Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon
The Peruvian Amazon has been significantly affected by land use and climate change, decreasing decomposition processes, which cause a significant depletion of soil C stocks. In this study, we estimated soil organic C (SOC) mediated by different plant covers in coffee (Coffea arabica L.) plantations...
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
Instituto de Investigaciones Agropecuarias, INIA
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/20.500.12955/2302 https://doi.org/10.4067/S0718-58392023000500553 |
| _version_ | 1855490433295056896 |
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| author | Vallejos Torres, Geomar Gaona Jimenez, Nery Lozano, Andi Paredes, Christopher I. Lozano, Carlos M. Alva Arévalo, Alberto Saavedra Ramírez, Jorge Arévalo López, Luis Alberto Reategui, Keneth Mendoza, Wilfredo Baselly Villanueva, Juan Rodrigo Marín, César |
| author_browse | Alva Arévalo, Alberto Arévalo López, Luis Alberto Baselly Villanueva, Juan Rodrigo Gaona Jimenez, Nery Lozano, Andi Lozano, Carlos M. Marín, César Mendoza, Wilfredo Paredes, Christopher I. Reategui, Keneth Saavedra Ramírez, Jorge Vallejos Torres, Geomar |
| author_facet | Vallejos Torres, Geomar Gaona Jimenez, Nery Lozano, Andi Paredes, Christopher I. Lozano, Carlos M. Alva Arévalo, Alberto Saavedra Ramírez, Jorge Arévalo López, Luis Alberto Reategui, Keneth Mendoza, Wilfredo Baselly Villanueva, Juan Rodrigo Marín, César |
| author_sort | Vallejos Torres, Geomar |
| collection | Repositorio INIA |
| description | The Peruvian Amazon has been significantly affected by land use and climate change, decreasing decomposition processes, which cause a significant depletion of soil C stocks. In this study, we estimated soil organic C (SOC) mediated by different plant covers in coffee (Coffea arabica L.) plantations and secondary forests in several districts of the San Martín Region, Peru. We calculated the critical threshold, saturation point, and the organic C deficit of these Amazonian soils. The association between geography, soil physical-chemical characteristics, and SOC was estimated through principal component analysis. Across all sites of the study, SOC stock had an average value of 69.19 t ha-1, with 48.95 t ha-1 constituting inorganic C. The highest SOC stock (225.28 t ha-1) was observed under secondary forest in the Jepelacio district. The SOC stocks were positively correlated with altitude and CaCO3 content only in secondary forests. The current measured amount of organic C within 15 cm soil depth was 28.5 g C kg-1, which is very low and close to the critical threshold (20.6 g C kg-1) -estimated based on its clay and silt contents. Our SOC stocks measurements indicated a worrisome situation, as they are close to the critical threshold, which exposes this area to a greater and stronger degradation. |
| format | Artículo |
| id | INIA2302 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Instituto de Investigaciones Agropecuarias, INIA |
| publisherStr | Instituto de Investigaciones Agropecuarias, INIA |
| record_format | dspace |
| spelling | INIA23022025-03-09T15:00:32Z Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon Vallejos Torres, Geomar Gaona Jimenez, Nery Lozano, Andi Paredes, Christopher I. Lozano, Carlos M. Alva Arévalo, Alberto Saavedra Ramírez, Jorge Arévalo López, Luis Alberto Reategui, Keneth Mendoza, Wilfredo Baselly Villanueva, Juan Rodrigo Marín, César Coffea arabica Critical threshold Forestry soil Peru Plant cover Saturation point SOC deficit https://purl.org/pe-repo/ocde/ford#4.01.06 Coffea arabica Soil organic carbon Carbono orgánico del suelo Plant cover Ecosystems Ecosistema The Peruvian Amazon has been significantly affected by land use and climate change, decreasing decomposition processes, which cause a significant depletion of soil C stocks. In this study, we estimated soil organic C (SOC) mediated by different plant covers in coffee (Coffea arabica L.) plantations and secondary forests in several districts of the San Martín Region, Peru. We calculated the critical threshold, saturation point, and the organic C deficit of these Amazonian soils. The association between geography, soil physical-chemical characteristics, and SOC was estimated through principal component analysis. Across all sites of the study, SOC stock had an average value of 69.19 t ha-1, with 48.95 t ha-1 constituting inorganic C. The highest SOC stock (225.28 t ha-1) was observed under secondary forest in the Jepelacio district. The SOC stocks were positively correlated with altitude and CaCO3 content only in secondary forests. The current measured amount of organic C within 15 cm soil depth was 28.5 g C kg-1, which is very low and close to the critical threshold (20.6 g C kg-1) -estimated based on its clay and silt contents. Our SOC stocks measurements indicated a worrisome situation, as they are close to the critical threshold, which exposes this area to a greater and stronger degradation. 2023-10-04T13:41:05Z 2023-10-04T13:41:05Z 2023-10-31 info:eu-repo/semantics/article Vallejos-Torres, G.; Gaona-Jimenez, N.; Lozano, A.; Paredes, C.; Lozano, C.; Alva-Arévalo, A.; Saavedra-Ramírez, J.; Arévalo, L.; Reategui, K.; Mendoza, W.; Baselly-Villanueva, J.; Marín, C. (2023). Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon. Chilean Journal of Agricultural Research, 83(5), 553-564. doi: 10.4067/S0718-58392023000500553 0718-5839 https://hdl.handle.net/20.500.12955/2302 https://doi.org/10.4067/S0718-58392023000500553 eng urn:issn:0718-5839 Chilean Journal of Agricultural Research info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/4.0/ application/pdf application/pdf Instituto de Investigaciones Agropecuarias, INIA CL Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Coffea arabica Critical threshold Forestry soil Peru Plant cover Saturation point SOC deficit https://purl.org/pe-repo/ocde/ford#4.01.06 Coffea arabica Soil organic carbon Carbono orgánico del suelo Plant cover Ecosystems Ecosistema Vallejos Torres, Geomar Gaona Jimenez, Nery Lozano, Andi Paredes, Christopher I. Lozano, Carlos M. Alva Arévalo, Alberto Saavedra Ramírez, Jorge Arévalo López, Luis Alberto Reategui, Keneth Mendoza, Wilfredo Baselly Villanueva, Juan Rodrigo Marín, César Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon |
| title | Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon |
| title_full | Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon |
| title_fullStr | Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon |
| title_full_unstemmed | Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon |
| title_short | Soil organic carbon balance across contrasting plant cover ecosystems in the Peruvian Amazon |
| title_sort | soil organic carbon balance across contrasting plant cover ecosystems in the peruvian amazon |
| topic | Coffea arabica Critical threshold Forestry soil Peru Plant cover Saturation point SOC deficit https://purl.org/pe-repo/ocde/ford#4.01.06 Coffea arabica Soil organic carbon Carbono orgánico del suelo Plant cover Ecosystems Ecosistema |
| url | https://hdl.handle.net/20.500.12955/2302 https://doi.org/10.4067/S0718-58392023000500553 |
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