Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil
Soil carbon accumulation is largely dependent on net primary productivity. To our knowledge, there have been no studies investigating the dynamics of carbon accumulation in weathered subtropical soils, especially in managed eucalyptus plantations. We quantified the seasonal input of leaf litter, the...
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| Format: | Article |
| Language: | English |
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Sociedade Botânica do Brasil
2014-06-01
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| Series: | Acta Botânica Brasílica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200013&lng=en&tlng=en |
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| author | Tanise Luisa Sausen Guilherme Frederico de Paula Schaefer Michely Tomazi Lívia Scheunemann dos Santos Cimélio Bayer Luís Mauro Gonçalves Rosa |
| author_facet | Tanise Luisa Sausen Guilherme Frederico de Paula Schaefer Michely Tomazi Lívia Scheunemann dos Santos Cimélio Bayer Luís Mauro Gonçalves Rosa |
| author_sort | Tanise Luisa Sausen |
| collection | DOAJ |
| description | Soil carbon accumulation is largely dependent on net primary productivity. To our knowledge, there have been no studies investigating the dynamics of carbon accumulation in weathered subtropical soils, especially in managed eucalyptus plantations. We quantified the seasonal input of leaf litter, the leaf decomposition rate and soil carbon stocks in an commercial plantation of Eucalyptus saligna Labill. in southern Brazil. Our goal was to evaluate, through multiple linear regression, the influence that certain chemical characteristics of litter, as well as chemical and physical characteristics of soil, have on carbon accumulation in soil organic matter fractions. Variables related to the chemical composition of litter were not associated with the soil carbon stock in the particulate and mineral fractions. However, certain soil characteristics were significantly associated with the carbon stock in both fractions. The concentrations of nutrients associated with plant growth and productivity, such as phosphorus, sulfur, copper and zinc, were associated with variations in the labile carbon pool (particulate fraction). Clay content was strongly associated with the carbon stock in the mineral fraction. The carbon accumulation and stabilization in weathered subtropical Ultisol seems to be mainly associated with the intrinsic characteristics of the soil, particularly clay content, rather than with the quantity, chemical composition or decomposition rate of the litter. |
| first_indexed | 2024-12-21T21:14:38Z |
| format | Article |
| id | doaj.art-3552e6e0253a4788aebcccd7cb44c1b1 |
| institution | Directory Open Access Journal |
| issn | 1677-941X |
| language | English |
| last_indexed | 2024-12-21T21:14:38Z |
| publishDate | 2014-06-01 |
| publisher | Sociedade Botânica do Brasil |
| record_format | Article |
| series | Acta Botânica Brasílica |
| spelling | doaj.art-3552e6e0253a4788aebcccd7cb44c1b12022-12-21T18:50:03ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X2014-06-0128226627310.1590/S0102-33062014000200013S0102-33062014000200013Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern BrazilTanise Luisa Sausen0Guilherme Frederico de Paula Schaefer1Michely Tomazi2Lívia Scheunemann dos Santos3Cimélio Bayer4Luís Mauro Gonçalves Rosa5Universidade Regional Integrada do Alto do Uruguai e das MissõesUniversidade Federal do Rio Grande do SulEmbrapaUniversidade Federal do Rio Grande do SulUniversidade Federal do Rio Grande do SulUniversidade Federal do Rio Grande do SulSoil carbon accumulation is largely dependent on net primary productivity. To our knowledge, there have been no studies investigating the dynamics of carbon accumulation in weathered subtropical soils, especially in managed eucalyptus plantations. We quantified the seasonal input of leaf litter, the leaf decomposition rate and soil carbon stocks in an commercial plantation of Eucalyptus saligna Labill. in southern Brazil. Our goal was to evaluate, through multiple linear regression, the influence that certain chemical characteristics of litter, as well as chemical and physical characteristics of soil, have on carbon accumulation in soil organic matter fractions. Variables related to the chemical composition of litter were not associated with the soil carbon stock in the particulate and mineral fractions. However, certain soil characteristics were significantly associated with the carbon stock in both fractions. The concentrations of nutrients associated with plant growth and productivity, such as phosphorus, sulfur, copper and zinc, were associated with variations in the labile carbon pool (particulate fraction). Clay content was strongly associated with the carbon stock in the mineral fraction. The carbon accumulation and stabilization in weathered subtropical Ultisol seems to be mainly associated with the intrinsic characteristics of the soil, particularly clay content, rather than with the quantity, chemical composition or decomposition rate of the litter.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200013&lng=en&tlng=enweathered soilsdecompositionsoil organic matter fractionslitter input |
| spellingShingle | Tanise Luisa Sausen Guilherme Frederico de Paula Schaefer Michely Tomazi Lívia Scheunemann dos Santos Cimélio Bayer Luís Mauro Gonçalves Rosa Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil Acta Botânica Brasílica weathered soils decomposition soil organic matter fractions litter input |
| title | Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil |
| title_full | Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil |
| title_fullStr | Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil |
| title_full_unstemmed | Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil |
| title_short | Clay content drives carbon stocks in soils under a plantation of Eucalyptus saligna Labill. in southern Brazil |
| title_sort | clay content drives carbon stocks in soils under a plantation of eucalyptus saligna labill in southern brazil |
| topic | weathered soils decomposition soil organic matter fractions litter input |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200013&lng=en&tlng=en |
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