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Scope of horticultural land-use system in enhancing carbon sequestration in ferruginous soils of the semi-arid tropics

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Title Scope of horticultural land-use system in enhancing carbon sequestration in ferruginous soils of the semi-arid tropics
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Creator P. Chandran1,*, S. K. Ray1, S. L. Durge1, P. Raja1, A. M. Nimkar2, T. Bhattacharyya1 and D. K. Pal1
 
Subject Carbon sequestration, ferruginous soils, land-use systems, semi-arid tropics
 
Description Not Available
Soil exhaustion is a major concern particularly in ferruginous soils of the tropics and restoration of soil
quality through management of soil organic carbon (SOC) is one of the options to combat the situation. To
understand the scope of different systems to sequester organic carbon in ferruginous soils (Typic Rhodustalfs),
three representative systems, viz. agriculture (40 years), horticulture (20 years) and forestry (several
centuries) were selected in a contiguous area under semi-arid tropical climate. The study indicated that
the quasi-equilibrium value (QEV) of SOC decreased from 1.78 to 0.68% in the first 30 cm, when the soils
are used for agriculture instead of retaining them as forest. A shift from agricultural to horticultural system
over 20 years increased the QEV to 0.81% indicating accumulation of SOC. The highest threshold
value of SOC is observed in forest system, followed by horticultural and the lowest in agricultural system.
The present study indicates that horticultural system is a better option to enhance the SOC if forestry is not
feasible in these ferruginous soils.
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Date 2020-06-30T07:51:18Z
2020-06-30T07:51:18Z
2009-10-10
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/37586
 
Language English
 
Relation Not Available;
 
Publisher The Current Science Association, Bangalore