All Outputs (31)

Exploring Spatial Patterns of Tropical Peatland Subsidence in Selangor, Malaysia Using the APSIS-DInSAR Technique (2024)
Journal Article
de la Barreda-Bautista, B., Ledger, M. J., Sjögersten, S., Gee, D., Sowter, A., Cole, B., …Boyd, D. S. (2024). Exploring Spatial Patterns of Tropical Peatland Subsidence in Selangor, Malaysia Using the APSIS-DInSAR Technique. Remote Sensing, 16(12), Article 2249. https://doi.org/10.3390/rs16122249

Tropical peatlands in Southeast Asia have experienced widespread subsidence due to forest clearance and drainage for agriculture, oil palm and pulp wood production, causing concerns about their function as a long-term carbon store. Peatland drainage... Read More about Exploring Spatial Patterns of Tropical Peatland Subsidence in Selangor, Malaysia Using the APSIS-DInSAR Technique.

InSAR-measured permafrost degradation of palsa peatlands in northern Sweden (2024)
Journal Article
Valman, S., Siewert, M. B., Boyd, D., Ledger, M., Gee, D., de la Barreda-Bautista, B., …Sjögersten, S. (2024). InSAR-measured permafrost degradation of palsa peatlands in northern Sweden. Cryosphere, 18(4), 1773-1790. https://doi.org/10.5194/tc-18-1773-2024

Climate warming is degrading palsa peatlands across the circumpolar permafrost region. Permafrost degradation may lead to ecosystem collapse and potentially strong climate feedbacks, as this ecosystem is an important carbon store and can transition t... Read More about InSAR-measured permafrost degradation of palsa peatlands in northern Sweden.

Assessment of variability of peat physicochemical properties, subsidence and their interactions within Selangor forests (2023)
Journal Article
Dhandapani, S., Evers, S., Boyd, D. S., Yesuf, G., Kinneen, L., Haughan, A., & Sjogersten, S. (2023). Assessment of variability of peat physicochemical properties, subsidence and their interactions within Selangor forests. European Journal of Soil Science, 74(6), Article e13431. https://doi.org/10.1111/ejss.13431

Tropical peat swamp forests are carbon-rich ecosystems both above- and belowground, which play a major role in the climate balance of the earth. The majority of the world's tropical peat forest cover is located in Southeast Asia and is increasingly t... Read More about Assessment of variability of peat physicochemical properties, subsidence and their interactions within Selangor forests.

Assessment of differences in peat physico-chemical properties, surface subsidence and GHG emissions between the major land-uses of Selangor peatlands (2023)
Journal Article
Dhandapani, S., Evers, S., Boyd, D., Evans, C. D., Page, S., Parish, F., & Sjogersten, S. (2023). Assessment of differences in peat physico-chemical properties, surface subsidence and GHG emissions between the major land-uses of Selangor peatlands. CATENA, 230, Article 107255. https://doi.org/10.1016/j.catena.2023.107255

Tropical peatlands are globally important ecosystems for carbon storage, biodiversity conservation, water storage and regulation, and several other valuable ecosystem services. Despite their importance, peatlands in Southeast Asia have been heavily d... Read More about Assessment of differences in peat physico-chemical properties, surface subsidence and GHG emissions between the major land-uses of Selangor peatlands.

Monitoring holopelagic Sargassum spp. along the Mexican Caribbean coast: understanding and addressing user requirements for satellite remote sensing (2023)
Journal Article
de la Barreda-Bautista, B., Metcalfe, S. E., Smith, G., Sjögersten, S., Boyd, D. S., Cerdeira-Estrada, S., …Foody, G. (2023). Monitoring holopelagic Sargassum spp. along the Mexican Caribbean coast: understanding and addressing user requirements for satellite remote sensing. Frontiers in Marine Science, 10, Article 1166000. https://doi.org/10.3389/fmars.2023.1166000

Massive influxes of holopelagic Sargassum spp. (Sargassum natans and S. fluitans) have been causing major economic, environmental and ecological problems along the Caribbean coast of Mexico. Predicting the arrival of the sargassum as an aid to addres... Read More about Monitoring holopelagic Sargassum spp. along the Mexican Caribbean coast: understanding and addressing user requirements for satellite remote sensing.

Hydroclimatic vulnerability of peat carbon in the central Congo Basin. (2022)
Journal Article
Garcin, Y., Schefuß, E., Dargie, G. C., Hawthorne, D., Lawson, I. T., Sebag, D., …Lewis, S. L. (2022). Hydroclimatic vulnerability of peat carbon in the central Congo Basin. Nature, 612, 277–282. https://doi.org/10.1038/s41586-022-05389-3

The forested swamps of the central Congo Basin store approximately 30 billion metric tonnes of carbon in peat . Little is known about the vulnerability of these carbon stocks. Here we investigate this vulnerability using peat cores from a large inter... Read More about Hydroclimatic vulnerability of peat carbon in the central Congo Basin..

