Abstract [Background] In recent years, due to the single plant configuration in slope revegetation engineering, especially the high proportion of grasses causing poor late landscape and serious species degradation, enriching the diversity of spraying plant community species, and improving the community stability has become an important strategy to solve the problem. [Methods] Based on data collection and field investigations, 8 kinds of indigenous plants with wide distribution, large seed amount, rapid growth, and long green period were selected for hyproseeding experiment for the first time. Taking slope on Dongxing quarry as the study object, these 8 plants was applied through external-soil spray seeding. Then a year-long investigation was conducted, indicators such as plant height, density and plots species diversity were continuously observed and recorded to assess adaptability and slope protection effects of these plants. To compare the vegetation restoration effect of experimental plots with that of project area, through the quadrat investigation method, type of plant, species and quantity of each area were counted a year after the completion of construction. Main plant community species diversity was studied by using species richness index, Shannon-Wiener index, and Pielou evenness index. [Results] Results showed that Plantago asiatica, Buddleja asiatica Lour. , Vitex negundo var. cannabifolia ( Sieb. et Zucc. )Hand. -Mazz. , Ricinus communis, and Hibiscus mutabilis, these indigenous plants were suitable for ecological restoration and soil and water conservation on the slope. After hyproseeding, these 5 kinds of seeds germinated and developed seedling gradually in a month. The plant height and crown width of these plants increased month by month, showing strong ability to adapt the slope environment. As the communities competed and developed, the plant density decreased, but a number of plants still survived in the competition. The developed root system resisted a certain degree erosion, having strong soil reinforcement ability. The experiment plot achieved fine vegetation coverage effect in 3 ~6 months, and the growth rate of these plants reached the demands of the acceptance of slope greening engineering. In addition, those tested plants were located in the seeding area, so it was not easy for the seeds to spread and cause ecological invasion. Having the characteristics of higher construction efficiency, optimal ecological recovery effect, significant slope-protection, easy to harvest or purchase and other advantages, these plants may provide conditions for slope stability and plant community succession. [Conclusions] The results showed that the application of these plants in slope revegetation engineering was feasible and having high promotional value. However, the ratio of the amount of seeds should be adjusted to ensure the growth space of shrubs to maintain the stability and diversity of the late plant community on the slope.
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