Abstract:
From December 1
st, 2020 to November 30
th, 2023, the leaf expansion stage, flowering period, flower color, and flower smell of woody ornamental plants in Chengdu were investigated, and a comprehensive understanding of the basic resources of woody ornamental plants in Chengdu was obtained by combining with relevant literature. The characteristics of flower color, flowering period, viewing period, and flower smell were analyzed to provide scientific basis and data support for Chengdu to build a garden city. The results showed that: (1) There were 123 species of woody ornamental plants in Chengdu, including 44 families and 83 genera, among which Rosaceae (15.45%), Magnoliaceae (12.20%), and Fabaceae (8.94%) had the highest number of species. (2) Woody flowers could be enjoyed throughout the year in Chengdu, but mainly in spring and summer, accounting for 87.80% of the total number of woody ornamental flower plants. (3) The flowering period of woody ornamental plants ranged from seven days to more than half a year, with majority blooming for 30-60 days representing about 55.28% of total species. (4) The woody ornamental plants were rich in flower colors, including red, yellow, green, white, purple, blue, with whites (42.28%) and reds (31.71%) as the main clours. (5) Among these flowering woody ornamental plants, there were 98 species with pleasant fragrance, accounting for 79.67% of all flowering woody ornamental plants in Chengdu. Based on the ornamental characteristics of woody ornamental plants in the urban area of Chengdu, the development and utilization of wild resources can be further increased, which can increase the diversity of urban forests, promote the stability of urban forest community structure and build near natural urban forests, while increasing urban landscape diversity and avoiding landscape homogenization.