All Outputs (48)

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., Page, S. E., Large, D. J., Evans, C. D., Tansey, K. J., Evers, S., & 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., Sowter, A., & 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.

Potential of APSIS-InSAR for measuring surface oscillations of tropical peatlands (2024)
Journal Article
Ledger, M. J., Sowter, A., Morrison, K., Evans, C. D., Large, D. J., Athab, A., Gee, D., Brown, C., & Sjögersten, S. (2024). Potential of APSIS-InSAR for measuring surface oscillations of tropical peatlands. PLoS ONE, 19(2), Article e0298939. https://doi.org/10.1371/journal.pone.0298939

Tropical peatland across Southeast Asia is drained extensively for production of pulpwood, palm oil and other food crops. Associated increases in peat decomposition have led to widespread subsidence, deterioration of peat condition and CO2 emissions.... Read More about Potential of APSIS-InSAR for measuring surface oscillations of tropical peatlands.

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.

Simulating carbon accumulation and loss in the central Congo peatlands (2023)
Journal Article
Young, D. M., Baird, A. J., Morris, P. J., Dargie, G. C., Mampouya Wenina, Y. E., Mbemba, M., Boom, A., Cook, P., Betts, R., Burke, E., Bocko, Y. E., Chadburn, S., Crabtree, D. E., Crezee, B., Ewango, C. E. N., Garcin, Y., Georgiou, S., Girkin, N. T., Gulliver, P., Hawthorne, D., …Lewis, S. L. (2023). Simulating carbon accumulation and loss in the central Congo peatlands. Global Change Biology, 29(23), 6812-6827. https://doi.org/10.1111/gcb.16966

Peatlands of the central Congo Basin have accumulated carbon over millennia. They currently store some 29 billion tonnes of carbon in peat. However, our understanding of the controls on peat carbon accumulation and loss and the vulnerability of this... Read More about Simulating carbon accumulation and loss in the central Congo peatlands.

Spectral Characteristics of Beached Sargassum in Response to Drying and Decay over Time (2023)
Journal Article
Chandler, C. J., Ávila-Mosqueda, S. V., Salas-Acosta, E. R., Magaña-Gallegos, E., Escalante Mancera, E., Gómez Reali, M. A., de la Barreda-Bautista, B., Boyd, D. S., Metcalfe, S. E., Sjogersten, S., van Tussenbroek, B., Silva, R., & Foody, G. M. (2023). Spectral Characteristics of Beached Sargassum in Response to Drying and Decay over Time. Remote Sensing, 15(17), Article 4336. https://doi.org/10.3390/rs15174336

The bloom of pelagic Sargassum in the Atlantic Ocean has become increasingly problematic, especially when the algae have beached. A build-up of decaying beached material has damaging effects on coastal ecosystems and tourism industries. While remote... Read More about Spectral Characteristics of Beached Sargassum in Response to Drying and Decay over Time.

Tropical peat surface oscillations are a function of peat condition at North Selangor peat swamp forest, Malaysia (2023)
Journal Article
Ledger, M. J., Evans, C. D., Large, D. J., Evers, S., Brown, C., Jovani-Sancho, A. J., Callaghan, N., Vane, C. H., Marshall, C., Baskaran, A., Gan, J. Y., Sowter, A., Morrison, K., & Sjögersten, S. (2023). Tropical peat surface oscillations are a function of peat condition at North Selangor peat swamp forest, Malaysia. Frontiers in Environmental Science, 11, Article 1182100. https://doi.org/10.3389/fenvs.2023.1182100

Tropical peatland condition across southeast Asia is deteriorating as a result of conversion to agriculture and urban zones. Conversion begins by lowering the water table, which leads to peat decomposition, subsidence and increased risk of large-scal... Read More about Tropical peat surface oscillations are a function of peat condition at North Selangor peat swamp forest, Malaysia.

Mapping Water Levels across a Region of the Cuvette Centrale Peatland Complex (2023)
Journal Article
Georgiou, S., Mitchard, E. T. A., Crezee, B., Dargie, G. C., Young, D. M., Jovani-Sancho, A. J., Kitambo, B., Papa, F., Bocko, Y. E., Bola, P., Crabtree, D. E., Emba, O. B., Ewango, C. E. N., Girkin, N. T., Ifo, S. A., Kanyama, J. T., Mampouya, Y. E. W., Mbemba, M., Ndjango, J.-B. N., Palmer, P. I., …Lewis, S. L. (2023). Mapping Water Levels across a Region of the Cuvette Centrale Peatland Complex. Remote Sensing, 15(12), Article 3099. https://doi.org/10.3390/rs15123099

Inundation dynamics are the primary control on greenhouse gas emissions from peatlands. Situated in the central Congo Basin, the Cuvette Centrale is the largest tropical peatland complex. However, our knowledge of the spatial and temporal variations... Read More about Mapping Water Levels across a Region of the Cuvette Centrale Peatland Complex.

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., López-Ramírez, P., Magaldi, A., Ressl, R., Perera-Valderrama, S., Caballero-Aragon, H., Siordia, O. S., Couldridge, J., Gray, P., Silva, R., Van Tussenbroek, B. I., Escalante‐Mancera, E., & 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.

