Terrestrial ecosystems play an important role in the global carbon cycle,offsetting nearly one-third of annual anthropogenic carbon emissions[1].Thisterrestrial carbon sink doubled in the past five decades and is proj...Terrestrial ecosystems play an important role in the global carbon cycle,offsetting nearly one-third of annual anthropogenic carbon emissions[1].Thisterrestrial carbon sink doubled in the past five decades and is projected to persist,primarily due to the fertilization of increasing CO_(2) on photosynthesis,particularly in tropical forest ecosystems and warming-induced productivity enhancement in arctic and boreal ecosystems[2].Climate extremes,which amplify interannual variations in land carbon sinks[3],have emerged as the major driver increasing the risk of destabilization in global land carbon sinks[4].展开更多
基金supported by the National Natural Science Foundation of China(42425106 and 42501110)the National Key Research and Development Program of China(2024YFF0809104)the Postdoctoral Innovation Talents Support Program ofChina(Bx20240018).
文摘Terrestrial ecosystems play an important role in the global carbon cycle,offsetting nearly one-third of annual anthropogenic carbon emissions[1].Thisterrestrial carbon sink doubled in the past five decades and is projected to persist,primarily due to the fertilization of increasing CO_(2) on photosynthesis,particularly in tropical forest ecosystems and warming-induced productivity enhancement in arctic and boreal ecosystems[2].Climate extremes,which amplify interannual variations in land carbon sinks[3],have emerged as the major driver increasing the risk of destabilization in global land carbon sinks[4].