Predicting Total Organic Carbon Content of Soils from Walkley and Black Analysis
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Title |
Predicting Total Organic Carbon Content of Soils from Walkley and Black Analysis
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Creator |
Pramod Jha, A. K. Biswas, Brij Lal Lakaria, R. Saha, Muneshwar Singh & A. Subba Rao
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Subject |
Climate, soil texture, total soil organic carbon, Walkley–Black carbon
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Description |
Not Available
Globally, there is problem of computing soil carbon stock because the Walkley–Black method gives only an approximation of soil organic carbon content. Until now, no universal relationship between Walkley–Black carbon (WBC) and total soil organic carbon (TOC) has been developed that could be applicable in all kinds of soil. In the present study, relationships between WBC and TOC were established from samples collected from central and northern India. TOC was measured by dry combustion technique and WBC was determined by wet digestion methods. A relationship between WBC and TOC was developed by taking into account silt + clay content (SICL) of soil and mean annual rainfall (MAR) of the region (adj. R2 = 0.99, n = 100). The present study gives an easy approach to measure TOC by easily available data sets (WBC, SICL, and MAR). Using this relationship, computation of soil carbon stock that was done earlier with WBC values could be revisited and improved. Not Available |
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Date |
2020-05-15T14:31:44Z
2020-05-15T14:31:44Z 2014-04-01 |
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Type |
Research Paper
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/35671 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Not Available
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