Population Structure and Distribution of Camellia chekiangoleosa in Gutianshan NationalNature Reserve

During July and October 2010, tally was made on Camellia chekiangoleosa at permanent sample plot with 24 ha under subtropicalevergreen broad-leaved forest in Gutianshan National Nature Reserve of Qianjiangyuan National Park, Zhejiang province. The results showed thatthere were 7 565 C. chekiangoleosa trees, among them, individuals with 1 cm≤DBH＜2 cm had 3 912, accounting for 51.7%. The diameter class ofthe population showed J-type, indicating good regeneration. The life expectancy of the population decreased with the increase of DBH. The survivalcurve showed Deevey type III, indicating mass propagation. The distribution of C. chekiangoleosa in was clustered under evergreen broad-leavedforest above 550 m elevation and in the valley below 550 m elevation.