All Outputs (30)

Investigating the role of hydrological connectivity on the processing of organic carbon in tropical aquatic ecosystems (2024)
Journal Article
Pereira, R., Panizzo, V. N., Bischoff, J., McGowan, S., Lacey, J., Moorhouse, H., …Fazry, S. (2024). Investigating the role of hydrological connectivity on the processing of organic carbon in tropical aquatic ecosystems. Frontiers in Earth Science, 11, Article 1250889. https://doi.org/10.3389/feart.2023.1250889

Inland waters are highways of carbon and nutrient flows between the land and ocean. Aquatic environments integrate multiple sources and processes over space and time that influence ecosystem functionality. The complexity of these systems and their mu... Read More about Investigating the role of hydrological connectivity on the processing of organic carbon in tropical aquatic ecosystems.

Identifying the controls on nitrate and metabolic state within the Red River delta (Vietnam) with the use of stable isotopes (2023)
Journal Article
Smith, A. C., Leng, M. J., McGowan, S., Panizzo, V. N., Ngo, T. T. T., Luu, T. N. M., …Trinh, A. D. (2024). Identifying the controls on nitrate and metabolic state within the Red River delta (Vietnam) with the use of stable isotopes. Journal of Hydrology, 628, Article 130467. https://doi.org/10.1016/j.jhydrol.2023.130467

In many places around the world, anthropogenic activities have resulted in nitrate (NO3−) pollution and changes in the metabolic state of aquatic ecosystems. Here we combined stable isotope and physico-chemical monitoring to assess the sources of NO3... Read More about Identifying the controls on nitrate and metabolic state within the Red River delta (Vietnam) with the use of stable isotopes.

Using lake sediments to assess the long-term impacts of anthropogenic activity in tropical river deltas (2023)
Journal Article
Walton, R. E., Moorhouse, H. L., Roberts, L. R., Salgado, J., Ladd, C. J., Do, N. T., …Henderson, A. C. (2023). Using lake sediments to assess the long-term impacts of anthropogenic activity in tropical river deltas. Anthropocene Review, https://doi.org/10.1177/20530196231204334

Tropical river deltas, and the social-ecological systems they sustain, are changing rapidly due to anthropogenic activity and climatic change. Baseline data to inform sustainable management options for resilient deltas is urgently needed and palaeoli... Read More about Using lake sediments to assess the long-term impacts of anthropogenic activity in tropical river deltas.

Prehistoric population expansion in Central Asia promoted by the Altai Holocene Climatic Optimum (2023)
Journal Article
Xiang, L., Huang, X., Sun, M., Panizzo, V. N., Huang, C., Zheng, M., …Chen, F. (2023). Prehistoric population expansion in Central Asia promoted by the Altai Holocene Climatic Optimum. Nature Communications, 14(1), Article 3102. https://doi.org/10.1038/s41467-023-38828-4

How climate change in the middle to late Holocene has influenced the early human migrations in Central Asian Steppe remains poorly understood. To address this issue, we reconstructed a multiproxy-based Holocene climate history from the sediments of K... Read More about Prehistoric population expansion in Central Asia promoted by the Altai Holocene Climatic Optimum.

Urbanization and seasonality strengthens the CO 2 capacity of the Red River Delta, Vietnam (2022)
Journal Article
Salgado, J., Duc, T. A., Nga, D. T., Panizzo, V. N., Bass, A. M., Zheng, Y., …McGowan, S. (2022). Urbanization and seasonality strengthens the CO 2 capacity of the Red River Delta, Vietnam. Environmental Research Letters, 17(10), Article 104052. https://doi.org/10.1088/1748-9326/ac9705

Tropical rivers are dynamic CO2 sources. Regional patterns in the partial pressure of CO2 (pCO2) and relationships with other a/biotic factors in densely populated and rapidly developing river delta regions of Southeast Asia are still poorly constrai... Read More about Urbanization and seasonality strengthens the CO 2 capacity of the Red River Delta, Vietnam.

