Why do Latossolos occur in Brazil’s Northeast semiarid region? Drawing on the paper by Grace Bungenstab Alves, this text shows how reading soil and relief together reveals both legacies from wetter phases and more recent landscape reorganization. Two examples illustrate the argument: Vertisols with Holocene OSL ages and the Latossolo–Planossolo transition. Together, they highlight that separate inventories of soils and landforms do not explain processes, and that transition zones often hold the key evidence for interpretation.
Trapped in the forest: how soil shapes an unusual grassland in the Atlantic Rainforest
This study investigates the Campo do Veludo, an isolated grassland formation within the Atlantic Forest in southern São Paulo. By integrating soil, topographic, and vegetation data, the research shows that shallow, acidic, and poorly drained Spodosols shape the landscape structure and constrain forest expansion, resulting in a biogeographic enclave of exception. The authors also explore possible connections with muçununga formations, broadening the discussion on landscape diversity in humid tropical regions.
Toposequences: What Are We Really Studying?
This post presents a critical review of the concept of toposequence in soil science. Based on a bibliometric analysis, the article identifies three main approaches: geomorphic surfaces, catena, and toposequence. It also proposes more precise criteria for the use of toposequence in pedogeomorphological studies.
Rain as a driver of soil transformation in Brazil’s Semiarid Region
Study reveals how variations in precipitation affect the color, structure, and mineralogy of Luvisols in Brazil’s semi-arid region, with implications for soil fertility and agricultural potential





