Site description
This study was conducted in Chebaling National Nature Reserve in the
Guangdong Province of southern China (114°09′–114°16′E,
24°40′–24°46′N), with elevation ranging from 330 m to 1256 m above sea
level. The climate is a typical
subtropical monsoon,
with mean annual temperature and mean annual precipitation with 19.6 °C
and 1,468 mm (He et al. , 2021). The vegetation is well-preserved
subtropical evergreen broad-leaved forests, dominated by Schima
superba, Machilus chinensis, and Eurya nitida . Soils are
classified in the ultisol order and the adult suborder according to the
USDA soil classification system
(Zhou
et al., 2013).