Chinese fir or Cunninghamia lanceolata is a dominant native species for timber production in southern China. With the rapid expansion of planting acreage and extensive practice of successive rotations, the urgent need to sustain long-term productivity of the forested land with this species has attracted nationwide attention. The present project is concerned with the nutrient flux in the process of hydrological cycling in a forest ecosystem, which is believed to be an important aspect enabling the system to ...