AUTHOR=Chai Hua , Ma Jianying , Zhang Jinwei , Li Junqin , Meng Bo , Wang Chengliang , Pan Duofeng , Li Jie , Sun Wei , Zhou Xuhui TITLE=Nonlinear responses of ecosystem carbon fluxes to precipitation change in a semiarid grassland JOURNAL=Frontiers in Plant Science VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2025.1519879 DOI=10.3389/fpls.2025.1519879 ISSN=1664-462X