Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar
The effect of biochar on the soil carbon mineralization priming effect depends on the characteristics of the raw materials, production method and pyrolysis conditions. The goal of the present study is to evaluate the impact of three different types of biochar on physicochemical properties and CO<...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2014-06-01
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| Series: | Solid Earth |
| Online Access: | http://www.solid-earth.net/5/585/2014/se-5-585-2014.pdf |
| _version_ | 1818293906311217152 |
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| author | P. Cely A. M. Tarquis J. Paz-Ferreiro A. Méndez G. Gascó |
| author_facet | P. Cely A. M. Tarquis J. Paz-Ferreiro A. Méndez G. Gascó |
| author_sort | P. Cely |
| collection | DOAJ |
| description | The effect of biochar on the
soil carbon mineralization priming effect depends on the characteristics of
the raw materials, production method and pyrolysis conditions. The goal of
the present study is to evaluate the impact of three different types of
biochar on physicochemical properties and CO<sub>2</sub> emissions of a sandy loam
soil. For this purpose, soil was amended with three different biochars (BI,
BII and BIII) at a rate of 8 wt% and soil CO<sub>2</sub> emissions were
measured for 45 days. BI is produced from a mixed wood sieving from wood chip
production, BII from a mixture of paper sludge and wheat husks and BIII from
sewage sludge. Cumulative CO<sub>2</sub> emissions of biochars, soil and amended
soil were well fit to a simple first-order kinetic model with correlation
coefficients (<i>r</i><sup>2</sup>) greater than 0.97. Results show a negative priming
effect in the soil after addition of BI and a positive priming effect in the
case of soil amended with BII and BIII. These results can be related to
different biochar properties such as carbon content, carbon aromaticity,
volatile matter, fixed carbon, easily oxidized organic carbon or metal and
phenolic substance content in addition to surface biochar properties. Three
biochars increased the values of soil field capacity and wilting point, while
effects over pH and cation exchange capacity were not observed. |
| first_indexed | 2024-12-13T03:23:18Z |
| format | Article |
| id | doaj.art-5fd4014ff52843c2b1cccace392dd756 |
| institution | Directory Open Access Journal |
| issn | 1869-9510 1869-9529 |
| language | English |
| last_indexed | 2024-12-13T03:23:18Z |
| publishDate | 2014-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Solid Earth |
| spelling | doaj.art-5fd4014ff52843c2b1cccace392dd7562022-12-22T00:01:19ZengCopernicus PublicationsSolid Earth1869-95101869-95292014-06-015158559410.5194/se-5-585-2014Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biocharP. Cely0A. M. Tarquis1J. Paz-Ferreiro2A. Méndez3G. Gascó4Departamento de Edafología. E.T.S.I. Agrónomos. Universidad Politécnica de Madrid, Ciudad Universitaria, 28004 Madrid, SpainCEIGRAM, Universidad Politécnica de Madrid, Ciudad Universitaria, 28004 Madrid, SpainDepartamento de Edafología. E.T.S.I. Agrónomos. Universidad Politécnica de Madrid, Ciudad Universitaria, 28004 Madrid, SpainDepartamento de Ingeniería de Materiales. E.T.S.I. Minas. Universidad Politécnica de Madrid, C/Ríos Rosas no. 21, 28003 Madrid, SpainDepartamento de Edafología. E.T.S.I. Agrónomos. Universidad Politécnica de Madrid, Ciudad Universitaria, 28004 Madrid, SpainThe effect of biochar on the soil carbon mineralization priming effect depends on the characteristics of the raw materials, production method and pyrolysis conditions. The goal of the present study is to evaluate the impact of three different types of biochar on physicochemical properties and CO<sub>2</sub> emissions of a sandy loam soil. For this purpose, soil was amended with three different biochars (BI, BII and BIII) at a rate of 8 wt% and soil CO<sub>2</sub> emissions were measured for 45 days. BI is produced from a mixed wood sieving from wood chip production, BII from a mixture of paper sludge and wheat husks and BIII from sewage sludge. Cumulative CO<sub>2</sub> emissions of biochars, soil and amended soil were well fit to a simple first-order kinetic model with correlation coefficients (<i>r</i><sup>2</sup>) greater than 0.97. Results show a negative priming effect in the soil after addition of BI and a positive priming effect in the case of soil amended with BII and BIII. These results can be related to different biochar properties such as carbon content, carbon aromaticity, volatile matter, fixed carbon, easily oxidized organic carbon or metal and phenolic substance content in addition to surface biochar properties. Three biochars increased the values of soil field capacity and wilting point, while effects over pH and cation exchange capacity were not observed.http://www.solid-earth.net/5/585/2014/se-5-585-2014.pdf |
| spellingShingle | P. Cely A. M. Tarquis J. Paz-Ferreiro A. Méndez G. Gascó Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar Solid Earth |
| title | Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar |
| title_full | Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar |
| title_fullStr | Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar |
| title_full_unstemmed | Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar |
| title_short | Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar |
| title_sort | factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar |
| url | http://www.solid-earth.net/5/585/2014/se-5-585-2014.pdf |
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