In this study

we used soil physicochemical properties analysis were conducted in artificial Camellia oleifera forests with different ages (1 years and 15 years) in red soil hilly region of Yushan County

Jiangxi Province. Soil samples were collected in different slope positions (upper slope

middle slope

and lower slope) and different soil layers (0 – 10 and 10 – 20 cm). The results showed that: (1) with the increasing of the artificial Camellia oleifera forest age

there was a decrease in soil bulk density

and an increase trend in soil water content and field capacity; significant increases in soil pH value and organic matter content of middle and lower slope (P<0.05) were observed

and the contents of total nitrogen

total phosphorus and total potassium decreased; soil physicochemical properties improved after horizontal Planting Camellia oleifera in red soil slope land

and soil water content

field capacity and soil organic matter content increased in varying degrees

while soil bulk density and nutrient (N

P

K) content decreased

therefore reasonable fertilization

especially the application of P fertilizer

should be pay more attention to meet the need of the production during tending process of Camellia oleifera forest. (2) The soil physicochemical properties showed certain regularity in different slope positions. The soil bulk density of different slope positions followed the order of upper slope < middle slope < lower slope; and the water content of upper slope was the maximum

and the minimum field capacity was in lower slope; soil organic matter and total potassium both followed the order of upper slope < middle slope < lower slope

and there was significant difference in soil organic matter among different slope positions

while there was no significant spatial difference in total nitrogen and total phosphorus. (3) Compared with the 1 year Camellia oleifera forest

the spatial difference of soil physicochemical properties tended to be homogeneous in the 15 a stands. In order to reveal soil and water conservation effect of the combination measures of horizontal soil preparation and artificial Camellia oleifera

and to provided the theoretical basis for the comprehensive management of soil erosion and for the sustainable management of artificial tea tree land in the southern red soil slope.