Evidence map›Paper›PMID 32570770›Full record

ArticleInternational journal of environmental research and public health2020

Urban Trees and Human Health: A Scoping Review.

Kathleen L Wolf, Sharon T Lam, Jennifer K McKeen, Gregory R A Richardson, Matilda van den Bosch, Adrina C Bardekjian

Abstract readScoping Review
In one paragraph

Article in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 7 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

76 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Community Forests and Public Health: A Research Agenda.International journal of environmental research and public health · 2025
    Pooled it
  2. Pooled it
  3. Built and natural environment correlates of physical activity of adults living in rural areas: a systematic review.The international journal of behavioral nutrition and physical activity · 2024
    Pooled it
  4. Natural Environments in University Campuses and Students' Well-Being.International journal of environmental research and public health · 2024
    Pooled it
  5. Effects of Forest-Based Interventions on Mental Health: A Meta-Analysis of Randomized Controlled Trials.International journal of environmental research and public health · 2022
    Pooled it
  6. Pooled it
  7. Effect of Forest Therapy on Depression and Anxiety: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2021
    Pooled it
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  20. GPS-based street-view greenspace exposure and wearable assessed physical activity in a prospective cohort of US women.The international journal of behavioral nutrition and physical activity · 2025
    Article

16 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Kathleen L WolfSchool of Environmental and Forest Sciences, College of the Environment, University of Washington, Seattle, WA 98195, USA.
Sharon T LamOntario Climate Consortium Secretariat, Toronto and Region Conservation Authority, Toronto, ON L4K 5R6, Canada.
Jennifer K McKeenCanadian Forest Service, Natural Resources Canada (Government of Canada), Vancouver, BC V6B 5J3, Canada.ORCID 0000-0003-2590-5829
Gregory R A RichardsonClimate Change and Innovation Bureau, Health Canada (Government of Canada), Ottawa, ON K1Y 4X2, Canada.
Matilda van den BoschSchool of Population and Public Health, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada.ORCID 0000-0003-1410-0099
Adrina C BardekjianEngagement and Research, Tree Canada, Ottawa, ON K1R 6S3, Canada.

Funding

CIHR 156152
6 · The paper itself

Abstract

The urban forest is a green infrastructure system that delivers multiple environmental, economic, social and health services, and functions in cities. Environmental benefits of urban trees are well understood, but no review to date has examined how urban trees affect human health. This review provides a comprehensive summary of existing literature on the health impacts of urban trees that can inform future research, policy, and nature-based public health interventions. A systematic search used keywords representing human health, environmental health, and urban forestry. Following screening and appraisal of several thousand articles, 201 studies were conceptually sorted into a three-part framework. Reducing Harm, representing 41% of studies, includes topics such as air pollution, ultraviolet radiation, heat exposure, and pollen. Restoring Capacities, at 31%, includes attention restoration, mental health, stress reduction, and clinical outcomes. Building Capacities, at 28%, includes topics such as birth outcomes, active living, and weight status. The studies that were reviewed show substantial heterogeneity in purpose and method yet indicate important health outcomes associated with people's exposure to trees. This review will help inform future research and practice, and demonstrates why urban forest planning and management should strategically promote trees as a social determinant of public health.

Indexed as

ForestsTreesUltraviolet RaysUrban HealthCitiesForestryHumansecosystem servicesgreen infrastructuregreenspacehealth promotionpublic healthsocial determinanturban foresturban greening

Identifiers

PMID32570770
PMCPMC7345658

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.