Department of Hygiene and Ecomedicine, Faculty of Public Health, Medical University of Plovdiv, Plovdiv, Bulgaria.
Institute for Housing and Urban Research, Uppsala University, Uppsala, Sweden.
Environ Res. 2019 Nov;178:108708. doi: 10.1016/j.envres.2019.108708. Epub 2019 Aug 28.
Experiences afforded by natural settings promote health by helping people to build new adaptive capacities and to restore existing capacities. The aim of this study was to examine relations among restorative experience, mindfulness, rumination and psychological resilience in pathways linking residential greenspace to anxiety and depression symptoms.
We sampled 529 university students residing in Plovdiv, Bulgaria. Residential greenspace was measured in terms of the Normalized Difference Vegetation Index (NDVI) and tree cover density for different buffer sizes. Symptoms of anxiety and depression were measured with the Generalized Anxiety Disorder scale (7-item) and Patient Health Questionnaire (9-item), respectively. The following mediators were assessed by self-report: perceived greenspace, restorative quality of the neighborhood, dispositional mindfulness, rumination, and psychological resilience. Structural equation modelling techniques were used to test the theoretically-indicated relations among the variables.
Across different buffer sizes, higher greenspace was consistently associated with reduced scores on the anxiety and depression scales. This effect was partially mediated via several pathways. Specifically, higher NDVI was associated with higher perceived greenspace, and in turn, with higher restorative quality, and then with higher mindfulness, lower rumination, and greater resilience to stress, and consequently, with better mental health.
Our findings affirm the potential of greenspace for building psychological resilience and promoting health by offsetting dysfunctional rumination and facilitating mindfulness as components of intertwined capacity-building and capacity-restoring pathways.
自然环境所带来的体验可以帮助人们建立新的适应能力并恢复现有能力,从而促进健康。本研究旨在探讨恢复性体验、正念、反刍思维与心理弹性在居住绿地与焦虑和抑郁症状之间的关系途径。
我们在保加利亚普罗夫迪夫招募了 529 名大学生。采用归一化植被指数(NDVI)和不同缓冲区大小的树木覆盖率来衡量居住绿地。焦虑和抑郁症状分别采用广泛性焦虑障碍量表(7 项)和患者健康问卷(9 项)进行测量。通过自我报告评估以下中介因素:感知绿地、邻里恢复质量、倾向正念、反刍思维和心理弹性。采用结构方程模型技术检验变量之间的理论关系。
在不同的缓冲区大小中,较高的绿地面积与焦虑和抑郁量表的得分降低呈正相关。这种效应通过几种途径部分中介。具体来说,较高的 NDVI 与较高的感知绿地有关,而较高的感知绿地又与较高的恢复质量有关,进而与较高的正念、较低的反刍思维以及对压力的更大弹性有关,从而带来更好的心理健康。
我们的研究结果证实了绿地对建立心理弹性和促进健康的潜力,它可以通过抵消功能失调的反刍思维并促进正念,作为相互交织的能力建设和能力恢复途径的组成部分。