Research Progress of 3D Digital Information Modeling of Urban Green Space

Objective With the rapid development of urban information models, 3D virtual scenes, and digital twin cities, the methods and standards for city information modeling have been widely adopted. Traditional spatial data storage and exchange methods are often based on two-dimensional drawings and documents, which cannot meet the current practice demands. Urban green spaces are a vital component of city infrastructure, providing various ecosystem services. To effectively digitalize the process of urban green space planning, design, and management, it is essential to establish spatial information models that can accurately reflect the characteristics of these spaces. Additionally, a monitoring and feedback mechanism based on digital twin models of green spaces should also be established. As living organisms, urban plants have unique branching structures and growth processes that differentiate them from conventional grey infrastructure. Therefore, traditional component-based information models cannot address the modeling requirements of green spaces, which will need further investigation and enhancement.