城市公园景观恢复性量化评价模型

Quantitative Evaluation Model of Landscape Restoration for Urban Parks

从环境心理学的角度,引入恢复性景观的概念,借鉴心理物理学的研究方法,选择了福州市3所具有代表性的城市公园,对园中的绿色景观、蓝色景观及灰色景观进行景观恢复性评价实验。借鉴谢弗图片分析法,通过Photoshop软件统计像素值,进行景观类型的划分及占比计算,得出各类景观占比的客观数据;通过恢复性评价实验得出恢复性评分的主观数据;通过SPSS相关性分析,得出各类景观占比与其恢复性评分之间的关系,并通过曲线估算进一步探究其具体的函数关系,根据主客观数据的拟合结果,分别得到了3类景观的占比与恢复性评分之间的关系模型。分别选择3类景观中具有最佳拟合优度的关系模型,最终综合得出适用于城市公园的景观恢复性评价模型。通过此模型能够将客观的景观占比数据转化为主观的恢复性评分数据,模拟出人们在城市公园中的恢复性心理感受,进而为城市公园的恢复性景观营造与提升提供理论支持和数据支撑。

From the point of view of environmental psychology,this study introduces the concept of restorative landscape,draws lessons from the research method of psychophysics,and selects three representative urban parks in Fuzhou City to carry out landscape restoration evaluation experiments on green landscape,blue landscape and gray landscape in the garden.Based on Schaeffer's image analysis method,the objective data of landscape proportion were obtained by Photoshop software to calculate pixel value and divide landscape type.And the subjective data of restorative score were obtained by restorative evaluation experiment.Based on SPSS correlation analysis,the relationship between the proportion of landscape and its restorative score was obtained,and the specific functional relationship was further explored by curve estimation.According to the fitting results of subjective and objective data,the relationship model between the proportion of three kinds of landscape and the restorative score was obtained.The relationship models with the best goodness of fit in the three types of landscape were selected,and the landscape restoration evaluation model suitable for urban parks was obtained.Through this model,the objective landscape proportion data can be transformed into the main pipeline recovery score data,so as to simulate people's restorative feelings in urban parks,and then provide theoretical and data support for urban park restoration landscape construction and promotion.