This paper estimated the carbon sink and potential of forest management activities in China using the gross-net and net-net estimation method. The results showed that if the base year is set to 1990, the carbon sink of forest management in 2010, 2020, 2030, 2040 and 2050 is 58. 7 , 57.8, 58.4, 62.7 and 67. 2 MtC·a-1, respectively, under the gross-net, andisl4.9, 17. 5 , 20. 1 , 26. 0 and 31. 7 MtC·a-1, respectively, under the net-net. If the base year is 2000, the carbon sink of forest management in 2010, 2020, 2030, 2040 and 2050 is 73. 5 , 72. 1 , 72. 8, 78. 1 and 83. 6 MtC·a-1, respectively, under the gross-net, and is 2.0, 5.7, 9.3, 16.8 and 24. 2 MtC·a-1, respectively, under the net-net. The carbon sink change trend of forest management is the same under the gross-net and net-net with the same base year, and the carbon sink amount is bigger under the gross-net than that under the net-net.%利用总-净核算和净-净核算2种方式估算中国森林管理活动的碳汇量及其潜力.结果表明:基年为1990年时,总-净核算方式下2010,2020,2030,2040和2050年中国森林管理碳汇量分别为58.7,57.8,58.4,62.7和67.2 MtC·a-1,净-净核算方式下分别为14.9,17.5,20.1,26.0和31.7 MtC·a-1;基年为2000年时,总-净核算方式下2010,2020,2030,2040和2050年中国森林管理碳汇量分别为73.5,72.1,72.8,78.1和83.6 MtC·a-1,净-净核算方式下分别为2.0,5.7,9.3,16.8和24.2 MtC·a-1；同一基年2种核算方式估算的森林管理碳汇量变化趋势相同,且总-净核算的碳汇量大于净-净核算的碳汇量.
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