Landscape-Scale Variability of Organic Carbon Burial by SW Greenland Lakes

Table 3 Total Number of Lakes in the Study Area (Figure 1) for Given Lake Area Ranges, Cumulative Lake Areas and Estimated Regional Annual Organic C Burial Rate

Lake area (ha)	Number of lakes	Total lake area (ha)	Total regional annual C burial (g C yr⁻¹ × 10⁹) for each lake area interval	Cumulative annual C burial (g C yr⁻¹ × 10⁹) lakes up to 1000 ha
<10	16,379	36,437	1.31	1.31
10–50	2565	54,158	1.95	3.26
50–100	375	25,980	0.94	4.2
100–1000	470	118,931	4.28	8.48
>1000	24	83,001	1.66 (2.98)	10.14
Total	19,813	318,506		10.14 (11.46^#)

A mean C accumulation rate of 3.6 g C m⁻² y⁻¹ was used for the time period post-1950 and 2 g C m⁻² y⁻¹ for lakes > 1000 ha.
^#The annual burial rate based on the application of a mean C accumulation rate of 3.6 g C m⁻² y⁻¹ to lakes > 1000 ha is given in parentheses and is discussed in the text.