Herbaceous ornamental plants with conspicuous aesthetic traits contribute to plant invasion risk in subtropical urban parks

Siwei HU, Cheng JIN, Ruiyan LIAO, Li HUANG, Lihua ZHOU, Yuxiao LONG, Min LUO, Chi Yung JIM, Wenhao HU, Dunmei LIN, Shengbin CHEN, Changjing LIU, Yanxue JIANG, Yongchuan YANG

Research output: Contribution to journalArticlespeer-review

Abstract

Global ornamental horticulture is a major pathway for plant invasions, while urban parks are key areas for introducing non-native ornamental plants. To react appropriately to the challenges (e.g., biological invasion issues) and opportunities (e.g., urban ecosystem services) of herbaceous ornamentals in urban parks, we conducted a comprehensive invasive risk assessment in 363 urban parks in Chongqing, a subtropical city in China. The results found more than 1/3 of the 119 non-native species recorded in urban parks had a high invasion risk, and more than five species had potential invasion risk in 96.29% of the study area, indicating herbaceous ornamentals in urban parks are potentially a pool of invasive species that deserves attention. Moreover, humans have chosen herbaceous ornamentals with more aesthetic characteristics in urban parks, where exotic species were more prominent than native species in floral traits, such as more conspicuous flowers and longer flowering periods. The findings can inform urban plant management, provide an integrated approach to assessing herbaceous ornamentals' invasion risk, and offer insights into understanding the filtering effects of human aesthetic preferences. Copyright © 2023 Elsevier Ltd. All rights reserved.

Original languageEnglish
Article number119059
JournalJournal of Environmental Management
Volume347
Early online dateSept 2023
DOIs
Publication statusPublished - Dec 2023

Citation

Hu, S., Jin, C., Liao, R., Huang, L., Zhou, L., Long, Y., Luo, M., Jim, C. Y., Hu, W., Lin, D., Chen, S., Liu, C., Jiang, Y., & Yang, Y. (2023). Herbaceous ornamental plants with conspicuous aesthetic traits contribute to plant invasion risk in subtropical urban parks. Journal of Environmental Management, 347, Article 119059. https://doi.org/10.1016/j.jenvman.2023.119059

Keywords

  • Herbaceous ornamental plants
  • Invasive risk assessment model
  • Species distribution model
  • Ornamental traits
  • Urban park management

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