Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy.
Paddy soils are classified as wetlands which play a vital role in climatic change and food production. Soil carbon (C), especially soil organic C (SOC), in paddy soils has been received considerable attention as of recent. However, considerably less attention has been given to soil inorganic carbon...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2012-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3422307?pdf=render |
| _version_ | 1818067339328880640 |
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| author | Du Changwen Zhou Jianmin Keith W Goyne |
| author_facet | Du Changwen Zhou Jianmin Keith W Goyne |
| author_sort | Du Changwen |
| collection | DOAJ |
| description | Paddy soils are classified as wetlands which play a vital role in climatic change and food production. Soil carbon (C), especially soil organic C (SOC), in paddy soils has been received considerable attention as of recent. However, considerably less attention has been given to soil inorganic carbon (SIC) in paddy soils and the relationship between SOC and SIC at interface between soil and the atmosphere. The objective of this research was to investigate the utility of applying Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS) to explore SOC and SIC present near the surface (0-10 µm) of paddy soils. The FTIR-PAS spectra revealed an unique absorption region in the wavenumber range of 1,350-1,500 cm(-1) that was dominated by C-O (carbonate) and C-H bending vibrations (organic materials), and these vibrations were used to represented SIC and SOC, respectively. A circular distribution between SIC and SOC on the surface of paddy soils was determined using principal component analysis (PCA), and the distribution showed no significant relationship with the age of paddy soil. However, SIC and SOC were negatively correlated, and higher SIC content was observed near the soil surface. This relationship suggests that SIC in soil surface plays important roles in the soil C dynamics. |
| first_indexed | 2024-12-10T15:22:06Z |
| format | Article |
| id | doaj.art-1da9151f58fb468b9e6e21d53540e195 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-10T15:22:06Z |
| publishDate | 2012-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-1da9151f58fb468b9e6e21d53540e1952022-12-22T01:43:39ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0178e4336810.1371/journal.pone.0043368Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy.Du ChangwenZhou JianminKeith W GoynePaddy soils are classified as wetlands which play a vital role in climatic change and food production. Soil carbon (C), especially soil organic C (SOC), in paddy soils has been received considerable attention as of recent. However, considerably less attention has been given to soil inorganic carbon (SIC) in paddy soils and the relationship between SOC and SIC at interface between soil and the atmosphere. The objective of this research was to investigate the utility of applying Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS) to explore SOC and SIC present near the surface (0-10 µm) of paddy soils. The FTIR-PAS spectra revealed an unique absorption region in the wavenumber range of 1,350-1,500 cm(-1) that was dominated by C-O (carbonate) and C-H bending vibrations (organic materials), and these vibrations were used to represented SIC and SOC, respectively. A circular distribution between SIC and SOC on the surface of paddy soils was determined using principal component analysis (PCA), and the distribution showed no significant relationship with the age of paddy soil. However, SIC and SOC were negatively correlated, and higher SIC content was observed near the soil surface. This relationship suggests that SIC in soil surface plays important roles in the soil C dynamics.http://europepmc.org/articles/PMC3422307?pdf=render |
| spellingShingle | Du Changwen Zhou Jianmin Keith W Goyne Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy. PLoS ONE |
| title | Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy. |
| title_full | Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy. |
| title_fullStr | Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy. |
| title_full_unstemmed | Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy. |
| title_short | Organic and inorganic carbon in paddy soil as evaluated by mid-infrared photoacoustic spectroscopy. |
| title_sort | organic and inorganic carbon in paddy soil as evaluated by mid infrared photoacoustic spectroscopy |
| url | http://europepmc.org/articles/PMC3422307?pdf=render |
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