Detecting tropical peatland degradation: Combining remote sensing and organic geochemistry (2023)
Journal Article
Brown, C., Boyd, D. S., Sjögersten, S., & Vane, C. H. (2023). Detecting tropical peatland degradation: Combining remote sensing and organic geochemistry. PLoS ONE, 18(3), Article e0280187. https://doi.org/10.1371/journal.pone.0280187

Tropical peatlands are important carbon stores that are vulnerable to drainage and conversion to agriculture. Protection and restoration of peatlands are increasingly recognised as key nature based solutions that can be implemented as part of climate... Read More about Detecting tropical peatland degradation: Combining remote sensing and organic geochemistry.

Environmental and farming practice controls of productivity of Cyrtosperma merkusii (giant swamp taro), an underutilised wetland and potential paludiculture crop (2023)
Journal Article
Mendiondo, G., Moko, E. M., Sparkes, D. L., Rahardiyan, D., Welham, S. J. M., O'Reilly, P., Wilson, P., Thomas, M. L., Ngangi, J., & Sjögersten, S. (2023). Environmental and farming practice controls of productivity of Cyrtosperma merkusii (giant swamp taro), an underutilised wetland and potential paludiculture crop. Food and Energy Security, 13(1), Article e490. https://doi.org/10.1002/fes3.490

Growing recognition of the potential vulnerabilities of major crop systems has spurred a growing interest in the potential of alternative crops which may be resilient to climate change and also help mitigate its effects. In Indonesia, such issues are... Read More about Environmental and farming practice controls of productivity of Cyrtosperma merkusii (giant swamp taro), an underutilised wetland and potential paludiculture crop.

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., Biddulph, G. E., Crezee, B., Bocko, Y. E., Ifo, S. A., Mampouya Wenina, Y. E., Mbemba, M., Ewango, C. E. N., Emba, O., Bola, P., Kanyama Tabu, J., Tyrrell, G., Young, D. M., Gassier, G., Girkin, N. T., …Lewis, S. L. (2022). Hydroclimatic vulnerability of peat carbon in the central Congo Basin. Nature, 612(7939), 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 peat1,2. Little is known about the vulnerability of these carbon stocks. Here we investigate this vulnerability usingpeat cores from a large inte... Read More about Hydroclimatic vulnerability of peat carbon in the central Congo Basin.

Immediate environmental impacts of transformation of an oil palm intercropping to a monocropping system in a tropical peatland (2022)
Journal Article
Dhandapani, S., Girkin, N. T., Evers, S., Ritz, K., & Sjögersten, S. (2022). Immediate environmental impacts of transformation of an oil palm intercropping to a monocropping system in a tropical peatland. Mires and Peat, 28, 1-17. https://doi.org/10.19189/MaP.2021.GDC.StA.2290

The expansion of oil palm plantations is one of the greatest threats to carbon-rich tropical peatlands in Southeast Asia. More than half of the oil palm plantations on tropical peatlands of Peninsular Malaysia are smallholder-based, which typically f... Read More about Immediate environmental impacts of transformation of an oil palm intercropping to a monocropping system in a tropical peatland.

Towards a Monitoring Approach for Understanding Permafrost Degradation and Linked Subsidence in Arctic Peatlands (2022)
Journal Article
de la Barreda-Bautista, B., Boyd, D. S., Ledger, M., Siewert, M. B., Chandler, C., Bradley, A. V., Gee, D., Large, D. J., Olofsson, J., Sowter, A., & Sjögersten, S. (2022). Towards a Monitoring Approach for Understanding Permafrost Degradation and Linked Subsidence in Arctic Peatlands. Remote Sensing, 14(3), Article 444. https://doi.org/10.3390/rs14030444

Permafrost thaw resulting from climate warming is threatening to release carbon from high latitude peatlands. The aim of this research was to determine subsidence rates linked to permafrost thaw in sub-Arctic peatlands in Sweden using historical orth... Read More about Towards a Monitoring Approach for Understanding Permafrost Degradation and Linked Subsidence in Arctic Peatlands.

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., Rosolem, 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.

A Novel Low-Cost, High-Resolution Camera System for Measuring Peat Subsidence and Water Table Dynamics (2021)
Journal Article
Evans, C. D., Callaghan, N., Jaya, A., Grinham, A., Sjogersten, S., Page, S. E., Harrison, M., Kusin, K., Kho, L. K., Ledger, M., Evers, S., Mitchell, Z., Williamson, J., Radbourne, A., & Jovani-Sancho, A. J. (2021). A Novel Low-Cost, High-Resolution Camera System for Measuring Peat Subsidence and Water Table Dynamics. Frontiers in Environmental Science, 9, Article 630752. https://doi.org/10.3389/fenvs.2021.630752

Peatlands are highly dynamic systems, able to accumulate carbon over millennia under natural conditions, but susceptible to rapid subsidence and carbon loss when drained. Short-term, seasonal and long-term peat surface elevation changes are closely l... Read More about A Novel Low-Cost, High-Resolution Camera System for Measuring Peat Subsidence and Water Table Dynamics.

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.

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.