北京玉渊潭樱花景观评价模型构建
Construction of the Cerasus Plantscape Estimation Model in Beijing Yuyuantan Park

采用SBE法对北京玉渊潭公园的7类20个樱花植物景观群落进行评价，结合SD语义分析法分析影响樱花景观效果的主要因素，最终建立樱花景观预测模型。评价结果表明，层次感、色彩丰富度、光感、林下层统一度及乔木层枝叶整齐度5个指标是影响春季樱花景观质量的主要因素。玉渊潭中滨水樱花景观SBE均值最高，广场樱花景观均值最低；公园可营造更多滨水樱花景观，丰富岸线结构，调整植物群落的层次感及林下层的统一度和枝叶整齐度，并充分应用早春返青早的宿根花卉。
The scenic beauty estimation (SBE) method was adopted to assess plantscape value of 20 representative Cerasus communities in Beijing Yuyuantan Park. Combined the SD semantic analysis method to analyze the influential elements which affected the spring Cerasus plantscape mostly, the final Cerasus landscape forecasting model was established. The results showed that the layering, color richness, light, unity degree of understory layer and uniformity were the main factors that affected the Cerasus landscape. The waterfront landscape in Yuyuantan Park obtained the highest score of SBE, and the average score of square landscape was the lowest. Some suggestions were given, such as to build more waterfront landscape, enrich the waterline structure, adjust the layering and the unity degree of understory layer of the communities, and use more perennial flowers which turning-green earlier in spring