Global Environmental Change: Human and Policy DimensionsUnity in diversity: The evolution of the grassland social-ecological systems in China and MongoliaHaibin DongXiangjuan HouYongzhi ZhaoQing XuTariq AliSiqi YangQing ZhangXiangyang Hou2026-01-15Full textDOI https://doi.org/10.1016/j.gloenvcha.2026.103113