Sulfur-mediated transformation, export and mineral complexation of organic and inorganic C, N, P and Si in dryland soils.

ABSTRACT: The transformation characteristics of mineral-associated soil components have profound impacts on their physical, biological, and chemical properties in drying-affected soils, whereas their mechanisms of sequestration and transformation remain elusive. To elucidate these phenomena, the solid-phase, water extracts (labile state, LS) and alkali-extracts (complexed state, CS) of four drying-affected soil types were examined. On average, the contents of soil organic carbon (SOC), soil total nitrogen (STN), and soil total hydrogen (STH) decreased in the order: forest > grassland > agriculture > desert. The extracted dissolved organic matter (DOM)_LS, DOM_CS and nutrients varied greatly among soil types, which indicated the occurrence of mineralization, sequestration, neoform

SUBMITTER: Gao X 

PROVIDER: S-EPMC11928616 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature