Floristic and Ecological Studies of Natural Seedlings in the Lower Subtropical Forest in Heishiding, Guangdong Province Dynamics of biomass and net primary productivity in succession of south subtropical forests in Southwest Guangdong Altitudinal changes in active and recalcitrant soil carbon pools of forests in the Dinghu Mountains Seed Germination and Storage of Woody Species in the Lower Subtropical ForEst SEED GERMINATION AND SEEDLING GROWTH OF 24TREE SPECIES IN LOWER SUBTROPICAL FOREST