Editorial: Evidences (states and experiences) of land management and food/nutrition (in)security in mixed farming systems: a global perspective - Kassawmar, Tibebu; Desta, Gizaw; Tadesse, Matebu; Teferi, Ermias; Kaba, Mirgissa; Suryabhagavan, Karuturi Venkata; Shiferaw, Abebe (Frontiers in Sustainable Food Systems, 2025)