Spatial Variability and Relationship of Mangrove Soil Organic Matter to Organic Carbon

Table 1

Descriptive statistics of total carbon, soil organic carbon, soil inorganic carbon contents, and soil characteristics in surface and subsurface soils.

Parameters	⁢Surface soil (0–5 cm); ⁢				⁢Subsurface soil (5–10 cm); ⁢
	Max	Min	Mean	SD	Max	Min	Mean	SD
Total carbon (%)	6.20	0.02	3.09	1.25	5.08	0.02	2.53	1.49
Soil organic carbon (%)	6.20	0.02	3.08	1.25	5.01	0.02	2.51	1.47
Soil inorganic carbon (%)	0.06	0.00	0.01	0.02	0.23	0.00	0.03	0.05
pH	8.01	6.95	7.38	—	8.12	7.35	7.81	—
Salinity (ppt)	3.04	1.00	2.04	0.47	3.52	1.20	2.22	0.52
EC (mS/cm)	5.28	1.88	3.66	0.78	6.06	2.24	3.96	0.86
TDS (g/L)	2.64	0.94	1.83	0.39	3.03	1.12	1.98	0.43

ppt = parts per thousand; mS/cm = microsiemens/centimeter; EC = electrical conductivity; TDS = total dissolved solids; g/L = grams/liter.