The effect of environmental factors in urban forests on blood pressure and heart rate in university students

An, Baiyi; Wang, Dan; Liu, Xiaojia; Guan, Hongyan; Wei, Hongxu; Ren, Zhibin

doi:10.1080/13416979.2018.1540144

Cited by 51 publications

(65 citation statements)

References 32 publications

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“…Ranked data were tested by Friedman's chi-square test to detect the probability of different row-means in data tables stratified by variations from cities, urban-forest park locations, and their interactions. When a significant effect was found, data were arranged and compared by the Wilcoxon rank-sum test [46,47]. Bonferroni adjustment was employed to test for significance at the 0.05 level [48].…”

Section: Methodsmentioning

confidence: 99%

“…For example, data from 14 comparisons of forests and urban settings across Japan revealed that the cool temperature in the forest was associated with the relaxation from a tense mood [4]. Lower fall temperatures were also associated with higher blood pressure in a birch forest of an urban park in Northeast China [46]. An increase in blood pressure results in higher stress relief through the up-regulating sympathetic nerve activity, salivary cortisol level, prefrontal-cortex cerebral blood flow, and parasympathetic nerve activity [18,23,49].…”

Section: The Difference Of Facial-expression Scores Among Citiesmentioning

confidence: 99%

“…In addition, a restorative forest effect was characterized by groups of trees by Jiang et al, who found that men can perceive discomfort in response to heavy tree density while women do not realize this stress [51]. Thus, tree density in urban forest parks of China might be greater than a male prefers [8,46,47]. However, the current understanding about the restorative response and gender difference to the forest experience is still limited.…”

Section: The Gender Effect On Facial Expressionmentioning

confidence: 99%

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Facial Expressions of Visitors in Forests along the Urbanization Gradient: What Can We Learn from Selfies on Social Networking Services?

Wei

Hauer

Chen

et al. 2019

Forests

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People’s satisfaction towards the experience in forests is one of most important feedbacks that forest park managers need to meet positive visitors’ experiences. Although the drawbacks of questionnaire methodology are obvious for data collection from self-reported scores at the landscape scale, few alternative methods have been proposed. In this study, nine urban forest parks along the urbanization gradients in three capital cities of Northeast China were targeted to investigate their visitors’ selfies from social networking services (SNS) by assessing facial expressions. A total of 935 photos with location records were obtained from the SNS platform of Sina Micro-Blog in a social hot-event of ‘Golden Week Holidays of National Day of China’ of 2017. Images were recognized by FireFace software to assess scores of neutral, happy, sad, angry, surprised, scared, disgusted, and contempt expressions. Data were ranked in descending order and analyzed by Friedman’s test, correlation analysis, and Poisson regression. Visitors in downtown-forests showed fewer negative expressions at the most northern city than at the southern most one. The negative expressions tended to be alleviated with the increasing distance of forest parks from downtown. However, when the distance reached over 10 km no geographical effect was found. Female visitors showed positive emotional expressions to urban forests while male visitors showed no response. In conclusion, using data from SNS, this study found an experience in forest park less than 10 km from the downtown of a northern city resulted in female visitors showing the most positive expressions.

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Section: Methodsmentioning

confidence: 99%

Section: The Difference Of Facial-expression Scores Among Citiesmentioning

confidence: 99%

Section: The Gender Effect On Facial Expressionmentioning

confidence: 99%

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Facial Expressions of Visitors in Forests along the Urbanization Gradient: What Can We Learn from Selfies on Social Networking Services?

Wei

Hauer

Chen

et al. 2019

Forests

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“…Turning one’s attention to forest bathing as a natural and low-cost activity is believed to alleviate stress-related diseases through plant-derived physiological relaxation [3]. This approach aims at “preventative medical effects” that induce physiological relaxation and improve immune functions to prevent diseases [4,5,6,7,8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Psychological Effects of Viewing Urban Parks in Different Seasons in Adults

Pratiwi

Xiang

Furuya

2019

IJERPH

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Although the health benefits of urban parks have gained significant attention, the effects of viewing park landscape on older adult residents have not commanded much research. This study aimed to investigate the physiological and psychological effects of viewing cherry blossoms in spring and fresh greenery in early summer at urban parks. The experiments were conducted in two viewing spots in the same park in Japan during different seasons, and included 12 participants in both spring (mean age, 66.4 ± 10.5 years) and summer (mean age, 65.75 ± 10.1 years). Participants sat and viewed an urban park and city landscape for 11–15 min. Blood pressure was measured before and after the seated viewing while heart rate was measured continuously. Then, they evaluated the psychological responses using the Profile of Mood States and State-Trait Anxiety Inventory. Viewing cherry blossoms and fresh greenery in urban parks led to lower blood pressure in spring and early summer than viewing city areas in spring and early summer. Moreover, the score of vigor–activity was significantly higher; tension–anxiety was significantly lower in spring; and the state-anxiety level was significantly lower in early summer. The results of this study suggest that viewing urban parks results in physiological and psychological relaxation.

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“…Urbanization is one of the most critical forces driving land use change on Earth. Urban forest is a basic greening infrastructure that is needed to improve regional environmental quality and provide a restorative setting for humans [1,2]. Slow-growing ornamental trees are less used than faster-growing varieties due to the high cost of long-term production and their slow establishment.…”

Section: Introductionmentioning

confidence: 99%

Using morphological attributes for the fast assessment of nutritional responses of Buddhist pine (Podocarpus macrophyllus [Thunb.] D. Don) seedlings to exponential fertilization

Xie²,

DuHai

et al. 2019

PLoS ONE

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Culturing slowly growing tree seedlings is a potential approach for managing the conflict between the increasing demand for ornamental stock and the decreasing area of farmlands due to urbanization. In this study, Buddhist pine (Podocarpus macrophyllus [Thunb.] D. Don) seedlings were raised in multishelves with light-emitting diode lighting in the spectrum of 17:75:8 (red:green:blue) at 190–320 μmol m-2 s-1 with controlled temperature and relative humidity at 19.5°C and 60%, respectively. Seedlings were fed by exponential fertilization (EF) (nitrogen [N]-phosphorus [P]2O5-K2O, 10-7-9) at eight rates of 0 (control), 20 (E20), 40 (E40), 60 (E60), 80 (E80), 100 (E100), 120 (E120), and 140 (E140) mg N seedling-1 for four months through 16 fertilizer applications. The nutritional responses of Buddhist pine seedlings can be identified and classified into various stages in response to increasing doses, up to and over 120 N seedling-1. Morphological traits, i.e., the green color index and leaf area (LA) obtained by digital analysis and the fine root growth, all remained constant in response to doses that induced steady nutrient loading. LA had a positive relationship with most of the nutritional parameters. A dose range between 60 and 120 mg N seedling-1 was recommended for the culture of Buddhist pine seedlings. At this range of fertilizer doses, measuring the leaf area through digital scanning can easily and rapidly indicate the inherent nutrient status of the seedlings.

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The effect of environmental factors in urban forests on blood pressure and heart rate in university students

Cited by 51 publications

References 32 publications

Facial Expressions of Visitors in Forests along the Urbanization Gradient: What Can We Learn from Selfies on Social Networking Services?

Facial Expressions of Visitors in Forests along the Urbanization Gradient: What Can We Learn from Selfies on Social Networking Services?

Physiological and Psychological Effects of Viewing Urban Parks in Different Seasons in Adults

Using morphological attributes for the fast assessment of nutritional responses of Buddhist pine (Podocarpus macrophyllus [Thunb.] D. Don) seedlings to exponential fertilization

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