Lateral carbon transfer from erosion in noncroplands matters

Glob Chang Biol. 2018 Aug;24(8):3283-3284. doi: 10.1111/gcb.14125.

Abstract

This study combines two unprecedentedly high resolution (250 × 250 m) maps of soil erosion (inter-rill and rill processes) and soil organic carbon to calculate a global estimate of erosion-induced organic carbon (C) displacement. The results indicate a gross C displacement by soil erosion of 2.5-0.3+0.5 Pg C/year. The greatest share of displaced C (64%) comes from seminatural lands and forests. This suggests that lateral C transfer from erosion in noncroplands may play a more important role than previously assumed.

Publication types

  • Letter

MeSH terms

  • Agriculture / methods*
  • Carbon / analysis*
  • Forests*
  • Soil / chemistry*

Substances

  • Soil
  • Carbon