Coldwell Deborah F, Evans Karl L
Animal and Plant Sciences, Alfred Denny Building, University of Sheffield, Western Bank, Sheffield, United Kingdom.
PLoS One. 2017 Mar 23;12(3):e0174376. doi: 10.1371/journal.pone.0174376. eCollection 2017.
Conservation policy frequently assumes that increasing people's exposure to green-space enhances their knowledge of the natural world and desire to protect it. Urban development is, however, considered to be driving declining connectedness to nature. Despite this the evidence base supporting the assumption that visiting green-spaces promotes biodiversity knowledge and conservation support, and the impacts of urbanization on these relationships, is surprisingly limited. Using data from door-to-door surveys of nearly 300 residents in three pairs of small and large urban areas in England we demonstrate that people who visit green-space more regularly have higher biodiversity knowledge and support for conservation (measured using scales of pro-environmental behavior). Crucially these relationships only arise when considering visits to the countryside and not the frequency of visits to urban green-space. These patterns are robust to a suite of confounding variables including nature orientated motivations for visiting green-space, socio-economic and demographic factors, garden-use and engagement with natural history programs. Despite this the correlations that we uncover cannot unambiguously demonstrate that visiting the countryside improves biodiversity knowledge and conservation support. We consider it likely, however, that two mechanisms operate through a positive feedback loop i.e. increased visits to green-space promote an interest in and knowledge of biodiversity and support for conservation, which in turn further increase the desire to visit green-space and experience nature. The intensity of urbanization around peoples' homes, but not city size, is negatively associated with their frequency of countryside visits and biodiversity knowledge. Designing less intensely urbanized cities with good access to the countryside, combined with conservation policies that promote access to the countryside thus seems likely to maximize urban residents' biodiversity knowledge and support for conservation.
保护政策常常假定,增加人们接触绿色空间的机会能增进他们对自然世界的了解以及保护自然的意愿。然而,城市发展却被认为导致了与自然联系的减少。尽管如此,支持参观绿色空间能促进生物多样性知识和保护支持这一假设的证据基础,以及城市化对这些关系的影响,却惊人地有限。利用对英格兰三对大、小城区近300名居民进行的挨家挨户调查数据,我们证明,更频繁参观绿色空间的人具有更高的生物多样性知识和对保护的支持(使用亲环境行为量表进行衡量)。至关重要的是,这些关系只有在考虑到去乡村的参观次数而非城市绿色空间的参观频率时才会出现。这些模式对于一系列混杂变量具有稳健性,包括参观绿色空间的自然导向动机、社会经济和人口因素、花园使用情况以及参与自然历史项目的情况。尽管如此,我们发现的相关性并不能明确证明去乡村参观能提高生物多样性知识和保护支持。然而,我们认为可能有两种机制通过正反馈回路起作用,即增加对绿色空间的参观能促进对生物多样性的兴趣和知识以及对保护的支持,这反过来又会进一步增加去绿色空间参观和体验自然的愿望。人们住所周围的城市化强度而非城市规模,与他们去乡村参观的频率和生物多样性知识呈负相关。因此,设计城市化程度较低且方便前往乡村的城市,再结合促进人们前往乡村的保护政策,似乎有可能最大限度地提高城市居民的生物多样性知识和对保护的支持。