Insights into Circular Horticulture: Knowledge Diffusion, Resource Circulation, One Health Approach, and Greenhouse Technologies

Urban Farm DB summary

This study used bibliometric and text-mining analysis of the literature to assess how horticulture is transitioning to the circular economy. It found that circular horticulture is a recent, growing research field whose approach has been fragmented rather than systemic or integrative. Bioeconomy, urban agriculture, recycled nutrients, biochar, fertigation, and desalination emerged as research hotspots, with vegetables and fruits the most-studied crops; resource circulation has focused mainly on biowaste recovery for biofertilizers and substrate substitutes, and on water reuse for hydroponic systems. The One Health approach was found to be scarcely explored and weakly articulated, with the absence of assessment methodologies covering ecosystem, animal, and human health noted as a notable limitation, and science-policy interfaces linking One Health and food systems identified as needing improvement.