这一重大工程，每年可新增约3000万吨碳汇

Core Points - The Qinghai-Tibet Plateau's major ecological protection and restoration projects can annually add approximately 30 million tons of carbon sinks [1] - The plateau currently has an annual carbon surplus exceeding 65 million tons, with its ecological system contributing about 120 to 140 million tons of carbon sinks each year, accounting for 10% to 16% of the national total [1] - The newly developed atmospheric carbon inversion system, "Gongga Model," is the first of its kind in China and has been certified by the "Global Carbon Project" [1] - The carbon sink function of the Qinghai-Tibet Plateau is significantly influenced by changes in water and heat conditions, with enhanced carbon sink functionality observed under warmer and wetter climate conditions [1] - The highest net carbon sink values in the plateau's alpine ecosystem occur at altitudes around 4,000 meters, where taller plant communities can sequester more carbon from the atmosphere [1] - Microorganisms play a crucial role in regulating soil carbon decomposition and stabilization in the Qinghai-Tibet Plateau [1] - Future improvements in the carbon sink function of the plateau can be achieved through enhanced ecological protection and the implementation of ecological civilization strategies [2]