College of Landscape Architecture, Nanjing Forestry University, Nanjing, Jiangsu, China.
PLoS One. 2020 Oct 2;15(10):e0239849. doi: 10.1371/journal.pone.0239849. eCollection 2020.
Plant landscapes are fundamental components of the green space of urban parks and are often dynamic, changing throughout the year. Winter is a season with poor plant landscape effects in urban park green spaces. However, plant community landscapes in the winter in urban park green spaces could be further optimized. Here, we conducted scenic beauty estimation (SBE) of the landscape factors in 29 winter plant communities in four typical urban parks in Yangzhou, China using partial correlation analysis and multiple linear regression. The standard SBE values of the 29 plant communities ranged from -0.981 to 1.209. Complex plant community landscapes with abundant plant species, beautiful plant community morphology and obvious seasonal changes generally received high scenic beauty scores. Six landscape factors, including the diversity of plant species, the proportion of evergreen tree species, the morphological characteristics of plants, the ground cover rate, the overall sense of harmony and the color composition, greatly influenced the scenic beauty of the plant landscape in the winter. Generally, the results of this study provide insight into how the plant community landscape in urban parks could be improved.
植物景观是城市公园绿地的基本组成部分，通常具有动态性，全年都在变化。冬季是城市公园绿地植物景观效果较差的季节。然而，城市公园绿地冬季的植物群落景观仍有进一步优化的空间。在这里，我们采用偏相关分析和多元线性回归的方法，对中国扬州四个典型城市公园的 29 个冬季植物群落的景观因子进行了美景度评估（SBE）。29 个植物群落的标准 SBE 值范围为-0.981 至 1.209。具有丰富植物种类、优美植物群落形态和明显季节变化的复杂植物群落景观通常会获得较高的美景度评分。六个景观因子，包括植物物种多样性、常绿树种比例、植物形态特征、地被率、整体和谐感和色彩组成，极大地影响了冬季植物景观的美景度。总的来说，本研究结果为如何改善城市公园的植物群落景观提供了思路。
