Risks to carbon storage from land-use change revealed by peat thickness maps of Peru
Tropical peatlands are among the most carbon-dense ecosystems but land-use change has led to the loss of large peatland areas, associated with substantial greenhouse gas emissions. To design effective conservation and restoration policies, maps of the location and carbon storage of tropical peatlands are vital. This is especially so in countries such as Peru where the distribution of its large, hydrologically intact peatlands is poorly known. Here field and remote sensing data support the model development of peatland extent and thickness for lowland Peruvian Amazonia. We estimate a peatland area of 62,714 km2 (5th and 95th confidence interval percentiles of 58,325 and 67,102 km2, respectively) and carbon stock of 5.4 (2.6–10.6) PgC, a value approaching the entire above-ground carbon stock of Peru but contained within just 5% of its land area. Combining the map of peatland extent with national land-cover data we reveal small but growing areas of deforestation and associated CO2 emissions from peat decomposition due to conversion to mining, urban areas and agriculture. The emissions from peatland areas classified as forest in 2000 represent 1–4% of Peruvian CO2 forest emissions between 2000 and 2016. We suggest that bespoke monitoring, protection and sustainable management of tropical peatlands are required to avoid further degradation and CO2 emissions.
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Format: | Journal Article biblioteca |
Language: | English |
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Springer
2022-05
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Subjects: | peatlands, land use change, carbon sinks, peat soils, |
Online Access: | https://hdl.handle.net/10568/120168 https://doi.org/10.1038/s41561-022-00923-4 |
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dig-cgspace-10568-1201682023-12-08T19:36:04Z Risks to carbon storage from land-use change revealed by peat thickness maps of Peru Hastie, A. Honorio Coronado, E.N. Reyna, J. Mitchard, E.T.A. Åkesson, C.M. Baker, T.R. Cole, L.E.S. Oroche, C.J.C. Dargie, G.C. Dávila, N. De Grandi, E.C. Del Águila, J. Del Castillo Torres, D. De La Cruz Paiva, R. Draper, F.C. Flores, G. Grández, J. Hergoualc’h, K. Householder, J.E. Janovec, J.P. Lähteenoja, O. Reyna, D. Rodríguez-Veiga, P. Roucoux, K.H. Tobler, M. Wheeler, C.E. Williams, M. Lawson, I.T. peatlands land use change carbon sinks peat soils Tropical peatlands are among the most carbon-dense ecosystems but land-use change has led to the loss of large peatland areas, associated with substantial greenhouse gas emissions. To design effective conservation and restoration policies, maps of the location and carbon storage of tropical peatlands are vital. This is especially so in countries such as Peru where the distribution of its large, hydrologically intact peatlands is poorly known. Here field and remote sensing data support the model development of peatland extent and thickness for lowland Peruvian Amazonia. We estimate a peatland area of 62,714 km2 (5th and 95th confidence interval percentiles of 58,325 and 67,102 km2, respectively) and carbon stock of 5.4 (2.6–10.6) PgC, a value approaching the entire above-ground carbon stock of Peru but contained within just 5% of its land area. Combining the map of peatland extent with national land-cover data we reveal small but growing areas of deforestation and associated CO2 emissions from peat decomposition due to conversion to mining, urban areas and agriculture. The emissions from peatland areas classified as forest in 2000 represent 1–4% of Peruvian CO2 forest emissions between 2000 and 2016. We suggest that bespoke monitoring, protection and sustainable management of tropical peatlands are required to avoid further degradation and CO2 emissions. 2022-05 2022-07-19T07:53:54Z 2022-07-19T07:53:54Z Journal Article Hastie, A., Honorio Coronado, E.N., Reyna, J., Mitchard, E.T.A., Åkesson, C.M., Baker, T.R., Cole, L.E.S., Oroche, C.J.C., Dargie, G., Dávila, N., De Grandi, E.C., Del Águila, J., Del Castillo Torres, D., De La Cruz Paiva, R., Draper, F.C., Flores, G., Grández, J., Hergoualc’h, K., Householder, J.E., Janovec, J.P., Lähteenoja, O., Reyna, D., Rodríguez-Veiga, P., Roucoux, K.H., Tobler, M., Wheeler, C.E., Williams, M. and Lawson, I.T. 2022. Risks to carbon storage from land-use change revealed by peat thickness maps of Peru. Nature Geoscience 15(5): 369-374. https://doi.org/10.1038/s41561-022-00923-4 1752-0894 https://hdl.handle.net/10568/120168 https://doi.org/10.1038/s41561-022-00923-4 en Copyrighted; all rights reserved Limited Access p. 369-374 Springer Nature Geoscience |
