A Study On Broad-leaved Korean Pine Forest Dynamics Modelling

In order to clearly understand the dynamics mechanism about broad-leaved Korean pine forest(BKPF) and simulate its dynamics mechanically, a simulation model is demanded through which we can simulate the long-term dynamics of BKPF under different pine cones picking intensity and hunting for grey squirrels (Sciurus vulgaris) in different intervals. By considering the effective dispersal of seeds by animals, the human disturbance and the masting behavior of Korean pine (Pinus koreansis), a new gap model integrated seed-bank and regeneration dynamic model, based on the classical gap model, is established.The paper indicated that the suitable picking proportion of cones must be no more than 45%, otherwise the Korean pine can not regenerate normally, by simulating BKPF dynamics under different cone picking intensities. By simulating the long-term effect of hunting squirrel on BKPF, we found squirrel population destroyed greatly and easily cause population extinction if hunting every year, then affect the regeneration of red pine, while hunting in the squirrel springing year, even the large intensity of hunting did not affect the regeneration of Korean pine.