Greening the Urban Landscape: Assessing the Impact of Tree-Planting Initiatives and Climate Influences on Miami-Dade County’s Greenness

Author:

Dewald Julius R.1,Southworth Jane2,Szapocznik Jose1,Lombard Joanna L.3ORCID,Brown Scott C.1

Affiliation:

1. Department of Public Health Sciences, University of Miami Miller School of Medicine, 1120 NW 14th Street, Soffer Clinical Research Center Room 1065, Miami, FL 33136, USA

2. Department of Geography, University of Florida, Gainesville, FL 32611, USA

3. School of Architecture, University of Miami, Miami, FL 33136, USA

Abstract

In urban settings, trees and greenery play a vital role in environmental well-being and community vitality. This study explores the impact of Miami-Dade County’s tree-planting initiative on urban greenness and considers the influence of climate dynamics. Using Landsat data from 2006 to 2019, we find stable overall greenness, with 5.64% of the Census blocks exhibiting significant changes. Seasonal analysis reveals winter as prominent, with 61.47% of Census blocks showing increased greenness. Temperature and precipitation, especially post-2010, correlate with greenness changes. Despite a reported increase in tree cover from 14% to 20%, our findings show only 5–6% of Census blocks with statistically significant changes, highlighting the complexity of achieving substantial improvements in green canopy coverage. The study raises questions about the efficacy of large-scale tree-planting initiatives in densely urbanized areas when human factors are not well understood. Implications for urban planning stress the importance of preserving green spaces and informed decision-making for enhancing vegetation cover in Miami-Dade County, emphasizing the need to consider local conditions, seasonal variations, policies, and human factors in urban greening efforts.

Funder

U.S. National Heart, Lung and Blood Institute

U.S. National Institute on Aging

Robert Wood Johnson Foundation’s Evidence for Action initiative

Publisher

MDPI AG

Subject

General Earth and Planetary Sciences

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