Singaporean parks are generally planted and managed, but their contribution to urban diversity may alter over time. This study examined the key growth patterns of managed vegetation and factors influencing floral diversity through short-term observation of vegetation changes in a typical tropical urban park setting. The study selected 222 plots using a 10m × 10m grid in three Singaporean parks and surveyed their species richness and spatial distribution. It studied factors affecting vegetation flourishing or decline using multiple on-site mappings and interviews with managers in 2018 and comparison of these findings with vegetation as it had been planted in 2012 or 2015. The study found that diversity in species and structure and vegetation area consistently increased over time despite regular maintenance. Initially planted vegetation, geographical characteristics, and diverse maintenance activities all played an essential role in shaping the parks’ microhabitats, affecting the emergence and growth of plant species. We argue that the role of spontaneous vegetation is critical in the tropical park context, as it contributes to landscape heterogeneity without intensive maintenance. At the same time, however, not all spontaneous vegetation contributes to floral diversity. The findings may help landscape designers and managers understand the opportunities and challenges of tropical planting which can contribute to the long-term biodiversity of an urban ecosystem.

新加坡公园通常是种植和管理的，但它们对城市多样性的贡献可能会随着时间的推移而改变。本研究通过对典型热带城市公园环境中植被变化的短期观察，研究了管理植被的关键生长模式和影响花卉多样性的因素。该研究在三个新加坡公园中使用 10m × 10m 网格选择了 222 个地块，并调查了它们的物种丰富度和空间分布。它在 2018 年使用多次现场测绘和与管理人员的访谈，并将这些发现与 2012 年或 2015 年种植的植被进行比较，研究了影响植被茂盛或衰退的因素。该研究发现，物种和结构的多样性以及植被面积始终如一尽管定期维护，但随着时间的推移而增加。最初种植植被，地理特征和多样化的维护活动都在塑造公园微生境方面发挥了重要作用，影响了植物物种的出现和生长。我们认为自发植被在热带公园环境中的作用至关重要，因为它在没有密集维护的​​情况下有助于景观异质性。然而，与此同时，并非所有自发植被都有助于花卉多样性。这些发现可能有助于景观设计师和管理人员了解热带种植的机遇和挑战，这有助于城市生态系统的长期生物多样性。我们认为自发植被在热带公园环境中的作用至关重要，因为它在没有密集维护的​​情况下有助于景观异质性。然而，与此同时，并非所有自发植被都有助于花卉多样性。这些发现可能有助于景观设计师和管理人员了解热带种植的机遇和挑战，这有助于城市生态系统的长期生物多样性。我们认为自发植被在热带公园环境中的作用至关重要，因为它在没有密集维护的​​情况下有助于景观异质性。然而，与此同时，并非所有自发植被都有助于花卉多样性。这些发现可能有助于景观设计师和管理人员了解热带种植的机遇和挑战，这有助于城市生态系统的长期生物多样性。