Effects of the soil under the forests of Picea koraiensis and Pinus sylvestris var. mongolica and the soil covered with litter on the growth of Prunus Ulmus
In this paper, the effects of the subsoil of Picea koraiensis and Pinus
sylvestris and the mulch of litter on the growth of Ulmus pumila were studied. The
results showed that the soil under the forests of Picea koraiensis and Pinus sylvestris
could promote the growth of Prunus Ulmus, but had no obvious effect on the ratio of
dry to fresh plants, and could be planted under the forests of both. However, the litter
cover soil of Picea koraiensis inhibited the growth of Ulmus pumila to some extent.
Therefore, when planting Ulmus pumila in the forest, we should pay attention to the
clearing of its dead branches and leaves.