In flux: Annual transport and deposition of suspended heavy metals and trace elements in the urbanised, tropical Red River Delta, Vietnam (2022)
Journal Article
Roberts, L. R., Do, N. T., Panizzo, V. N., Taylor, S., Watts, M., Hamilton, E., …Salgado, J. (2022). In flux: Annual transport and deposition of suspended heavy metals and trace elements in the urbanised, tropical Red River Delta, Vietnam. Water Research, 224, Article 119053. https://doi.org/10.1016/j.watres.2022.119053

Due to the depositional environment, river deltas are said to act as filters and sinks for pollutants. However, many deltas are also densely populated and rapidly urbanizing, creating new and increased sources of pollutants. These sources pose the ri... Read More about In flux: Annual transport and deposition of suspended heavy metals and trace elements in the urbanised, tropical Red River Delta, Vietnam.

Tropical Asian mega-delta ponds: Important and threatened socio-ecological systems (2021)
Journal Article
Moorhouse, H. L., Roberts, L. R., McGowan, S., Panizzo, V. N., Barker, P., Salehin, M., …Large, A. R. G. (2021). Tropical Asian mega-delta ponds: Important and threatened socio-ecological systems. Geo: Geography and Environment, 8(2), Article e00103. https://doi.org/10.1002/geo2.103

This paper uses multimedia to showcase the narratives and lived experiences of those who live and work in tropical Asian mega-deltas, and as such is the first journal article of its kind in the field of Regional Geography. Using videos, photography a... Read More about Tropical Asian mega-delta ponds: Important and threatened socio-ecological systems.

Changing nutrient cycling in Lake Baikal, the world’s oldest lake (2020)
Journal Article
Swann, G. E. A., Panizzo, V. N., Piccolroaz, S., Pashley, V., Horstwood, M., Roberts, S., …Mackay, A. W. (2020). Changing nutrient cycling in Lake Baikal, the world’s oldest lake. Proceedings of the National Academy of Sciences, 117(44), 27211-27217. https://doi.org/10.1073/pnas.2013181117

Copyright © 2020 the Author(s). Published by PNAS. Lake Baikal, lying in a rift zone in southeastern Siberia, is the world's oldest, deepest, and most voluminous lake that began to form over 30 million years ago. Cited as the "most outstanding exampl... Read More about Changing nutrient cycling in Lake Baikal, the world’s oldest lake.

Using stable isotopes to estimate young water fractions in a heavily regulated, tropical lowland river basin (2020)
Journal Article
Trinh, A. D., Do, T. N., Panizzo, V. N., McGowan, S., & Leng, M. J. (2020). Using stable isotopes to estimate young water fractions in a heavily regulated, tropical lowland river basin. Hydrological Processes, 34(22), 4239-4250. https://doi.org/10.1002/hyp.13878

© 2020 John Wiley & Sons Ltd The young water fraction of streamflow (Fyw), an important hydrological variable, has been calculated for the first time, for a monsoon-fed coastal catchment in northern Vietnam. Oxygen stable isotopes (δ18O) from six r... Read More about Using stable isotopes to estimate young water fractions in a heavily regulated, tropical lowland river basin.

Diatoms in a sediment core from a flood pulse wetland in Malaysia record strong responses to human impacts and hydro‐climate over the past 150 years (2020)
Journal Article
Briddon, C. L., McGowan, S., Metcalfe, S. E., Panizzo, V., Lacey, J., Engels, S., …Idris, M. (2020). Diatoms in a sediment core from a flood pulse wetland in Malaysia record strong responses to human impacts and hydro‐climate over the past 150 years. Geo: Geography and Environment, 7(1), Article e00090. https://doi.org/10.1002/geo2.90

Rapid development and climate change in southeast Asia is placing unprecedented pressures on freshwater ecosystems, but long term records of the ecological consequences are rare. Here we examine one basin of Tasik Chini (Malaysia), a UNESCO?designate... Read More about Diatoms in a sediment core from a flood pulse wetland in Malaysia record strong responses to human impacts and hydro‐climate over the past 150 years.

