Guo Xuan, Tu Xingyue, Huang Ganlin, Fang Xuening, Kong Lingqiang, Wu Jianguo
School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China.
State Key Laboratory of Earth Surface Processes and Resource Ecology (ESPRE), Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China.
Build Environ. 2022 Sep;223:109449. doi: 10.1016/j.buildenv.2022.109449. Epub 2022 Jul 31.
The COVID-19 pandemic has had negative effects on people's mental health worldwide, especially for those who live in large cities. Studies have reported that urban greenspace may help lessen these adverse effects, but more research that explicitly considers urban landscape pattern is needed to understand the underlying processes. Thus, this study was designed to examine whether the resident sentiments in Beijing, China changed before and during the pandemic, and to investigate what urban landscape attributes - particularly greenspace - might contribute to the sentiment changes. We conducted sentiment analysis based on 25,357 geo-tagged microblogs posted by residents in 51 neighborhoods. We then compared the resident sentiments in 2019 (before the COVID-19) with those in 2020 (during the COVID-19) using independent sample t-tests, and examined the relationship between resident sentiments and urban greenspace during the COVID-19 pandemic phases using stepwise regression. We found that residents' sentiments deteriorated significantly from 2019 to 2020 in general, and that urban sentiments during the pandemic peak times showed an urban-suburban trend that was determined either by building density or available greenspace. Although our analysis included several other environmental and socioeconomic factors, none of them showed up as a significant factor. Our study suggests the effects of urban greenspace and building density on residents' sentiments increased during the COVID-19 pandemic and that not all green spaces are equal. Increasing greenspace, especially within and near neighborhoods, seems critically important to helping urban residents to cope with public health emergencies such as global pandemics.
新冠疫情对全球人们的心理健康产生了负面影响，尤其是对那些生活在大城市的人。研究报告称，城市绿地可能有助于减轻这些不利影响，但需要更多明确考虑城市景观格局的研究来了解其潜在机制。因此，本研究旨在调查中国北京居民在疫情之前和期间的情绪是否发生了变化，并探究哪些城市景观属性——尤其是绿地——可能导致了情绪变化。我们基于51个社区居民发布的25357条带有地理标签的微博进行了情绪分析。然后，我们使用独立样本t检验比较了2019年（新冠疫情之前）和2020年（新冠疫情期间）的居民情绪，并使用逐步回归分析了新冠疫情期间居民情绪与城市绿地之间的关系。我们发现，总体而言，居民情绪从2019年到2020年显著恶化，并且在疫情高峰期，城市情绪呈现出城乡差异趋势，这一趋势由建筑密度或可用绿地决定。尽管我们的分析纳入了其他几个环境和社会经济因素，但它们均未显示出显著影响。我们的研究表明，在新冠疫情期间，城市绿地和建筑密度对居民情绪的影响有所增加，而且并非所有绿地都具有同等作用。增加绿地，尤其是在社区内部和附近，对于帮助城市居民应对全球大流行等突发公共卫生事件似乎至关重要。
