Abstract:

Sabina vulgaris is a unique evergreen conifer shrub and expands its area by the growth of stolon along the ground surface on which adventitious roots are formed and absorb water and nutrient. Therer is notable difference between the thickness of sand layer and sprouting of adventitious roots, especially between the great thickness sand layer and the other three types. Minor thickness of sand layer is enough to better off the soil water content in the soil layer (0～10 cm),while the soil moisture content decreased on the condition of great number sprouted adventitious roots, as a result, it is difficult for the adventitious roots to sprout. When the soil moisture content is below 1.0%, it is a question for adventitious roots to sprout. The adventitious roots was able to sprout on the 2-year-old stolon on the condition in which the sand is easily accumulated, even on the 9-year-old stolon on the medium and great thickness of sand layer. This indicates that the age is not the key factor for restricting the adventitious roots to sprout.

Key words: Sabina vulgaris, Adventitious roots, Soil moisture content, Mu Us sandland