Habitat and Growth Characteristics of Euchresta japonica in Wuyanling National Nature Reserve

During 20th-30th July, 2020, investigations were carried out on habitat and growth characteristics of 5 distribution areas of Euchresta japonica in Wuyanling Nature Reserve, Zhejiang province. The results showed that Eu. japonica mainly distributed along the stream, at altitude of 830 m-1 078 m, with average canopy density of 70.6%, in average depth of stand soil layer of 14.34 cm, average pH of 4.49, and the average content of soil organic matter of 151.02 g/kg. Associated plant species were mainly Michelia maudiae, Viburnum dilatatum, Carex scaposa, Stauntonia obovatifoliola ssp. urophylla, etc. The total area of Eu. japonica distribution was 3900 m2 in the Reserve. Their mean ground diameter was 3.87 mm, mean height of 40.16 cm, average number of leaves per plant of 3.51. It had extremely significant different of ground diameter of Eu. japonica among the 5 distribution areas (P < 0.01), significant difference of leaf number (P < 0.05), and no significant difference of height (P > 0.05). They were mainly affected by soil pH, soil bulk density, soil water content and soil thickness.