Abstract:This paper investigated the biomass dynamics, and the accumulation, distribution and cycling of nutrients in Pinus massomiana and Pinus elliottii plantations. Pinus massomiana is a native species while Pinus elliottii is introduced to the region. The results showed that the growth of P. massomiana plantation was slower than that of P. elliottii during the juvenile stage. However, the trend was reversed in the later stage of the stand development, i.e., P. massomiana grew faster than did P. elliottii. The b...