I. Research background and significance

With people's increasing attention to the ecological environment and the promotion of ecological engineering, the under-forest economic model has gradually attracted widespread attention. Perennial flowers, as a kind of plant resources with unique ecological and economic values, have broad application prospects in the economic model under the forest. Therefore, it is of great significance to carry out the experimental research on the application of perennial flowers in the under-forest economic model for exploring the sustainable development model of under-forest economy and optimizing the ecological environment.

Second, the biological characteristics of perennial flowers

Perennial flowers refer to perennial herbs, which have the characteristics of strong adaptability, fast growth and easy reproduction. Its root system is developed, it can adapt to different environmental conditions and has strong resistance. Perennial flowers have a wide variety and rich colors, which can meet the needs of different gardens and green spaces. In landscape application, perennial flowers can not only improve the ecological benefits of green space, but also bring rich color changes to urban landscape.

Third, the definition and mode of under-forest economy.

Under-forest economy refers to a new economic model that uses forest land resources and combines planting, breeding and leisure tourism under the forest to realize diversified forestry management. Under-forest economic model includes under-forest planting, under-forest breeding, under-forest product collection and processing, forest tourism and so on. Among them, undergrowth planting is one of the important contents of undergrowth economy, and perennial flowers have a good application prospect in undergrowth planting.

Fourth, the application value of perennial flowers in under-forest economy

1. Ecological value: Perennial flowers can adapt to different environmental conditions, provide a stable plant community for the under-forest ecosystem, and improve the stability of the ecosystem. At the same time, perennial flowers can also absorb carbon dioxide in the air, purify the air and improve the environmental quality.

2. Economic value: Perennial flowers have high ornamental value and economic benefits. In garden landscape, perennial flowers can improve the ecological benefit and beautification effect of green space, and bring rich color changes to urban landscape. In addition, perennial flowers can also be used in medicine, food and other fields, with high development and utilization value.

3. Social value: The application of perennial flowers in under-forest economy can promote the adjustment of rural industrial structure and economic development. At the same time, the planting and development of perennial flowers can also promote the development of related industries, such as tourism and processing industry, thus creating more employment opportunities and social benefits.

Experimental design of verb (abbreviation of verb)

1. experimental site: select representative woodlands as experimental sites, such as woodlands with different landforms such as mountains and hills.

2. Experimental materials: Different varieties of perennial flowers were selected for experiments, such as Viola yedoensis and Paederia henryi. At the same time, it is necessary to prepare suitable experimental materials such as fertilizers and pesticides.

3. Experimental method: Using random block design method, different varieties of perennial flowers were planted in different terrain woodlands, and a control group was set up. Observe and record the growth, adaptability and interaction with the surrounding environment of perennial flowers. Regular maintenance and management such as watering and fertilization are carried out to ensure the normal growth of perennial flowers.

4. Data collection and analysis: By observing and recording the growth of perennial flowers, collect relevant data, such as growth speed, reproduction, stress resistance, etc. Using statistical methods to process and analyze the data, and compare the application effects of different varieties of perennial flowers in the economic model under the forest.

5. Results and discussion: According to the experimental results, the differences of application effects of different varieties of perennial flowers in the economic model under the forest and their reasons were analyzed and discussed. At the same time, combined with previous research results and practical experience, this paper makes a comparative analysis and puts forward targeted suggestions and prospects.

6. Conclusion and prospect: Summarize the experimental results, draw a conclusion, and point out the application effect and development prospect of perennial flowers in the under-forest economic model. At the same time, the problems that need to be further solved and the future research direction are pointed out, and the future development trend and application prospect are predicted and analyzed, which provides reference for the follow-up research.