Temporal changes in litterfall and potential nutrient return in cocoa agroforestry systems under organic and conventional management, Ghana (2021)
Journal Article
Asigbaase, M., Dawoe, E., Lomax, B. H., & Sjogersten, S. (2021). Temporal changes in litterfall and potential nutrient return in cocoa agroforestry systems under organic and conventional management, Ghana. Heliyon, 7(10), Article e08051. https://doi.org/10.1016/j.heliyon.2021.e08051

Litterfall is a critical link between vegetation and soils by which nutrients are returned to the soils, thus the amount and pattern of litterfall regulates nutrient cycling, soil fertility and primary productivity for most terrestrial ecosystems. We... Read More about Temporal changes in litterfall and potential nutrient return in cocoa agroforestry systems under organic and conventional management, Ghana.

Long‐term zero‐tillage enhances the protection of soil carbon in tropical agriculture (2021)
Journal Article
Cooper, H. V., Sjögersten, S., Lark, R. M., Girkin, N. T., Vane, C. H., Calonego, J. C., …Mooney, S. J. (2021). Long‐term zero‐tillage enhances the protection of soil carbon in tropical agriculture. European Journal of Soil Science, 72(6), 2477-2492. https://doi.org/10.1111/ejss.13111

Contrasting tillage strategies not only affect the stability and formation of soil aggregates but also modify the concentration and thermostability of soil organic matter associated with soil aggregates. Understanding the thermostability and carbon r... Read More about Long‐term zero‐tillage enhances the protection of soil carbon in tropical agriculture.

To till or not to till in a temperate ecosystem? Implications for climate change mitigation (2021)
Journal Article
Cooper, H. V., Sjögersten, S., Lark, R. M., & Mooney, S. J. (2021). To till or not to till in a temperate ecosystem? Implications for climate change mitigation. Environmental Research Letters, 16(5), Article 054022. https://doi.org/10.1088/1748-9326/abe74e

The management of agricultural soils affect the composition and scale of their greenhouse gas (GHG) emissions. There is conflicting evidence on the effect of zero-tillage on carbon storage and GHG emissions. Here we assess the effects of zero-tillage... Read More about To till or not to till in a temperate ecosystem? Implications for climate change mitigation.

Expert assessment of future vulnerability of the global peatland carbon sink (2020)
Journal Article
Loisel, J., Gallego-Sala, A. V., Amesbury, M. J., Magnan, G., Anshari, G., Beilman, D. W., …Wu, J. (2020). Expert assessment of future vulnerability of the global peatland carbon sink. Nature Climate Change, https://doi.org/10.1038/s41558-020-00944-0

© 2020, The Author(s), under exclusive licence to Springer Nature Limited. The carbon balance of peatlands is predicted to shift from a sink to a source this century. However, peatland ecosystems are still omitted from the main Earth system models th... Read More about Expert assessment of future vulnerability of the global peatland carbon sink.

Decomposition and nutrient mineralisation of leaf litter in smallholder cocoa agroforests: a comparison of organic and conventional farms in Ghana (2020)
Journal Article
Asigbaase, M., Dawoe, E., Sjogersten, S., & Lomax, B. H. (2020). Decomposition and nutrient mineralisation of leaf litter in smallholder cocoa agroforests: a comparison of organic and conventional farms in Ghana. Journal of Soils and Sediments, https://doi.org/10.1007/s11368-020-02844-4

© 2020, The Author(s). Purpose: Although litter decomposition and nutrient release patterns have been studied in cocoa agroforestry systems in general, studies focusing on organic and conventional cocoa systems are lacking which is critical as organi... Read More about Decomposition and nutrient mineralisation of leaf litter in smallholder cocoa agroforests: a comparison of organic and conventional farms in Ghana.

Is Intercropping an Environmentally-Wise Alternative to Established Oil Palm Monoculture in Tropical Peatlands? (2020)
Journal Article
Dhandapani, S., Girkin, N. T., Evers, S., Ritz, K., & Sjögersten, S. (2020). Is Intercropping an Environmentally-Wise Alternative to Established Oil Palm Monoculture in Tropical Peatlands?. Frontiers in Forests and Global Change, 3, Article 70. https://doi.org/10.3389/ffgc.2020.00070

Tropical peatlands in Southeast Asia are important ecosystems that play a crucial role in global biogeochemical cycles, with a potential for strong climate feedback loops. The degradation of tropical peatlands due to the expansion of oil palm plantat... Read More about Is Intercropping an Environmentally-Wise Alternative to Established Oil Palm Monoculture in Tropical Peatlands?.

Peat Properties, Dominant Vegetation Type and Microbial Community Structure in a Tropical Peatland (2020)
Journal Article
Girkin, N. T., Lopes dos Santos, R. A., Vane, C. H., Ostle, N., Turner, B. L., & Sjögersten, S. (2020). Peat Properties, Dominant Vegetation Type and Microbial Community Structure in a Tropical Peatland. Wetlands, 40, 1367–1377. https://doi.org/10.1007/s13157-020-01287-4

Tropical peatlands are an important carbon store and source of greenhouse gases, but the microbial component, particularly community structure, remains poorly understood. While microbial communities vary between tropical peatland land uses, and with... Read More about Peat Properties, Dominant Vegetation Type and Microbial Community Structure in a Tropical Peatland.

