Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India
Soil organic carbon (SOC) and inorganic carbon (SIC) are important carbon reservoirs in terrestrial ecosystems. But, little attention was paid to carbon dynamics in hot arid regions of India. In order to assess the carbon stock after conversion of desert into irrigated arable land in arid regions, t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-03-01
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| Series: | Carbon Management |
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| Online Access: | http://dx.doi.org/10.1080/17583004.2021.1893128 |
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| author | Pravash Chandra Moharana Roomesh Kumar Jena Nirmal Kumar Ram Sakal Singh Sajjan Singh Rao |
| author_facet | Pravash Chandra Moharana Roomesh Kumar Jena Nirmal Kumar Ram Sakal Singh Sajjan Singh Rao |
| author_sort | Pravash Chandra Moharana |
| collection | DOAJ |
| description | Soil organic carbon (SOC) and inorganic carbon (SIC) are important carbon reservoirs in terrestrial ecosystems. But, little attention was paid to carbon dynamics in hot arid regions of India. In order to assess the carbon stock after conversion of desert into irrigated arable land in arid regions, the variability of SOC and SIC concentrations in the Suratgarh block of Rajasthan, India were analyzed using geostatistics. Soil samples were collected from depths of 0–15 cm, 15–30 cm, 30–60 cm and 60–90 cm at 150 sampling sites in the study area over an area of 3000 km2. The coefficient of variation (CV) for SOC and SIC was high for all depths (> 35%). Geostatistical analysis showed that spherical, circular, Gaussian and exponential models were the best-fit models for soil carbon stocks. The average stock of SOC and SIC were 4.55 and 10.9 Mg ha−1 in the 0–15 cm soil layer, and 3.02 Mg ha−1 SOC and 12.42 Mg ha−1 SIC in the 15–30 cm soil layer, respectively. Our results showed that SOC and SIC stocks over 0–90 cm were 15.54 and 76.71 Mg ha−1, respectively. There was significantly positive correlation (r = 0.33, p < 0.01) between SOC and SIC stock in 0–90 cm depth. Our study suggested that increasing SOC might lead to an increase in SIC stocks after conversion of desert into irrigated arable land. Thus the study highlights the importance of SIC in the carbon cycle of India’s arid region. |
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| id | doaj.art-817b41074a6f49dfb9fc57c7721c8e50 |
| institution | Directory Open Access Journal |
| issn | 1758-3004 1758-3012 |
| language | English |
| last_indexed | 2024-03-11T22:59:43Z |
| publishDate | 2021-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Carbon Management |
| spelling | doaj.art-817b41074a6f49dfb9fc57c7721c8e502023-09-21T15:09:06ZengTaylor & Francis GroupCarbon Management1758-30041758-30122021-03-0112215316510.1080/17583004.2021.18931281893128Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of IndiaPravash Chandra Moharana0Roomesh Kumar Jena1Nirmal Kumar2Ram Sakal Singh3Sajjan Singh Rao4Regional Centre, ICAR-National Bureau of Soil Survey and Land Use PlanningRegional Centre, ICAR-National Bureau of Soil Survey and Land Use PlanningICAR-National Bureau of Soil Survey and Land Use PlanningRegional Centre, ICAR-National Bureau of Soil Survey and Land Use PlanningRegional Centre, ICAR-National Bureau of Soil Survey and Land Use PlanningSoil organic carbon (SOC) and inorganic carbon (SIC) are important carbon reservoirs in terrestrial ecosystems. But, little attention was paid to carbon dynamics in hot arid regions of India. In order to assess the carbon stock after conversion of desert into irrigated arable land in arid regions, the variability of SOC and SIC concentrations in the Suratgarh block of Rajasthan, India were analyzed using geostatistics. Soil samples were collected from depths of 0–15 cm, 15–30 cm, 30–60 cm and 60–90 cm at 150 sampling sites in the study area over an area of 3000 km2. The coefficient of variation (CV) for SOC and SIC was high for all depths (> 35%). Geostatistical analysis showed that spherical, circular, Gaussian and exponential models were the best-fit models for soil carbon stocks. The average stock of SOC and SIC were 4.55 and 10.9 Mg ha−1 in the 0–15 cm soil layer, and 3.02 Mg ha−1 SOC and 12.42 Mg ha−1 SIC in the 15–30 cm soil layer, respectively. Our results showed that SOC and SIC stocks over 0–90 cm were 15.54 and 76.71 Mg ha−1, respectively. There was significantly positive correlation (r = 0.33, p < 0.01) between SOC and SIC stock in 0–90 cm depth. Our study suggested that increasing SOC might lead to an increase in SIC stocks after conversion of desert into irrigated arable land. Thus the study highlights the importance of SIC in the carbon cycle of India’s arid region.http://dx.doi.org/10.1080/17583004.2021.1893128soil organic carbonsoil inorganic carbonspatial variabilityhot arid ecosystem |
| spellingShingle | Pravash Chandra Moharana Roomesh Kumar Jena Nirmal Kumar Ram Sakal Singh Sajjan Singh Rao Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India Carbon Management soil organic carbon soil inorganic carbon spatial variability hot arid ecosystem |
| title | Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India |
| title_full | Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India |
| title_fullStr | Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India |
| title_full_unstemmed | Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India |
| title_short | Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India |
| title_sort | assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of india |
| topic | soil organic carbon soil inorganic carbon spatial variability hot arid ecosystem |
| url | http://dx.doi.org/10.1080/17583004.2021.1893128 |
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