Characteristics of soil organic carbon fractions in four vegetation communities of an inland salt marsh.

Background: The study of soil organic carbon characteristics and its relationship with soil environment and vegetation types is of great significance to the evaluation of soil carbon sink provided by inland salt marshes. This paper reports the characteristics of soil organic carbon fractions in 0-50 cm soil layers at four vegetation communities of the Qinwangchuan salt marsh.

Results: (1) The soil organic carbon content of Phragmites australis community (9.