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Scientific Publications

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Highlights

  • Maavara, T., Yuan, Z., Johnson, A.M., Zhang, S., Aho, K.S., Brinkerhoff, C.B., Logozzo, L.A., Raymond, P. River metabolism in the contiguous United States: A West of extremes. (2025). Science 390 (6773): 622-627.

  • Battin, T., Lauerwald, R., Bernhardt, E., Bertuzzo, E., Gómez Gener, L., Hall, R., Hotchkiss, E., Maavara, T., Pavelsky, T., Ran, L., Raymond, P., Rosentreter, J.A., Regnier, P. (2023). River ecosystem metabolism and carbon biogeochemistry in a changing world. Nature 613: 449-459.

  • Maavara, T., Brinkerhoff, C., Hosen, J., Aho, K., Logozzo, L., Saiers, J., Stubbins, A., Raymond, P.A. (2023). Watershed DOC uptake occurs mostly in lakes in summer and in rivers in winter. Limnology & Oceanography 68 (3): 735-751.

  • Maavara, T., Chen, Q., Van Meter, K., Brown, L., Zhang, J., Ni, J., Zarfl, C. (2020). River dam impacts on biogeochemistry. Nature Reviews Earth & Environment 1: 103-116.

  • Maavara, T., Lauerwald, R., Laruelle, G.G., Akbarzadeh, Z., Bouskill, N.J., Van Cappellen, P., Regnier, P. (2019). Nitrous oxide emissions from inland waters: Are IPCC estimates too high? Global Change Biology 25 (2): 473-488.

A person dressed in an orange jacket and black pants, carrying some items in a plastic bag, walking across rocky terrain with a river, set against a backdrop of towering snow-capped mountains and a blue sky.

Complete list

  • Maavara, T., Yuan, Z., Johnson, A.M., Zhang, S., Aho, K.S., Brinkerhoff, C.B., Logozzo, L.A., Raymond, P. River metabolism in the contiguous United States: A West of extremes. (2025). Science 390 (6773): 622-627.

  • Liu, M., Zhou, C., Zhang, Q., Bianchi, T., Mason, R., Maavara, T., Wang, J., Wang, X., Raymond, R. Fish trawling and climate-related perturbations are remobilizing the largest marine mercury sinks. (2025). Nature Sustainability 8 (11): 1280-1293.

  • South, J., Stubbington, O., Kaiser-Reichel, A., Bossman, E., Singh, N., Methembu, M., Voysey, M. D., Maavara, T., O’Brien, G., Masenya, K., Khosa, D. Rapid establishment and impact assessment of Redclaw crayfish (Cherax quadricarinatus) invasion in the Kruger National Park, South Africa. (2025). Aquatic Conservation: Marine and Freshwater Ecosystems 35: e70184.

  • Alcott, L.J., Maavara, T. (2025). GC Insights: The Anthro-Pokécene:Environmental impacts echoed in the Pokémon world. Geoscience Communication 8: 47-50.

  • Brown, L.E., Maavara, T., Chen, X., Zhang, J., Klaar, M., Orah Moshe, F., Ben-Zur, E., Stein, S., Grayson, R., Carter, L., Levintal, E., Gal, G., Ziv, P., Tarkowski, F., Pathak, D., Khamis, K., Barquín, J., Philamore, H., Gradilla Hernández, M.S., Arnon, S. (2024). Integrating sensor data and machine learning to advance the science and management of river carbon emissions. Critical Reviews in Environmental Science & Technology 1-24: DOI: 10.1080/10643389.2024.2429912.

  • Liu, D., Chen, Q., Maavara, T., Zhang, J., Chen, Y. (2024). Nitrogen cycling in reservoir drawdown areas and the impacts on water quality. Global Biogeochemical Cycles 38: e2024GB008136.

  • Rosentreter, J., Alcott, L.J., Maavara, T., Sun, X., Zhou, Y. Planavsky, N., Raymond, P. (2024).  Revisiting the global methane cycle through expert opinion. Earth’s Future 12: e2023EF004234.

