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World J Psychiatry. Apr 19, 2026; 16(4): 115550
Published online Apr 19, 2026. doi: 10.5498/wjp.v16.i4.115550
Natural environments and adolescent depression: A literature review
Yi-Fan Zheng, Yi-Min Zheng, Xin-Qiao Liu
Yi-Fan Zheng, College of Management and Economics, Tianjin University, Tianjin 300072, China
Yi-Min Zheng, Xin-Qiao Liu, School of Education, Tianjin University, Tianjin 300350, China
Author contributions: Liu XQ designed the study; Zheng YM, Zheng YF, and Liu XQ wrote the manuscript. All the authors approved the final manuscript.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
Corresponding author: Xin-Qiao Liu, PhD, Professor, School of Education, Tianjin University, No. 135 Yaguan Road, Jinnan District, Tianjin 300350, China. xinqiaoliu@pku.edu.cn
Received: October 20, 2025
Revised: December 11, 2025
Accepted: January 9, 2026
Published online: April 19, 2026
Processing time: 161 Days and 18.6 Hours
Abstract

With the acceleration of global urbanization, humanity’s disconnection from natural ecosystems has deepened, leading to a concurrent rise in adolescent “nature deficit disorder” and depression risk. In this context, explorations of the impact of natural environments on adolescent depression and the potential of such environments as sites of intervention have provided critical breakthroughs for alleviating the global adolescent mental health crisis. This study employs a literature review methodology to comprehensively synthesize empirical research and theoretical findings on the relationship between the natural environment and adolescent depression. It identifies the core, mediating, and moderating factors that influence this relationship while elucidating its theoretical foundations. On this basis, the study proposes improvement strategies and future research directions. By integrating existing findings, this study not only clarifies the core patterns linking the natural environment and adolescent depression but also provides a clear framework for the subsequent exploration of mechanisms and intervention practices. It aims to promote the standardized application of natural environments within adolescent mental health protection systems, thereby contributing to the sustainable improvement of global adolescent mental health levels.

Keywords: Natural environments; Nature-based interventions; Adolescents; Depression; Mechanisms

Core Tip: Nature-based interventions, in the context of global urbanization, are a new approach for preventing and alleviating adolescent depression. However, there are, notably, both opportunities and challenges in obtaining a systematic understanding of their mechanisms and applying them effectively. To mobilize the full potential of the natural environment and truly empower adolescent mental health, it is necessary to obtain a clear understanding of the core influencing factors and to comprehensively explore the standardized integration of nature into mental health protection systems.