Stable isotopes as an effective tool for N nutrient source identification in a heavily urbanized and agriculturally intensive tropical lowland basin (2020)
Journal Article
Luu, T. N. M., Do, T. N., Matiatos, I., Panizzo, V. N., & Trinh, A. D. (2020). Stable isotopes as an effective tool for N nutrient source identification in a heavily urbanized and agriculturally intensive tropical lowland basin. Biogeochemistry, 149, 17-35. https://doi.org/10.1007/s10533-020-00663-w

© 2020, Springer Nature Switzerland AG. We present the application of dual stable isotope analyses of NO3 (δ15N-NO3 and δ18O-NO3) to provide a comprehensive assessment of the provenance, partitioning, and conversion of nitrate across the Day River Ba... Read More about Stable isotopes as an effective tool for N nutrient source identification in a heavily urbanized and agriculturally intensive tropical lowland basin.

Mercury loading within the Selenga River basin and Lake Baikal, Siberia (2019)
Journal Article
Roberts, S., Adams, J. K., Mackay, A. W., Swann, G. E. A., McGowan, S., Rose, N. L., …Shchetnikov, A. A. (2020). Mercury loading within the Selenga River basin and Lake Baikal, Siberia. Environmental Pollution, 259, Article 113814. https://doi.org/10.1016/j.envpol.2019.113814

Mercury (Hg) loading in Lake Baikal, a UNESCO world heritage site, is growing and poses a serious health concern to the lake’s ecosystem due to the ability of Hg to transform into a toxic form, known as methylmercury (MeHg). Monitoring of Hg into Lak... Read More about Mercury loading within the Selenga River basin and Lake Baikal, Siberia.

Transitions in diatom assemblages and pigments through dry and wet season conditions in the Red River, Hanoi (Vietnam) (2019)
Journal Article
Thi, T. D., Nguyen, H. Y., Le, T. P. Q., Kien, N. T., Tran, T. T. H., Le, . N. D., …Mcgowan, S. (2019). Transitions in diatom assemblages and pigments through dry and wet season conditions in the Red River, Hanoi (Vietnam). Plant Ecology and Evolution, 152(2), 163-177. https://doi.org/10.5091/plecevo.2019.1627

Background and aims – Biomonitoring is an important tool for assessing river water quality, but is not routinely applied in tropical rivers. Marked hydrological changes can occur between wet and dry season conditions in the tropics. Thus, a prerequis... Read More about Transitions in diatom assemblages and pigments through dry and wet season conditions in the Red River, Hanoi (Vietnam).

Diatom evidence of 20th century ecosystem change in Lake Baikal, Siberia (2018)
Journal Article
Roberts, S., Swann, G., McGowan, S., Panizzo, V., Vologina, E., Sturm, M., & Mackay, A. (2018). Diatom evidence of 20th century ecosystem change in Lake Baikal, Siberia. PLoS ONE, 13(12), Article e020876. https://doi.org/10.1371/journal.pone.0208765

Lake Baikal has been experiencing limnological changes from recent atmospheric warming since the 1950s, with rising lake water temperatures, reduced ice cover duration and reduced lake surface-water mixing due to stronger thermal stratification. This... Read More about Diatom evidence of 20th century ecosystem change in Lake Baikal, Siberia.

The stable isotope composition of organic and inorganic fossils in lake sediment records: current understanding, challenges, and future directions (2018)
Journal Article
van Hardenbroek, M., Chakraborty, A., Davies, K., Harding, P., Heiri, O., Henderson, A., …Wooller, M. (2018). The stable isotope composition of organic and inorganic fossils in lake sediment records: current understanding, challenges, and future directions. Quaternary Science Reviews, 196, 154-176. https://doi.org/10.1016/j.quascirev.2018.08.003

This paper provides an overview of stable isotope analysis (H, C, N, O, Si) of the macro and microscopic remains from aquatic organisms found in lake sediment records and their application in (palaeo)environmental science. Aquatic organisms, includin... Read More about The stable isotope composition of organic and inorganic fossils in lake sediment records: current understanding, challenges, and future directions.

