近年来,绿色屋顶得到了广泛的研究,表明它们在城市地区的实施提供了多种好处(例如,雨洪减灾,城市热岛减少,节能,生物多样性的增加,二氧化碳封存)并支持可持续城市发展。虽然绿色屋顶的好处已经得到广泛认可,社区对这些基于自然的解决方案的看法以及在城市地区为其安装付费的意愿仍然不清楚,也不量化。社会认知和支付绿色屋顶的意愿是城市规划者和决策者的基础,因为它们代表着社区参与城市地区的可持续发展。在这项工作中,我们旨在分析市民如何看待绿色屋顶,以及他们愿意为这些基于自然的解决方案的安装和维护付费。我们使用在线调查来调查绿色屋顶的感知和知识,作为常见环境问题的潜在解决方案(即,城市洪水,温度升高,能源消耗,空气污染和缺乏绿色空间),以及在公共和私人屋顶上安装绿色屋顶的兴趣和意愿。根据居住在撒丁岛(意大利)的389名受访者的回答,我们的分析表明,大多数公民都知道绿色屋顶是什么,他们知道,尽管这些基于自然的解决方案不能完全解决环境问题,它们可以大大有助于缓解这些现象。结果还显示,在公共建筑上安装绿色屋顶的兴趣高于私人屋顶,由于安装成本高。此外,对于私人屋顶,安装光伏板而不是GR的可能性通常是优选的。大多数受访者愿意每年花费不到100欧元来维护公共建筑的绿色屋顶,并投资不到5000欧元来安装自己的房子。
Green roofs have been extensively investigated in recent years, showing that their implementation in urban areas provides multiple benefits (e.g., pluvial flood mitigation, urban heat island reduction, energy saving, increase of biodiversity, CO2 sequestration) and supports sustainable urban development. Although green roof benefits have been widely recognized, the perception that the community has of these nature-based solutions and the willingness to pay for their installation in urban areas is still not clear nor quantified. Societal perception and willingness to pay for green roofs are fundamental for urban planners and decision makers, since they represent the community participation in the sustainable development of urban areas. In this work, we aim to analyze how citizens perceive green roofs and how willing they are to pay for the installation and maintenance of these nature-based solutions. We used an online survey to investigate the perception and the knowledge of green roofs as a potential solution to common environmental issues (i.e., urban flood, increase of temperature, energy consumption, air pollution and lack of green spaces), and the interest and willingness to pay for green roof installation on both public and private roofs. Based on the answers of 389 respondents living in Sardinia (Italy), our analysis revealed that most citizens are aware of what green roofs are, and they are aware that, although these nature-based solutions can not completely solve environmental issues, they can greatly contribute to the mitigation of these phenomena. Results also show a higher interest in the installation of green roofs on public buildings than on private ones, due to the high installation costs. Moreover, for private roofs, the possibility to install photovoltaic panels instead of GRs is generally preferred. Most of the respondents are willing to spend less than 100 € per year for the maintenance of green roofs on public buildings and to invest less than 5000 € for the installation on their own house.