Autor(es)

Razera, Raissa ; de Azevedo, Antonio Carlos ; da Silva, Luis Fernando Vieira ; Morgante, Patricia Gleydes ; Mendes, Lucas William

• Tipo de documento: Artigo Científico
• Fonte: APPLIED SOIL ECOLOGY; v. 214, p. 11-pg., 2025-10-01.

Resumo

As global agriculture strives to meet the demands of a growing population, innovative soil management strategies are essential for mitigating climate change by reducing greenhouse gas emissions and enhancing soil carbon storage. This study evaluates the effects of different mining waste management approaches (claying, remineralization, and their combination) on the structure and diversity of soil fungal communities in an Arenosol in Brazil. The experimental treatments included soil remineralizer application (R), claying (C), their combined application (CR), and a control (natural soil [S]). Mining operations for crushed stone production generate fine rock powder as a byproduct, which, if meeting nutrient and contaminant safety thresholds, can be repurposed for agricultural use. The results indicate that the combined claying and remineralization treatment (CR) led to the highest fungal diversity, with Ascomycota as the dominant phylum and an increased abundance of the Sordariomycetes class in basalt-based treatments. Mining waste application significantly influenced fungal community structure, with calcium (Ca), manganese (Mn), and organic carbon identified as key chemical drivers. While species richness remained stable across treatments, the CR treatment fostered stronger fungal interactions. Network analysis further highlighted this effect, revealing the highest number of nodes in CR and the greatest number of edges in the S treatment. These findings suggest that the combined use of mining waste through claying and remineralization can drive ecological shifts in fungal communities, promoting soil microbial health and supporting more sustainable agricultural practices. (AU)

• Processo FAPESP: 22/15186-1 - Modificação nas propriedades de solo arenoso pela aplicação de decape de mineração
• Beneficiário: Raissa Razera
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 23/12915-5 - Modificação nas propriedades de solo arenoso pela aplicação de decape de mineração
• Beneficiário: Raissa Razera
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Mestrado