Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon
Tropical deforestation for the establishment of tree cash crop plantations causes significant alterations to soil organic carbon (SOC) dynamics. Despite this recognition, the current Intergovernmental Panel on Climate Change (IPCC) tier 1 method has a SOC change factor of 1 (no SOC loss) for convers...
| Autores principales: | , , , , , , |
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Inglés |
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Stanford University
2020
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| Materias: | |
| Acceso en línea: | https://repositorio.inia.gob.pe/handle/20.500.12955/1191 https://doi.org/10.1073/pnas.1504628112 |
| _version_ | 1855028799574376448 |
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| author | Van Straaten, Oliver Corre, Marife D. Wolf, Katrin Tchienkoua, Martin Cuellar Bautista, José Eloy Matthews, Robin Veldkamp, Edzo |
| author_browse | Corre, Marife D. Cuellar Bautista, José Eloy Matthews, Robin Tchienkoua, Martin Van Straaten, Oliver Veldkamp, Edzo Wolf, Katrin |
| author_facet | Van Straaten, Oliver Corre, Marife D. Wolf, Katrin Tchienkoua, Martin Cuellar Bautista, José Eloy Matthews, Robin Veldkamp, Edzo |
| author_sort | Van Straaten, Oliver |
| collection | Repositorio INIA |
| description | Tropical deforestation for the establishment of tree cash crop plantations causes significant alterations to soil organic carbon (SOC) dynamics. Despite this recognition, the current Intergovernmental Panel on Climate Change (IPCC) tier 1 method has a SOC change factor of 1 (no SOC loss) for conversion of forests to perennial tree crops, because of scarcity of SOC data. In this pantropic study, conducted in active deforestation regions of Indonesia, Cameroon, and Peru, we quantified the impact of forest conversion to oil palm (Elaeis guineensis), rubber (Hevea brasiliensis), and cacao (Theobroma cacao) agroforestry plantations on SOC stocks within 3-m depth in deeply weathered mineral soils. We also investigated the underlying biophysical controls regulating SOC stock changes. Using a space-for-time substitution approach, we compared SOC stocks from paired forests (n = 32) and adjacent plantations (n = 54). Our study showed that deforestation for tree plantations decreased SOC stocks by up to 50%. The key variable that predicted SOC changes across plantations was the amount of SOC present in the forest before conversion—the higher the initial SOC, the higher the loss. Decreases in SOC stocks were most pronounced in the topsoil, although older plantations showed considerable SOC losses below 1-m depth. Our results suggest that (i) the IPCC tier 1 method should be revised from its current SOC change factor of 1 to 0.6 ± 0.1 for oil palm and cacao agroforestry plantations and 0.8 ± 0.3 for rubber plantations in the humid tropics; and (ii) land use management policies should protect natural forests on carbon-rich mineral soils to minimize SOC losses. |
| format | info:eu-repo/semantics/article |
| id | INIA1191 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Stanford University |
| publisherStr | Stanford University |
| record_format | dspace |
| spelling | INIA11912022-11-21T20:31:15Z Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon Van Straaten, Oliver Corre, Marife D. Wolf, Katrin Tchienkoua, Martin Cuellar Bautista, José Eloy Matthews, Robin Veldkamp, Edzo Soil carbon Land-use change Oil palm Rubber Cacao Forestal Tropical deforestation for the establishment of tree cash crop plantations causes significant alterations to soil organic carbon (SOC) dynamics. Despite this recognition, the current Intergovernmental Panel on Climate Change (IPCC) tier 1 method has a SOC change factor of 1 (no SOC loss) for conversion of forests to perennial tree crops, because of scarcity of SOC data. In this pantropic study, conducted in active deforestation regions of Indonesia, Cameroon, and Peru, we quantified the impact of forest conversion to oil palm (Elaeis guineensis), rubber (Hevea brasiliensis), and cacao (Theobroma cacao) agroforestry plantations on SOC stocks within 3-m depth in deeply weathered mineral soils. We also investigated the underlying biophysical controls regulating SOC stock changes. Using a space-for-time substitution approach, we compared SOC stocks from paired forests (n = 32) and adjacent plantations (n = 54). Our study showed that deforestation for tree plantations decreased SOC stocks by up to 50%. The key variable that predicted SOC changes across plantations was the amount of SOC present in the forest before conversion—the higher the initial SOC, the higher the loss. Decreases in SOC stocks were most pronounced in the topsoil, although older plantations showed considerable SOC losses below 1-m depth. Our results suggest that (i) the IPCC tier 1 method should be revised from its current SOC change factor of 1 to 0.6 ± 0.1 for oil palm and cacao agroforestry plantations and 0.8 ± 0.3 for rubber plantations in the humid tropics; and (ii) land use management policies should protect natural forests on carbon-rich mineral soils to minimize SOC losses. Study Description. Results. Discussion. Methods. References 2020-11-27T13:39:59Z 2020-11-27T13:39:59Z 2015-08-11 info:eu-repo/semantics/article Van Straaten, O.; Corre, M.; Wolf, K.; Tchienkoua, M.; Cuellar, E.; Matthews, R. & Veldkamp, E. (2015). Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon. PNAS 112 (32) 9956-9960. doi: 10.1073/pnas.1504628112 https://repositorio.inia.gob.pe/handle/20.500.12955/1191 PNAS https://doi.org/10.1073/pnas.1504628112 eng PNAS August 11, 2015 112 (32) 9956-9960 https://doi.org/10.1073/pnas.1504628112 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/pdf Indonesia, Camerún y Perú Stanford University Estados Unidos Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Soil carbon Land-use change Oil palm Rubber Cacao Forestal Van Straaten, Oliver Corre, Marife D. Wolf, Katrin Tchienkoua, Martin Cuellar Bautista, José Eloy Matthews, Robin Veldkamp, Edzo Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon |
| title | Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon |
| title_full | Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon |
| title_fullStr | Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon |
| title_full_unstemmed | Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon |
| title_short | Conversion of lowland tropical forests to tree cash crop plantations loses up to one-half of stored soil organic carbon |
| title_sort | conversion of lowland tropical forests to tree cash crop plantations loses up to one half of stored soil organic carbon |
| topic | Soil carbon Land-use change Oil palm Rubber Cacao Forestal |
| url | https://repositorio.inia.gob.pe/handle/20.500.12955/1191 https://doi.org/10.1073/pnas.1504628112 |
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