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城市公园作为城市绿地的重要组成部分,其植物多样性是园林绿化质量的重要标志。本研究采用典型样方法对选定的海口市10个城市公园的420个样方的植物多样性现状进行了调查研究,结果表明:(1)海口城市公园植物物种丰富,共有植物88科244属320种,但乡土植物应用比例不高;植物群落优势种明显,主要是椰子、黄金榕和细叶结缕草等;(2)不同类别公园中,综合公园植物多样性最高;各植物层次上,植物多样性总体趋势为:草本层>乔木层>灌木层,但各公园之间又有差异。根据研究结果,建议加强利用优秀乡土植物资源,依据近自然植物群落设计理念,构建多层次、多物种、多生境和多功能的复合生态系统,提高园林绿化质量。
As an important part of urban green space, urban park is an important symbol of the quality of landscaping. In this study, 420 sample quadrats in 10 selected city parks in Haikou City were selected to study the status quo of plant diversity. The results showed that: (1) There are 244 plant species belonging to 88 families in Haikou City Park 320 species, but the proportion of native plants is not high; the dominant species of plant community is obvious, mainly coconut, gold Ficus and Zoysia matrella; (2) Among the different types of parks, the comprehensive plant diversity is the highest; The general trend of plant diversity is: herb layer> tree layer> shrub layer, but there are differences between the parks. According to the results of the study, it is suggested to strengthen the use of outstanding native plant resources and construct multi-layer, multi-species, multi-habitat and multi-functional composite ecosystems based on the design concept of near natural plant communities to improve the quality of landscaping.