  • Tian, H., Pan, N., Thompson, R.L., Canadell, J.G., Suntharalingam, P., Regnier, P., Davidson, E.A., Prather, M., Ciais, P., Muntean, M., Pan, P., Winiwarter, W., Zaehle, S., Zhou, F., Jackson, R.B., Bange, H.W., Berthet, S., Bian, Z., Bianchi, D., Bouwman, A.F., Buitenhuis, E.T., Dutton, G., Hu, M., Ito, A., Jain, A.K., Jeltsch-Thömmes, A., Joos, F., Kou-Giesbrecht, S., Krummel, P.B., Lan, X., Landolfi, A., Lauerwald, R., Li, Y., Lu, C., Maavara, T., Manizza, M., Millet, D.B., Mühle, J., Patra, P.K., Peters, G.P., Qin, X., Raymond, R., Resplandy, L., Rosentreter, J.A., Shi, H., Sun, Q., Tonina, D., Tubiello, F.N., van der Werf, G.R., Vuichard, N., Wang, J., Wells, K.C., Western, L.M., Wilson, C., Yang, J., Yao, Y., You, Y., Zhu, Q. (2024). Global Nitrous Oxide Budget 1980-2020. Earth System Science Data 16: 2543-2604.

  • Bouskill, N., Newcomer, M., Carroll, R., Beutler, C., Bill, M., Brown, W., Conrad, M., Dong, W., Falco, N., Maavara, T., Newman, A., Sorensen, P., Tokunaga, T., Wan, J., Wainwright, H., Zhu, Q., Brodie, E., Williams, K. H. (2024). A tale of two catchments: Causality analysis and isotope systematics reveal mountainous watershed traits that regulate the retention and release of nitrogen. JGR: Biogeosciences 129: e2023JG007532.

  • Li, Y., Tian, H., Yao, Y., Shi, H., Bian, Z., Shi, Y., Wang, S., Maavara, T., Lauerwald, R., Pan, S. (2024). Increased nitrous oxide emissions from global lakes and reservoirs since the pre-industrial era. Nature Communications 15: 942.

  • Villalobos, Y., Canadell, J. G., Keller, E. D., Briggs, P., Bukosa, B., Giltrap, D.L., Harman, I., Hilton, T.W., Kirschbaum, M.U.F., Lauerwald, R., Liang, L.L., Maavara, T., Mikaloff-Fletcher, S.E., Rayner, P.J., Resplandy, L., Rosentreter, J., Metz, E., Serrano, O., Smith, B. (2023). A comprehensive assessment of anthropogenic and natural sources and sinks of Australasia’s carbon budget. Global Biogeochemical Cycles 37 (12): e2023GB007845.

  • Aho, K., Maavara, T., Cawley, K., Raymond, P. (2023). Inland waters as nitrous oxide sinks: Observations and modeling reveal nitrous oxide undersaturation is prevalent in inland waters. Geophysical Research Letters 50: e2023GL104987.

  • Rosentreter, J., Laruelle, G.G., Bange, H.W., Bianchi, T.S., Busecke, J.J.M., Cai, W.-J., Eyre, B.D., Forbrich, I., Kwon, E.Y., Maavara, T., Moosdorf, N., Najjar, R.G., Sarma, V.V.S.S., Van Dam, B., Regnier, P. (2023). Coastal vegetation and estuaries collectively reduce global warming. Nature Climate Change 13: 578-587.

  • Maavara, T., Brinkerhoff, C., Hosen, J., Aho, K., Logozzo, L., Saiers, J., Stubbins, A., Raymond, P.A. (2023). Watershed DOC uptake occurs mostly in lakes in summer and in rivers in winter. Limnology & Oceanography 68 (3): 735-751.

  • Lauerwald, R., Allen, G. H., Deemer, B. R., Liu, S., Maavara, T., Raymond, P., Alcott, L., Bastviken, D., Hastie, A., Holgerson, M. A., Johnson, M. S., Lehner, B., Lin, P., Marzadri, A., Ran, L., Tian, H., Yang, X., Yao, Y., Regnier, P. (2023). Inland water greenhouse gas budgets for RECCAP2: 2. Regionalization and homogenization of estimates. Global Biogeochemical Cycles 37: e2022GB007658.

