Carbon Storage Potential and its Distributions in the Particle Size Fractions in Harran Plain, Turkey
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Date
2022
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Journal ISSN
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Publisher
Ankara Üniversitesi
Abstract
In recent years, there has been increasing international interest in
increasing and sustainably managing soil C stocks to contribute to
combating climate change and support food security. In this context,
determining the C storage capacity of soils and examining the distribution
of soil C based on fractions is of great importance for a better
understanding of C dynamics. The present study investigated the storage
potential of soil organic carbon (SOC), inorganic carbon (SIC) and total
carbon (TC) in 16 selected profiles, and SOC and SIC distribution in five
different particle size fractions (2000-425µm, 425-150 µm, 150-106 µm,
106-75 µm, <75 µm) of the Harran plain in Turkey. The results revealed
that the particle size distribution in the surface layer varied in the
following order depending on soil weight: 850-250> 2000-850> 250-
150> 150-75> 75 µm. The organic C content of the soils is low due to the
semi-arid climate conditions. Fraction-based soil SOC distribution was in
the following order: 11% at 2000-850 µm, 15% at 850-250 µm, 21% at
250-150 µm, 23% at 150-75 µm and <75 µm 30%. Organic matter
fractions differed according to the particle size distribution and the
applicable soil management system. Stable organic matter content was
significantly related to clay content and greatly influenced by the type of
soil management used.
Description
Keywords
Soil organic carbon, Soil inorganic carbon