Future decline in the sensitivity of carbon use efficiency to soil formation rates in global karst ecosystems - Hui Chen; Renru Wang; Peirou Yang; Xinyue Li; Si Li; Lian Xiong; Chaochao Du; Xiaodong Yuan; Shiqi Tian; Junhan Li; Jingjing Liao; Sirui Zhang; et al. (CATENA, 2026)