The difference in soil organic carbon (SOC) content.

Abstract

<p>SF-1 and SF-2 are sites of secondary forest while RG-1 and RG-2 are sites of restored grassland. Different lower-case letters denote significant differences among depths within an individual study site; different upper-case letters denote significant differences among vegetation restoration types (<i>P</i><0.05) (plot to plot and depth to depth, N = 6).</p