Modelling silicon supply during the Last Interglacial (MIS 5e) at Lake Baikal (2018)
Journal Article
Panizzo, V., Swann, G., Mackay, A., Pashley, V., & Horstwood, M. (2018). Modelling silicon supply during the Last Interglacial (MIS 5e) at Lake Baikal. Quaternary Science Reviews, 190, https://doi.org/10.1016/j.quascirev.2018.04.006

Limnological reconstructions of primary productivity have demonstrated its response over Quaternary timescales to drivers such as climate change, landscape evolution and lake ontogeny. In particular, sediments from Lake Baikal, Siberia, provide a val... Read More about Modelling silicon supply during the Last Interglacial (MIS 5e) at Lake Baikal.

Lake Baikal isotope records of Holocene Central Asian precipitation (2018)
Journal Article
Swann, G. E., Mackay, A. W., Vologina, E., Jones, M. D., Panizzo, V., Leng, M. J., …Sturm, M. (2018). Lake Baikal isotope records of Holocene Central Asian precipitation. Quaternary Science Reviews, 189, https://doi.org/10.1016/j.quascirev.2018.04.013

Climate models currently provide conflicting predictions of future climate change across Central Asia. With concern over the potential for a change in water availability to impact communities and ecosystems across the region, an understanding of hist... Read More about Lake Baikal isotope records of Holocene Central Asian precipitation.

Spatial differences in dissolved silicon utilisation in Lake Baikal, Siberia: examining the impact of high diatom biomass events and eutrophication (2018)
Journal Article
Panizzo, V., Roberts, S., Swann, G. E., McGowan, S., Mackay, A. W., Vologina, E., …Horstwood, M. S. (2018). Spatial differences in dissolved silicon utilisation in Lake Baikal, Siberia: examining the impact of high diatom biomass events and eutrophication. Limnology and Oceanography, 63(4), 1562-1578. https://doi.org/10.1002/lno.10792

Recent research has highlighted how Lake Baikal, Siberia, has responded to the direct and indirect effects of climate change (e.g., ice-cover duration), nutrient loading, and pollution, manifesting as changes in phytoplankton/zooplankton populations,... Read More about Spatial differences in dissolved silicon utilisation in Lake Baikal, Siberia: examining the impact of high diatom biomass events and eutrophication.

A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements (2018)
Journal Article
Sutton, J. N., André, L., Cardinal, D., Conley, D. J., de Souza, G. F., Dean, J. R., …Swann, G. E. (2018). A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements. Frontiers in Earth Science, 5, Article 112. https://doi.org/10.3389/feart.2017.00112

Silicon (Si) is the second most abundant element in the Earth’s crust and is an important nutrient in the ocean. The global Si cycle plays a critical role in regulating primary productivity and carbon cycling on the continents and in the oceans. Deve... Read More about A review of the stable isotope bio-geochemistry of the global silicon cycle and its associated trace elements.

Constraining modern day silicon cycling in Lake Baikal (2017)
Journal Article
Panizzo, V., Swann, G. E., Mackay, A. W., Vologina, E., Alleman, L., Andre, L., …Horstwood, M. S. (in press). Constraining modern day silicon cycling in Lake Baikal. Global Biogeochemical Cycles, 31(3), https://doi.org/10.1002/2016GB005518

Constraining the continental silicon cycle is a key requirement in attempts to understand both nutrient fluxes to the ocean and linkages between silicon and carbon cycling over different timescales. Silicon isotope data of dissolved silica (?30SiDSi)... Read More about Constraining modern day silicon cycling in Lake Baikal.