{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T00:50:40Z","timestamp":1760057440997,"version":"build-2065373602"},"reference-count":61,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,2,3]],"date-time":"2025-02-03T00:00:00Z","timestamp":1738540800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"N\u00baAgroClima projects","award":["PO-CI-01-0247-FEDER-047050","n.\u00ba 51","UIDB\/50009\/2025","UIDP\/50009\/2025","LA\/P\/0083\/2020"],"award-info":[{"award-number":["PO-CI-01-0247-FEDER-047050","n.\u00ba 51","UIDB\/50009\/2025","UIDP\/50009\/2025","LA\/P\/0083\/2020"]}]},{"name":"BLOCKCHAIN.PT\u2014Descentralizar Portugal com Blockchain","award":["PO-CI-01-0247-FEDER-047050","n.\u00ba 51","UIDB\/50009\/2025","UIDP\/50009\/2025","LA\/P\/0083\/2020"],"award-info":[{"award-number":["PO-CI-01-0247-FEDER-047050","n.\u00ba 51","UIDB\/50009\/2025","UIDP\/50009\/2025","LA\/P\/0083\/2020"]}]},{"name":"FCT\/MCTES (PIDDAC)","award":["PO-CI-01-0247-FEDER-047050","n.\u00ba 51","UIDB\/50009\/2025","UIDP\/50009\/2025","LA\/P\/0083\/2020"],"award-info":[{"award-number":["PO-CI-01-0247-FEDER-047050","n.\u00ba 51","UIDB\/50009\/2025","UIDP\/50009\/2025","LA\/P\/0083\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>Soil carbon sequestration (SCS) is a nature-based, low-cost climate mitigation strategy that also contributes to the climate adaptation of agricultural systems. Some land-use and land-management practices potentially lead to an enhancement of the soil organic carbon (SOC) sink, such as no-till, the use of cover crops, leaving residues on fields, improving the variety of legume species in grasslands and reducing grazing intensity. However, uncertainties remain both in estimating and measuring the impact of the application of certain practices, as these vary with the soil, climate and historic land use. IPCC (Intergovernmental Panel on Climate Change) guidelines are commonly used to estimate SOC and SOC sequestration potentials at different tiers. Here, the IPCC\u2019s tier 1 methodology was applied to estimate (1) the sequestration potential of nine mitigation practices and (2) the emission or sequestration potential of four current land-change trends for n = 7092 unique agricultural sites in mainland Portugal. The conversion of irrigated crops to improved grasslands resulted in the highest average unit sequestration (1.05 tC ha\u22121 yr\u22121), while cropland conversion to poor degraded pasture (abandonment) resulted in the highest unit SOC loss (\u22120.08 tC ha\u22121 yr\u22121). The abandonment of cropland results in a national SOC loss of up to 0.09 MtC yr\u22121, while the improvement of poor degraded pastures has the highest national sequestration potential, equal to 0.6 MtC yr\u22121 (2.2 MtCO2eq yr\u22121), about 4% of Portugal\u2019s emissions in 2021, if applied in all managed areas. The results enable a comparison between different practices and land uses; however, to enhance accuracy, a higher tier methodology tailored to the Portuguese context should be developed.<\/jats:p>","DOI":"10.3390\/su17031223","type":"journal-article","created":{"date-parts":[[2025,2,3]],"date-time":"2025-02-03T08:47:57Z","timestamp":1738572477000},"page":"1223","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Estimating Soil Carbon Sequestration Potential in Portuguese Agricultural Soils Through Land-Management and Land-Use Changes"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-2998-1434","authenticated-orcid":false,"given":"Mariana","family":"Raposo","sequence":"first","affiliation":[{"name":"MARETEC\u2014Marine, Environment and Technology Centre, LARSyS\u2014Laboratory for Robotics and Engineering Systems, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisbon, Portugal"}]},{"given":"Paulo","family":"Canaveira","sequence":"additional","affiliation":[{"name":"MARETEC\u2014Marine, Environment and Technology Centre, LARSyS\u2014Laboratory for Robotics and Engineering Systems, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisbon, Portugal"},{"name":"LEAF\u2014Linking Landscape, Environment, Agriculture and Food, TERRA\u2014Laborat\u00f3rio para a Sustentabilidade do Uso da Terra e dos Servi\u00e7os dos Ecossistemas, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6194-0405","authenticated-orcid":false,"given":"Tiago","family":"Domingos","sequence":"additional","affiliation":[{"name":"MARETEC\u2014Marine, Environment and Technology Centre, LARSyS\u2014Laboratory for Robotics and Engineering Systems, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,3]]},"reference":[{"key":"ref_1","unstructured":"Romero, J., and Lee, H. (2023). Summary for Policymakers. Climate Change 2023: Synthesis Report. A Report of the Intergovernmental Panel on Climate Change. Contribution of Working Groups I, II and III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, IPCC."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1098\/rstb.2007.2184","article-title":"Greenhouse Gas Mitigation in Agriculture","volume":"363","author":"Smith","year":"2008","journal-title":"Philos. Trans. R. Soc. B Biol. Sci."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"815","DOI":"10.1098\/rstb.2007.2185","article-title":"Carbon Sequestration","volume":"363","author":"Lal","year":"2008","journal-title":"Philos. Trans. R. Soc. B Biol. 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