Preliminary Study on the Pattern Models of Seed Germination Process in Chinese Pine(Pinus tabulaeformis) Woodland

The natural forest regeneration of Pinus tabulaeformis largely depended on its seed germination in woodland.A series of theoretical models were provided in this paper,and of which Model of Demesne Distribution was fitted with experimental data.The results showed that the contents of SOD and MDA of Chinese pine seed appeared a typical negative exponential relationship with its frequency.Regression estimate of non-linear parameter showed that all the three models proposed in this paper could simulate the spatial distribution of Pinus tabulaeformis seed.In addition,the ecological significance of each parameter was alsodiscussed,which could provide us the spatial distribution references of Pinus tabulaeformis seed.