Table 1 Database summary and comparison to previous estimates

From: Global seagrass carbon stock variability and emissions from seagrass loss

  

Study

Mean ± SE

Median (interquartile range)

n

Soil properties

Dry bulk density (g cm-3)

This study

1.1 ± 0.0

1.1 (0.8–1.4)

18,436

 

Fourqurean et al.5

1.0 ± 0.0

0.9

2484

% Corg

This study

1.3 ± 0.0

0.7 (0.3−1.6)

18,658

 

Fourqurean et al.5

2.0 ± 0.1

1.4

3561

Soil Corg stock (Mg Corg ha−1)

30 cm; Including predicted

This study

37.7 ± 1.1

24.2 (12.4–44.9)

2171

30 cm; Measured only

This study

41.1 ± 1.8

27.54 (15.8–47.2)

1022

 

Kennedy et al.16

33.5 ± 1.2

23.1

576

 

Fourqurean et al.5

36.8 ± 1.7

33.2 (23.1–45.6)

183

1 m; Including predicted

This study

120.8 ± 3.5

77.6 (41.9−139.7)

1625

 

Fourqurean et al.5

165.6

139.7

219

 

IPCC26

 

 108 (84−139)

89

1 m; Measured only

This study

 194.3 ± 13.4

 145 (62.2−263.7)

227

 

Fourqurean et al.5

  329.5 ± 55.9

 173.3

41

  1. Soil properties were summarized for all available data in the database, where most soil cores contain multiple data points representing individual core increments. Soil Corg stocks were calculated per soil core. IPCC26 reported the geometric mean with a 95% confidence interval, based on both measured and interpolated 1 m Corg stocks.