Sophora alopecuroides, a deciduous tree of Leguminosae, belongs to a variety of Sophora alopecuroides. Sophora alopecuroides has the characteristics of strong drought tolerance, cold tolerance, saline-alkali tolerance, barren tolerance and relaxed growth environment, and can grow well in acidic to alkaline land. Sophora japonica is widely used in landscaping, and it is one of the color-leafed tree species in landscaping such as roads and scenic spots. Sophora japonica not only has the ornamental value of the four seasons landscape, but also can improve the stability of the population and play a good role in landscaping because of its ecological characteristics when mixed with other tree species.

2. Euonymus Jiaodong

Euonymus Jiaodong is an erect or creeping semi-evergreen shrub of Euonymus. Euonymus Jiaodong is a positive tree species, which likes cold and warm, maritime climate, has lax requirements on soil, strong adaptability, cold tolerance, drought tolerance and extremely resistant to pruning and shaping.

It is not only suitable for courtyards, tunnels and buildings, but also suitable for green belts on main roads. Because of its strong resistance to various toxic gases, it can absorb and purify the air, resist dust and vacuum, and is an ideal greening tree species in polluted areas.

3. Elaeagnus angustifolia

Elaeagnus angustifolia alias: Qilixiang, Xiangliu and Elaeagnus angustifolia have strong vitality and are characterized by drought resistance, sandstorm resistance, saline-alkali resistance and barren resistance. Elaeagnus angustifolia has developed lateral roots and wide roots. In loose soil, many nodules can be produced, among which nitrogen-fixing rhizobia can also improve soil fertility and improve soil. The lateral branches germinate strongly and the terminal buds grow weakly. Dense branches usually form dense clusters. After the branches are buried by sand, adventitious roots are easy to grow, which has the function of windbreak and sand fixation.