚集型空间格局，且缺乏演替层；榛子─赤松林的生产力较高．胡枝子─赤松林、草类─赤松林次之，杜鹃─赤松林生产力最低。此外，文章还对不同类型的林分的经营措施提出了建议。

The component, life form. regeneration, succession and growth characteristics of natural Pinus densiflora communities (PDC) were analysed. Lacking native species,the element of species was simple in natural PDC in Changbai mountain area. The natural PDC succeeded in prime stage, and its procession direction were deeply affected by disturbance. The pattern was weak aggregative for regeneration populations. Productivity of the hazel-PDC was the highest in severeal main types of PDC, and that of the bush clover-PDC and the grass-PDC were following the former’s, that of the daurian rhododendron-PDC was the lowest. Management methods of different types of PDC were also proposed.