摘要
以三山五园绿道为研究案例,通过ENVI中的非监督分类分析,提取出天际线比例、开阔度、绿视率和道路比例4个评价指标,利用美景度评价法(SBE)确定景观的丰富度与层次性、标志性景观的可见性和景观的自然性3个指标的基础值,结合熵值赋权法对7个指标的权重进行计算,最后建立了绿道景观美学评价模型。结果表明,三山五园绿道景观资源缺乏管控,规划建设水平不均一,由于城市化的影响,遭受不同程度的侵蚀,景观美学质量存在明显差异,不能充分发挥其美学功能、游憩功能及生态功能等。
Taking Three Hills and Five Gardens Greenway as a case study, the unsupervised classification analysis of ENVI was used to extract four evaluation indicators of skyline proportion, openness, green vision ratio and road proportion, and the beauty of the landscape was determined by SBE. The basic values of richness and gradation, visibility of landmarks, and naturalness of landscapes were used to calculate the weights of the seven indicators based on the entropy weighting method. Finally, an aesthetic evaluation model for greenway landscapes was established. The results show that the landscape resources of Three Hills and Five Gardens Greenway lack of management and control, and the level of planning and construction is not uniform. Due to the impact of urbanization, it suffers from erosion of different degrees. There are obvious differences in landscape aesthetic quality, and it cannot fully exert its aesthetic functions, recreational functions and ecological functions.
作者
李雪莹
齐童
刘传安
张国庆
LI Xueying QI Tong LIU Chuanan ZHANG Guoqing
出处
《现代城市研究》
CSSCI
2018年第4期45-55,共11页
Modern Urban Research
基金
北京市自然科学基金项目(8142008)
关键词
风景园林
美学质量评价
模型归纳
绿道
三山五园
landscape architecture
assessment on aesthetic quality
induction of model
greenway
Three Hills and Five Gardens