Root oxygen mitigates methane fluxes in tropical peatlands (2020)
Journal Article
Girkin, N., Vane, C. H., Turner, B., Ostle, N., & Sjögersten, S. (2020). Root oxygen mitigates methane fluxes in tropical peatlands. Environmental Research Letters, 15(6), Article 064013. https://doi.org/10.1088/1748-9326/ab8495

© 2020 The Author(s). Published by IOP Publishing Ltd. Tropical peatlands are a globally important source of methane, a potent greenhouse gas. Vegetation is critical in regulating fluxes, providing a conduit for emissions and regular carbon inputs. H... Read More about Root oxygen mitigates methane fluxes in tropical peatlands.

Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat (2019)
Journal Article
Girkin, N. T., Dhandapani, S., Evers, S., Ostle, N., Turner, B. L., & Sjӧgersten, S. (2020). Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat. Biogeochemistry, 147(1), 87-97. https://doi.org/10.1007/s10533-019-00632-y

Tropical peatlands are a significant carbon store and contribute to global carbon dioxide (CO2) and methane (CH4) emissions. Tropical peatlands are threatened by both land use and climate change, including the alteration of regional precipitation pat... Read More about Interactions between labile carbon, temperature and land use regulate carbon dioxide and methane production in tropical peat.

Methane emissions from tree stems in neotropical peatlands (2019)
Journal Article
Sjögersten, S., Siegenthaler, A., Lopez, O. R., Aplin, P., Turner, B., & Gauci, V. (2020). Methane emissions from tree stems in neotropical peatlands. New Phytologist, 225(2), 769-781. https://doi.org/10.1111/nph.16178

Neotropical peatlands emit large amounts of methane (CH4) from the soil surface, but fluxes from tree stems in these ecosystems are unknown. In this study we investigated CH4 emissions from five tree species in two forest types common to neotropical... Read More about Methane emissions from tree stems in neotropical peatlands.

Evaluation of vegetation communities, water table, and peat composition as drivers of greenhouse gas emissions in lowland tropical peatlands (2019)
Journal Article
Hoyos-Santillan, J., Lomax, B. H., Large, D., Turner, B. L., Lopez, O. R., Boom, A., …Sjögersten, S. (2019). Evaluation of vegetation communities, water table, and peat composition as drivers of greenhouse gas emissions in lowland tropical peatlands. Science of the Total Environment, 688, 1193-1204. https://doi.org/10.1016/j.scitotenv.2019.06.366

© 2019 Elsevier B.V. Tropical peatlands are globally important source of greenhouse gases to the atmosphere, but data on carbon fluxes from these ecosystems is limited due to the logistical challenges of measuring gas fluxes in these ecosystems. Prop... Read More about Evaluation of vegetation communities, water table, and peat composition as drivers of greenhouse gas emissions in lowland tropical peatlands.

From peat swamp forest to oil palm plantations: The stability of tropical peatland carbon (2019)
Journal Article
Cooper, H. V., Vane, C. H., Evers, S., Aplin, P., Girkin, N. T., & Sjögersten, S. (2019). From peat swamp forest to oil palm plantations: The stability of tropical peatland carbon. Geoderma, 342, 109-117. https://doi.org/10.1016/j.geoderma.2019.02.021

Accurate assessment of tropical peatland carbon dynamics is important to (a) determine the size of the active carbon pool, (b) estimate the scale of transfers of peat-derived greenhouse gases (GHGs) to the atmosphere resulting from land use change, a... Read More about From peat swamp forest to oil palm plantations: The stability of tropical peatland carbon.

Composition and concentration of root exudate analogues regulate greenhouse gas fluxes from tropical peat (2018)
Journal Article
Girkin, N., Turner, B., Ostle, N., & Sjögersten, S. (2018). Composition and concentration of root exudate analogues regulate greenhouse gas fluxes from tropical peat. Soil Biology and Biochemistry, 127, 280-285. https://doi.org/10.1016/j.soilbio.2018.09.033

Tropical peatlands are a significant carbon store and source of carbon dioxide (CO2) and methane (CH4) to the atmosphere. Plants can contribute to these gas emissions through the release of root exudates, including sugars and organic acids amongst ot... Read More about Composition and concentration of root exudate analogues regulate greenhouse gas fluxes from tropical peat.

Root-derived CO2 flux from a tropical peatland (2018)
Journal Article
Girkin, N., Turner, B., Ostle, N., & Sjögersten, S. (2018). Root-derived CO2 flux from a tropical peatland. Wetlands Ecology and Management, 26(5), 985-991. https://doi.org/10.1007/s11273-018-9617-8

Tropical peatlands release significant quantities of greenhouse gases to the atmosphere, yet the relative contributions of heterotrophic and autotrophic respiration to net CO2 fluxes remains sparsely quantified. We used a combination of in situ trenc... Read More about Root-derived CO2 flux from a tropical peatland.