  • Lauerwald, R., Allen, G. H., Deemer, B. R., Liu, S., Maavara, T., Raymond, P., Alcott, L., Bastviken, D., Hastie, A., Holgerson, M. A., Johnson, M. S., Lehner, B., Lin, P., Marzadri, A., Ran, L., Tian, H., Yang, X., Yao, Y., Regnier, P. (2023). Inland water greenhouse gas budgets for RECCAP2: 1. State-of-the-art of global scale assessments. Global Biogeochemical Cycles 37: e2022GB007657.

  • Shi, W., Maavara, T., Chen, Q., Zhang, J., Ni, J., Tonina, D. (2023) Spatial patterns of diffuse greenhouse gas emissions from cascade hydropower reservoirs. Journal of Hydrology 619: 129343.

  • Battin, T., Lauerwald, R., Bernhardt, E., Bertuzzo, E., Gómez Gener, L., Hall, R., Hotchkiss, E., Maavara, T., Pavelsky, T., Ran, L., Raymond, P., Rosentreter, J.A., Regnier, P. (2023). River ecosystem metabolism and carbon biogeochemistry in a changing world. Nature 613: 449-459.

  • Liu, S., Maavara, T., Brinkerhoff, C., Raymond, P. (2022). Global controls on DOC reaction versus export in watersheds: A Damköhler number analysis. Global Biogeochemical Cycles 36: e2021GB007278.

  • Sabur, M.A., Parsons, C., Maavara, T., Van Cappellen, P. (2022). Effects of pH and dissolved silicate on phosphate mineral-water partitioning with goethite. ACS Earth and Space Chemistry 6 (1): 34-43.

  • Liu, S., Maavara, T., Yang, X., Brown, L.E. (2022). Editorial: Riverine biogeochemistry under increasing damming: Processes and impacts. Frontiers in Environmental Science 10: 863255.

  • Xu, R., Tian, H., Pan, N., Thompson, R., Canadell, J., Davidson, E., Nevison, C., Winiwarter, W., Shi, H., Pan, S., Chang, J., Ciais, P., Dangal, S., Ito, A., Jackson, R., Joos, F., Lauerwald, R., Lienert, S., Maavara, T., Millet, D., Raymond, P., Regnier, P., Tubiello, F., Vuichard, N., Wells, K., Wilson, C., Yang, J., Yao, Y., Zaehle, S., Zhou, F. (2021). Magnitude and uncertainty of nitrous oxide emissions from North America based on bottom-up and top-down approaches: informing future research and national inventories. Geophysical Research Letters 48: e2021GL095264.

  • Liu, M., Zhang, Q., Maavara, T., Liu, S., Wang, X., Raymond, P.A. (2021). Rivers as the largest source of mercury to coastal oceans worldwide. Nature Geoscience 14: 672-677.

  • Maavara, T., Logozzo, L., Stubbins, A., Aho, K., Brinkerhoff, C., Hosen, J., Raymond, P.A. (2021). Does photomineralization of dissolved organics matter in temperate rivers? Journal of Geophysical Research: Biogeosciences 126: e2021JG006402.

  • Newcomer, M. E., Bouskill, N. J., Wainwright, H., Maavara, T., Arora, B., Siirila-Woodburn, E. R., Dwivedi, D., Williams, K. H., Steefel, C. I., Hubbard, S.S. (2021). Hysteresis patterns of watershed nitrogen retention and loss in United States hydrological basins. Global Biogeochemical Cycles 35 (4): e2020GB006777.

  • Maavara, T., Siirila-Woodburn, E.R., Maina, F., Maxwell, R.M., Sample, J., Chadwick, K.D., Carroll, R., Newcomer, M.E., Dong, W., Williams, K.H., Steefel, C.I., Bouskill., N.J. (2021). Modeling geogenic and atmospheric nitrogen through the East River Watershed, Colorado Rocky Mountains. PLOS One 16 (3): e0247907.

  • Brinkerhoff, C., Raymond, P.A., Maavara, T., Ishitsuka, Y., Aho, K., Gleason, C. (2021). Lake morphometry and river network controls on evasion of terrestrially sourced CO2. Geophysical Research Letters 48 (1): e2020GL090068.

