Rapid Shifts in Soil Organic Carbon Mineralization within Sodic Landscapes

A. Chatterjee, B. Geaumont, T. DeSutter, D. G. Hopkins, M. Rakkar

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Sodic soils have poor plant growth and thus carbon (C) inputs are reduced compared to nonsodic soils. Soil samples were taken from three sodic zones: 1) patch-center, 2) transition, and 3) adjacent at three sites located in southwest North Dakota. Soil sodium adsorption ratio (SAR) was highest at patch centers (mean of three sites, SAR = 306), and then declined to transition (SAR = 29.5) and was lowest at adjacent (SAR = 9.21). The labile C pool showed an inverse relationship with SAR. In the northern Great Plains, C dynamics is highly variable and can be strongly controlled by the development and persistence of sodic soils.

Original languageEnglish (US)
Pages (from-to)255-263
Number of pages9
JournalArid Land Research and Management
Volume29
Issue number2
DOIs
StatePublished - Apr 15 2015
Externally publishedYes

Keywords

  • slickspots
  • sodic soil
  • sodium adsorption ratio
  • soil carbon mineralization

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