Studies of the forest canopy, the vegetation stratum under canopy, the forest floor and the differences in water-holding capacity of soil horizon (0-40cm) and in soil permeability are made for the Ge's evergreen-chinquapin natural stands and plantations in Sanming, Xinke. The results show that the total water-holding capacitf of the Ge's evergreen chinquapin natural stands has increased by 225.131 t/ha as compared with its plantations and by 296.558 t/ha as compared with the Nanmu plantations, and that the steady infiltration value of the soil amounts to 8.09 mm/min, which is 3.3 times as much as that of the Ge's evergreen chinquapin plantations and 25.3 times as much as that of the Nanmu plantations. It is obvious that the Ge's evergreen-chinquapin natural stands have a splendid water conservation function.