Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review
The agroforestry systems with a high potential for C sequestration are those degraded by poor management strategies. Studies on changes in soil C status in these ecosystems mostly take into account labile C pools. Labile and stable soil organic matter (SOM) fractions are affected by soil management...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/12/10/1598 |
| _version_ | 1797476281792593920 |
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| author | Corina Carranca Filipe Pedra Manuel Madeira |
| author_facet | Corina Carranca Filipe Pedra Manuel Madeira |
| author_sort | Corina Carranca |
| collection | DOAJ |
| description | The agroforestry systems with a high potential for C sequestration are those degraded by poor management strategies. Studies on changes in soil C status in these ecosystems mostly take into account labile C pools. Labile and stable soil organic matter (SOM) fractions are affected by soil management and land-use changes. Stable C pools are essential to understanding effects of land-use on soil C storage in the long term. The SOM stability is partly enhanced by the interaction of SOM with minerals and its inclusion into soil aggregates. Recalcitrant substances (e.g., lignin and chitin) also contribute to the passive SOM fraction. Macroaggregates mostly reflect the influence of plant roots and coarse intra-aggregate particulate SOM (POM), whereas microaggregates reflect the influence of fine interaggregate POM, clay concentration and humified SOM fraction. Often, POM is more sensitive to soil management changes than total SOM. Glomalin is a recalcitrant protein consisting of chitin produced by mycorrhizal fungi to protect hyphae. Glomalin has implications on C sequestration in agroforestry soils, but further research is needed before any prediction can be made. One challenge is reducing the CO<sub>2</sub> emission from roots, and increasing the recalcitrant root C. |
| first_indexed | 2024-03-09T20:56:47Z |
| format | Article |
| id | doaj.art-bf0e1be1d6d2475bb7fa3f8adf742e94 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T20:56:47Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj.art-bf0e1be1d6d2475bb7fa3f8adf742e942023-11-23T22:20:58ZengMDPI AGAgriculture2077-04722022-10-011210159810.3390/agriculture12101598Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A ReviewCorina Carranca0Filipe Pedra1Manuel Madeira2INIAV-Instituto Nacional de Investigação Agrária e Veterinária, GREEN-IT, ITQB NOVA-Instituto de Tecnologia Química e Biológica/NOVA Universidade de Lisboa, Nova Oeiras, 2784-505 Oeiras, PortugalINIAV-Instituto Nacional de Investigação Agrária e Veterinária, 1300-596 Lisboa, PortugalCEF-Centro de Estudos Florestais, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, PortugalThe agroforestry systems with a high potential for C sequestration are those degraded by poor management strategies. Studies on changes in soil C status in these ecosystems mostly take into account labile C pools. Labile and stable soil organic matter (SOM) fractions are affected by soil management and land-use changes. Stable C pools are essential to understanding effects of land-use on soil C storage in the long term. The SOM stability is partly enhanced by the interaction of SOM with minerals and its inclusion into soil aggregates. Recalcitrant substances (e.g., lignin and chitin) also contribute to the passive SOM fraction. Macroaggregates mostly reflect the influence of plant roots and coarse intra-aggregate particulate SOM (POM), whereas microaggregates reflect the influence of fine interaggregate POM, clay concentration and humified SOM fraction. Often, POM is more sensitive to soil management changes than total SOM. Glomalin is a recalcitrant protein consisting of chitin produced by mycorrhizal fungi to protect hyphae. Glomalin has implications on C sequestration in agroforestry soils, but further research is needed before any prediction can be made. One challenge is reducing the CO<sub>2</sub> emission from roots, and increasing the recalcitrant root C.https://www.mdpi.com/2077-0472/12/10/1598arbuscular mycorrhizalatmospheric CO<sub>2</sub> mitigationconceptslabile and stable soil organic matterland usesoil aggregates |
| spellingShingle | Corina Carranca Filipe Pedra Manuel Madeira Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review Agriculture arbuscular mycorrhizal atmospheric CO<sub>2</sub> mitigation concepts labile and stable soil organic matter land use soil aggregates |
| title | Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review |
| title_full | Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review |
| title_fullStr | Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review |
| title_full_unstemmed | Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review |
| title_short | Enhancing Carbon Sequestration in Mediterranean Agroforestry Systems: A Review |
| title_sort | enhancing carbon sequestration in mediterranean agroforestry systems a review |
| topic | arbuscular mycorrhizal atmospheric CO<sub>2</sub> mitigation concepts labile and stable soil organic matter land use soil aggregates |
| url | https://www.mdpi.com/2077-0472/12/10/1598 |
| work_keys_str_mv | AT corinacarranca enhancingcarbonsequestrationinmediterraneanagroforestrysystemsareview AT filipepedra enhancingcarbonsequestrationinmediterraneanagroforestrysystemsareview AT manuelmadeira enhancingcarbonsequestrationinmediterraneanagroforestrysystemsareview |