上海滨水绿地美景度与植物多样性的关联研究

A Case Study in Relationship Between Scenic Beauty and Plant Diversity of Shanghai Waterfront Green Space

滨水绿地的有限立地条件制约了植物运用,通过研究滨水绿地的植物多样性情况,探索植物多样性对植物景观的影响,能够帮助城市滨水绿地兼顾植物景观设计与生态效益。选取上海代表性滨水绿地徐汇滨江,实地调研14块样地,测算了样地的植物多样性指标,运用美景度评价(Scenic Beauty Estimation,SBE)法进行景观评价,利用Spearman相关性分析二者的关联性。结果表明,徐汇滨江的植物多样性偏低,乔木物种多样性高于灌木;景观评价多为正向;景观效果与垂直层数、总物种数、灌木物种数、总Simpson指数、总丰富度、灌木丰富度呈现正相关。最后提出滨水绿地景观和植物多样性同步提升的建议:进一步丰富植物配置与造景层次,增加灌木应用,保证基本的植物生长与养护。

The limited site conditions of waterfront green space restrict the use of plants.Studying the plant diversity of waterfront green space and exploring the impact of plant diversity on plant landscape can help urban waterfront green space give consideration to plant landscape design and ecological benefits.This paper selects Xuhui Riverside,a representative waterfront green space in Shanghai,as an example to investigate 14 sample plots.The plant diversity index of the sample plot was calculated,the SBE method was used for landscape evaluation,and the Spearman correlation was used to analyze the correlation between the two.The results showed that the plant diversity of Xuhui Riverside was low,and the species diversity of arbor was higher than that of shrub;Landscape evaluation is primarily positive;Landscape effect is positively correlated with vertical layers,total species,number of shrub species,total Simpson index,total richness,and shrub richness.Finally,some suggestions are put forward to improve the landscape and plant diversity of waterfront green space simultaneously:further,enrich the level of plant configuration and landscaping,increase the application of shrubs,and ensure the essential plant growth and maintenance.