Since 2021, Bio4Climate has supported eight miniforests across Massachusetts, where restoring degraded soil is a central goal alongside planting diverse native species.
We’re excited to see new research—The Root of Urban Renewal: Linking Miyawaki Afforestation to Soil Recovery—examining early soil health changes in three of Groundwork Elizabeth’s miniforests in New Jersey. Led by Andres Ospina Parra (Rutgers–Newark) with Daniela Shebitz (Kean University) and John Evangelista (Groundwork Elizabeth), the study offers some of the first U.S.-based evidence that Miyawaki microforests can rapidly initiate below-ground recovery, showing gains in soil permeability, carbon, and microbial activity within just one to three years—even in highly degraded urban soils.
As the authors note, these changes reflect early signs of soil self-organization, where interactions among roots, microbes, and organic matter begin building long-term resilience.
Studies like this help illuminate what becomes possible when we create the right conditions for urban sites to recover—and we’re excited to keep learning as our own miniforests grow and mature.
Posted: February 7, 2026