  • Tian, H., Xu, R., Canadell, J.G., Thompson, R.L., Winiwarter, W., Suntharalingam, P., Eric A. Davidson, E.A., Ciais, P., Jackson, R.B., Janssens-Maenhout, G., Prather, M.J., Pan, N., Regnier, P., Shi, H., Tubiello, F.N., Zaehle, S., Arneth, A., Battaglia, G., Sarah Berthet, S., Bopp, L., Bouwman, A.F., Buitenhuis, E.T., Chang, J., Chipperfield, M., Dangal, S.R.S., Dlugokencky, E., Elkins, J., Eyre, B.D., Hall, B., Ito, A., Joos, F., Landolfi, A., Laruelle, G.G., Lauerwald, R., Li, W., Lienert, S., Maavara, T., MacLeod, M., Millet, D.B., Olin, S., Pan, S., Patra, P.K., Raymond, P.A., Ruiz, D.J., van der Werf, G.R., Vuichard, N., Wang, J., Wells, K.C., Wilson, C., Yang, J., Yao, Y., Zhou, F. (2020). A comprehensive quantification of nitrous oxide sources and sinks. Nature 586: 248-256.

  • Maavara, T., Akbarzadeh Z., Van Cappellen, P. (2020). Global dam-driven changes to riverine N:P:Si ratios delivered to the coastal ocean. Geophysical Research Letters 47 (15): e2020GL088288.

  • Maavara, T., Chen, Q., Van Meter, K., Brown, L., Zhang, J., Ni, J., Zarfl, C. (2020). River dam impacts on biogeochemistry. Nature Reviews Earth & Environment 1: 103-116.

  • Lauerwald, R., Regnier, P., Figueiredo Souza, V., Enrich-Prast, A., Bastviken, D., Lehner, B. Maavara, T., Raymond, P. (2019). Natural lakes are a minor global source of N2O to the atmosphere. Global Biogeochemical Cycles 33: 1564-1581.

  • Akbarzadeh, Z., Maavara, T., Slowinski, S., Van Cappellen, P. (2019). Effects of damming on river nitrogen fluxes: a global analysis. Global Biogeochemical Cycles 33: 1339-1357.

  • Maavara, T., Lauerwald, R., Laruelle, G.G., Akbarzadeh, Z., Bouskill, N.J., Van Cappellen, P., Regnier, P. (2019). Nitrous oxide emissions from inland waters: Are IPCC estimates too high? Global Change Biology 25 (2): 473-488.

  • Maavara, T., Slowinski, S., Rezanezhad, F., Van Meter, K., Van Cappellen, P. (2018). The role of groundwater discharge fluxes on Si:P ratios in a major tributary to Lake Erie. Science of the Total Environment 622-623: 814-824.

  • Maavara, T., Lauerwald, R., Regnier, P., Van Cappellen, P. (2017). Global perturbations of organic carbon cycling by river damming. Nature Communications 8: 15347.

  • Van Cappellen, P., Maavara, T. (2016). Rivers in the Anthropocene: Global scale modifications of riverine nutrient fluxes by damming. Ecohydrology & Hydrobiology 16 (2):106-111.

  • Maavara, T., Parsons, C.T., Ridenour, C., Stojanovic, S., Dürr,H.H., Powley, H.R., Van Cappellen, P. (2015). Global phosphorus retention by river damming. PNAS 112 (51):15603-15608.

  • Maavara, T., Hood, J.L.A., North, R.L., Doig, L.E., Parsons, C.T., Johansson, J., Hudson, J.J., Lucas, B.T., Liber, K., Vandergucht, D.M., Van Cappellen, P. (2015). Reactive silicon dynamics in a large prairie reservoir (Lake Diefenbaker, Saskatchewan). Journal of Great Lakes Research 41: 100-109.

  • Maavara, T., Dürr, H.H., Van Cappellen, P. (2014). Worldwide retention of nutrient silicon by river damming: From sparse data set to global estimate. Global Biogeochemical Cycles 28 (8): 842-855.