Grassland duration affects soil organic carbon pools only in the topsoil and has limited effects on microbial metabolism - Claudia Dămătîrcă; Barbara Moretti; Laura Zavattaro; Julia Schroeder; Christopher Poeplau; Alexandra Ciorîţă; Marco Pittarello; Luisella Celi; Giampiero Lombardi (Agriculture, Ecosystems & Environment, 2025)