Summary
Abstract Land use/vegetation cover change, reflecting a range of human land use practices, is the most prevalent and immediate influence on alterations in soil quality. The physical structure of soil is crucial for safeguarding soil carbon (C) and nitrogen (N), as it modulates the physical protection mechanisms and the distribution of these elements within the soil. Nevertheless, the impact of soil physical structure on soil C and N accumulation under different land use/vegetation cover in the same area remains unclear. This research collected soil samples from five land use types in the typical forest grassland transition zone of the Loess Plateau, including natural forests, artificial forests, shrubs, meadows, and farmland. We investigated the topsoil physical structure, soil C and N poo
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