Comparisons of soil organic carbon enrichment and loss in sediments among red soil, black soil, and loess in China

Abstract

Highlights Soil organic carbon (SOC) loss determined by sediment loss for loess, red soil, and black soil. SOC is more easily enriched in sediments of red soil and loess soil than in that of black soil. Logarithmic relationship exists between ERocs and soil loss for high aggregate and clay content soil. Exponential relationship exists between ERocs and soil loss for low clay and aggregate soils. SOC and clay content determine the SOC enrichment in sediments.

Keywords

• SOC loss
• Water erosion
• Soil loss
• Red soil
• Black soil
• Loess