Research on Urban Garden Landscape Planning and Construction Based on Ecological Concepts

As an important part of urban ecology, the planning and construction of ecological landscape gardens is an effective way to improve the quality of urban life. The biodiversity of urban gardens is measured using species diversity indicators such as species richness, Simpson, Shan-Wiener, and Pielou evenness in this paper. The landscape single dynamic attitude, landscape comprehensive dynamic attitude and landscape patch transfer matrix were selected to construct a landscape dynamic change model, and the six urban areas of H city were used as the research object to analyze the landscape pattern of vegetation cover in urban gardens and landscapes. The results showed that among the area indexes on the landscape level in the study area of H city from 2018 to 2022, the maximum patch index, patch density and edge density indexes increased year by year, with an increase of 0.24, 3.42 m*hm-2, and 0.21 hm-2, respectively, in five years. Among the aggregation indexes, the effective particle size index showed an increasing trend, with an increase of 4301.3ha2 in 2022 compared with that in 2018, and the aggregation index showed a gradual decreasing trend, with a decrease of 0.4 in 2022 compared to 2018. By analyzing the landscape pattern, the changes in the landscape pattern can be described, and then the internal mechanism affecting the landscape pattern can be determined, which is of significant significance for the study of urban garden landscape planning and construction. © 2023 Yan Li and Qingli Sun, published by Sciendo.