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peatlands land use change carbon sinks peat soils peatlands land use change carbon sinks peat soils |
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peatlands land use change carbon sinks peat soils peatlands land use change carbon sinks peat soils Hastie, A. Honorio Coronado, E.N. Reyna, J. Mitchard, E.T.A. Åkesson, C.M. Baker, T.R. Cole, L.E.S. Oroche, C.J.C. Dargie, G.C. Dávila, N. De Grandi, E.C. Del Águila, J. Del Castillo Torres, D. De La Cruz Paiva, R. Draper, F.C. Flores, G. Grández, J. Hergoualc’h, K. Householder, J.E. Janovec, J.P. Lähteenoja, O. Reyna, D. Rodríguez-Veiga, P. Roucoux, K.H. Tobler, M. Wheeler, C.E. Williams, M. Lawson, I.T. Risks to carbon storage from land-use change revealed by peat thickness maps of Peru |
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Tropical peatlands are among the most carbon-dense ecosystems but land-use change has led to the loss of large peatland areas, associated with substantial greenhouse gas emissions. To design effective conservation and restoration policies, maps of the location and carbon storage of tropical peatlands are vital. This is especially so in countries such as Peru where the distribution of its large, hydrologically intact peatlands is poorly known. Here field and remote sensing data support the model development of peatland extent and thickness for lowland Peruvian Amazonia. We estimate a peatland area of 62,714 km2 (5th and 95th confidence interval percentiles of 58,325 and 67,102 km2, respectively) and carbon stock of 5.4 (2.6–10.6) PgC, a value approaching the entire above-ground carbon stock of Peru but contained within just 5% of its land area. Combining the map of peatland extent with national land-cover data we reveal small but growing areas of deforestation and associated CO2 emissions from peat decomposition due to conversion to mining, urban areas and agriculture. The emissions from peatland areas classified as forest in 2000 represent 1–4% of Peruvian CO2 forest emissions between 2000 and 2016. We suggest that bespoke monitoring, protection and sustainable management of tropical peatlands are required to avoid further degradation and CO2 emissions. |
format |
Journal Article |
topic_facet |
peatlands land use change carbon sinks peat soils |
author |
Hastie, A. Honorio Coronado, E.N. Reyna, J. Mitchard, E.T.A. Åkesson, C.M. Baker, T.R. Cole, L.E.S. Oroche, C.J.C. Dargie, G.C. Dávila, N. De Grandi, E.C. Del Águila, J. Del Castillo Torres, D. De La Cruz Paiva, R. Draper, F.C. Flores, G. Grández, J. Hergoualc’h, K. Householder, J.E. Janovec, J.P. Lähteenoja, O. Reyna, D. Rodríguez-Veiga, P. Roucoux, K.H. Tobler, M. Wheeler, C.E. Williams, M. Lawson, I.T. |
author_facet |
Hastie, A. Honorio Coronado, E.N. Reyna, J. Mitchard, E.T.A. Åkesson, C.M. Baker, T.R. Cole, L.E.S. Oroche, C.J.C. Dargie, G.C. Dávila, N. De Grandi, E.C. Del Águila, J. Del Castillo Torres, D. De La Cruz Paiva, R. Draper, F.C. Flores, G. Grández, J. Hergoualc’h, K. Householder, J.E. Janovec, J.P. Lähteenoja, O. Reyna, D. Rodríguez-Veiga, P. Roucoux, K.H. Tobler, M. Wheeler, C.E. Williams, M. Lawson, I.T. |
author_sort |
Hastie, A. |
title |
Risks to carbon storage from land-use change revealed by peat thickness maps of Peru |
title_short |
Risks to carbon storage from land-use change revealed by peat thickness maps of Peru |
title_full |
Risks to carbon storage from land-use change revealed by peat thickness maps of Peru |
title_fullStr |
Risks to carbon storage from land-use change revealed by peat thickness maps of Peru |
title_full_unstemmed |
Risks to carbon storage from land-use change revealed by peat thickness maps of Peru |
title_sort |
risks to carbon storage from land-use change revealed by peat thickness maps of peru |
publisher |
Springer |
publishDate |
2022-05 |
url |
https://hdl.handle.net/10568/120168 https://doi.org/10.1038/s41561-022-00923-4 |
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