Table 2

Area, total C, and C accumulation rate for all forests, and planted and natural forests for seven periods from 1949 to 1998 in China. The variables of natural forests were differences between those of all forests and planted forests. Carbon content is converted from biomass using a factor of 0.5. No information on planted forests is available before the mid-1970s. Data from Taiwan were not included in this study. Dashes indicate data that were not collected.

PeriodAll forestsPlanted forestsNatural forests
Total area (106 ha)Total C (Pg C)C density (mg ha–1)C accumulation rate (Pg C yr–1)Total area (106 ha)Total C (Pg C)C density (Mg ha–1)C accumulation rate (Pg C yr–1)Total area (106 ha)Total C (Pg C)C accumulation rate (Pg C yr–1)
1949102.345.0649.45
1950–6298.084.5846.67–0.040
1973–76101.264.4443.83–0.01017.390.2715.3283.874.17
1977–8195.624.3845.75–0.01312.740.3325.550.01282.884.05–0.024
1984–88102.194.4543.530.01118.740.5227.480.02783.453.93–0.017
1989–93108.634.6342.580.03521.370.6128.690.02087.264.020.018
1994–98105.824.7544.910.02623.110.7231.110.02182.714.030.005