Over the past three decades, tropical forest clearing and burning have greatly altered the Amazonian landscape by increasing the cover of pastures and secondary forests. The alteration of biogeochemical processes on these lands is of particular interest on highly weathered Oxisols that cover large areas in the region because of concerns regarding possible nutrient limitation in agricultural land uses and during forest regrowth. The objectives of this study were to quantify (1) the reaccumulation of nutrients in biomass of secondary land uses, (2) changes in soil nutrient contents, (3) internal nutrient cycles, and (4) input–output budgets for the landscape mosaic.
Fogo no Brasil em 2024: o retrato fundiário da área queimada nos biomas
Fogo no Brasil em 2024: o retrato fundiário da área queimada nos biomas
O ano de 2024 tem sido marcado por uma intensificação das queimadas e dos incêndios nos biomas brasileiros, com destaque para a Amazônia, o Cerrado e o Pantanal. O uso do fogo, seja de forma acidental ou intencional, continua sendo um dos principais fatores de...