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Soil Inorganic Carbon as a Potential Sink in Carbon Storage in Dryland Soils—A Review

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Title Soil Inorganic Carbon as a Potential Sink in Carbon Storage in Dryland Soils—A Review
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Creator Anandkumar Naorem
Somasundaram Jayaraman
Ram C. Dalal
Ashok Patra
Cherukumalli Srinivasa Rao
Rattan Lal
 
Subject arid; carbonate; carbon sequestration; climate change; pedogenic carbonate
 
Description Not Available
Soil organic carbon (SOC) pool has been extensively studied in the carbon (C) cycling of terrestrial ecosystems. In dryland regions, however, soil inorganic carbon (SIC) has received increasing attention due to the high accumulation of SIC in arid soils contributed by its high temperature, low soil moisture, less vegetation, high salinity, and poor microbial activities. SIC storage in dryland soils is a complex process comprising multiple interactions of several factors such as climate, land use types, farm management practices, irrigation, inherent soil properties, soil biotic factors, etc. In addition, soil C studies in deeper layers of drylands have opened-up several study aspects on SIC storage. This review explains the mechanisms of SIC formation in dryland soils and critically discusses the SIC content in arid and semi-arid soils as compared to SOC. It also addresses the complex relationship between SIC and SOC in dryland soils. This review gives an overview of how climate change and anthropogenic management of soil might affect the SIC storage in dryland soils. Dryland soils could be an efficient sink in C sequestration through the formation of secondary carbonates. The review highlights the importance of an in-depth understanding of the C cycle in arid soils and emphasizes that SIC dynamics must be looked into broader perspective vis-à-vis C sequestration and climate change mitigation.
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Date 2024-01-04T09:28:39Z
2024-01-04T09:28:39Z
2022-07-21
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/81125
 
Language English
 
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Publisher Not Available