A Study on Planting Techniques to Enhance the Function of Urban Wind Ventilation Forest: In the Case of Wind-Connecting Forest, Seocho-gu, Seoul

Background and objective: This study was conducted to develop Connecting Forest planting technique suitable for urban structure and target site conditions on Banpo-daero Street in Seocho-gu.Methods: Through simulation analysis of planting techniques by type (computer climate model: ENVI-met), the street types were classified into the following categories: bare ground type (1), currently planted with <i>Platanus occidentalis</i> (square pruning) (2), a type that can realistically create a strip green (3), and a type that grows the tree canopy and applies <i>Platanus occidentalis</i> and a strip green in the center of the road (4).Results: In the case of creating a 2-meter-wide band green on the existing street trees in the first row, and multi-layered vegetation using the step-by-step arrangement method of small tree + shrub + herbaceous plants, the temperature of up to 0.15°C rise in the roadway area and the temperature of up to 0.12°C went down in the sidewalk area, and PMV (Predicted Mean Vote) was reduced by up to 1.32 in the multi-layer trench planting area. Particulate matter was concentrated, resulting in an increase of about 40~80㎍/㎥in roadways and sidewalks. In the case of the ideal planting arrangement of the route applying the original tree tree tree street + the green belt 2m + the central green zone, the effect of reducing the maximum 1.6°C in the roadway area and 0.3°C in the sidewalk area was shown, and the result of lowering the temperature throughout the target area was derived. arise from street trees, trench planting and trees in Green Area at the Center Line the concentration of particulate matter in the roadway area increased to about 150<i>μ</i>g/㎥, and the concentration of particulate matter in sidewalks and residential areas decreased. Through simulation analysis, we planted street trees with large trunk widths that are favorable for shade formation (<i>Platanus occidentalis</i>) and maintained the unique tree shape, oval, rather than square pruning, and the composition of the strip greenery consisted of multi-layered plantings based on the terraced layout method by introducing tree species with excellent particulate matter reduction capabilities.Conclusion: This study is meaningful in analyzing the function of connecting forests, which play an important role in urban wind ventilation forests, which are created as a solution to improve the urban environment, such as reducing particulate matter in the city and mitigating heat waves, and suggesting planting techniques that can improve their function.