Department of Environmental Design, College of Landscape Architecture, Sichuan Agricultural University, Chengdu, China.
Jiuzhaigou National Nature Reserve Administration, Aba Tibetan and Qiang Autonomous Prefecture, Aba, China.
PLoS One. 2023 Jun 29;18(6):e0287251. doi: 10.1371/journal.pone.0287251. eCollection 2023.
The retaining wall is a passive engineering measure to prevent and control unsafe factors caused by rock collapse in the valleys. Existing studies have mainly focused on its functional robustness and safety features, with few exploring its visual quality in the landscape. A multiple regression analysis was applied to evaluate the Scenic Beauty Estimation (SBE) of the giant retaining wall in Jiuzhaigou's (a world natural heritage site) Heye Village, then the factors affecting SBE were analyzed. It is found that enhancing the sense of perspective and spatial hierarchy of retaining-wall murals in narrow roads contributes to the extension of observers' sight, which is the key to improving SBE. Furthermore, the showcase of folk culture in murals can realize the beautification function of the giant retaining walls. In addition, the SBE of giant retaining walls is also linked to coordination, where the walls embellished with the natural landscape and folk culture murals have better SBE performance than those with local stones. This study provides a reference for constructing scenic beauty after fulfilling the safety function of retaining wall engineering.
挡土墙是一种被动的工程措施,用于防止和控制山谷中岩石崩塌所产生的不安全因素。现有研究主要集中在其功能的稳健性和安全性上,很少探讨其在景观中的视觉质量。本研究采用多元回归分析方法评估了九寨沟荷叶村巨型挡土墙的风景美感评价(SBE),然后分析了影响 SBE 的因素。结果表明,在狭窄道路上增强挡土墙壁画的透视感和空间层次感有助于扩展观察者的视野,这是提高 SBE 的关键。此外,壁画中展示的民间文化可以实现巨型挡土墙的美化功能。此外,巨型挡土墙的 SBE 还与协调性有关,用自然景观和民间文化壁画装饰的挡土墙比用当地石头装饰的挡土墙具有更好的 SBE 性能。本研究为在满足挡土墙工程安全功能的基础上构建景观美感提供了参考。