论文部分内容阅读
根据年龄结构和直径生长图分析研究了浙江省西天目山黄山松阔叶混交林的冠层干扰年表和发展动态。结果表明黄山松在该林地的定居发生在１８６１～１８８０年之间，黄山松定居３０～４０年后，其他阔叶树开始在林下萌发生长，形成目前的黄山松阔叶混交林，该林将被阔叶树取代。林冠平均干扰强度为５．３％（每１０年），意味着在该林地条件下，由黄山松林向阔叶林演替所需的时间约为１９０年。
Based on the age structure and the diameter growth diagram, the canopy disturbance chronology and development of the mixed forest of Pinus taiwanensis and broad-leaved mixed forest in West Tianmu Mountain of Zhejiang Province were studied. The results showed that the Pinus taiwanensis settled in the woodland occurred between 1861 ~ 1880. After the Pinus taiwanensis settled for 30 ~ 40 years, the other broad-leaved trees began to grow under the woods to form the current mixed forest of the broad-leaved Huangshan pine forest, Hardwood tree replaced. The mean canopy intensity was 5.3% (every 10 years), implying that the time required for the succession of the forest from the Pinus tabulaeformis to the broad-leaved forest was about 190 years under this woodland condition.