GlobalNEWS Publications

Global NEWS 2: Past and Future Trends

The Global NEWS workgroup recently carried out an effort to enhance the river nutrient export model and apply it in an integrated approach to connect socioeconomic factors and nutrient management to river export of nitrogen, phosphorus, silica and carbon. We analzed past trends (1970ñ2000) and four future scenarios (2030 and 2050) based on the Millennium Ecosystem Assessment scenarios. This work is being published in a special section of Global Biogeochemical Cycles (GBC) that includes 12 articles. Here we list 5 articles from that special section, describing the overall effort and main conclusions (Seitzinger et al., 2010), enhanced nutrient and hydrological input datasets and models (Bouwman et al., 2009; Van Drecht et al., 2009; Fekete et al., in press); and a new dissolved Si model (Beusen et al., 2009) and the updates to Global NEWS ("NEWS 2", Mayorga et al., 2010, published elsewhere). Seitzinger et al. and Mayorga et al. are available here for download.

  1. Seitzinger, S.P., E. Mayorga, A.F. Bouwman, C. Kroeze, A.H.W. Beusen, G. Billen, G. Van Drecht, E. Dumont, B.M. Fekete, J. Garnier and J.A. Harrison (2010), Global river nutrient export: A scenario analysis of past and future trends. Global Biogeochemical Cycles 24, GB0A08, doi:10.1029/2009GB003587. [abstract] [pdf]
  2. Mayorga, E., S.P. Seitzinger, J.A. Harrison, E. Dumont, A.H.W. Beusen, A.F. Bouwman, B.M. Fekete, C. Kroeze and G. Van Drecht (2010), Global Nutrient Export from WaterSheds 2 (NEWS 2): Model development and implementation. Environmental Modelling and Software 25(7):837-853, doi:10.1016/j.envsoft.2010.01.007. [abstract] [pdf]
  3. Beusen, A.H.W., A.F. Bouwman, H.H. D¸rr, A.L.M. Dekkers and J. Hartmann (2009), Global patterns of dissolved silica export to the coastal zone: Results from a spatially explicit global model. Global Biogeochemical Cycles 23, GB0A02, doi:10.1029/2008GB003281. [abstract]
  4. Bouwman, A.F., A.H.W. Beusen and G. Billen (2009), Human alteration of the global nitrogen and phosphorus soil balances for the period 1970ñ2050. Global Biogeochemical Cycles 23, GB0A04, doi:10.1029/2009GB003576. [abstract]
  5. Fekete, B.M., D. Wisser, C. Kroeze, E. Mayorga, L. Bouwman, W.M. Wollheim and C. Vorosmarty (2010), Millennium Ecosystem Assessment scenario drivers (1970-2050): Climate and hydrological alterations. Global Biogeochemical Cycles, doi:10.1029/2009GB003593, in press.
  6. Van Drecht, G., A.F. Bouwman, J. Harrison and J.M. Knoop (2009), Global nitrogen and phosphate in urban waste water for the period 1970-2050. Global Biogeochemical Cycles 23, GB0A03, doi:10.1029/2009GB003458. [abstract]

Initial Presentation of Global NEWS

The first set of articles produced by the Global NEWS workgroup was published in late 2005 and early 2006 as a special section of Global Biogeochemical Cycles (GBC) featuring the Global NEWS models and related work; the complete list of 11 articles and their abstracts are available at the GBC special section web page. Five articles in this collection present the Global NEWS goals and the first version of the nutrient export models; these articles may be downloaded as pdfs below.

  1. Seitzinger, S. P., J. A. Harrison, E. Dumont, A. H. W. Beusen, and A. F. Bouwman (2005), Sources and delivery of carbon, nitrogen, and phosphorus to the coastal zone: An overview of Global Nutrient Export from Watersheds (NEWS) models and their application, Global Biogeochem. Cycles, 19, GB4S01, doi:10.1029/2005GB002606. [abstract] [pdf]
  2. Beusen, A. H. W., A. L. M. Dekkers, A. F. Bouwman, W. Ludwig, and J. Harrison (2005), Estimation of global river transport of sediments and associated particulate C, N, and P, Global Biogeochem. Cycles, 19, GB4S05, doi:10.1029/2005GB002453. [abstract] [pdf]
  3. Dumont, E., J. A. Harrison, C. Kroeze, E. J. Bakker, and S. P. Seitzinger (2005), Global distribution and sources of dissolved inorganic nitrogen export to the coastal zone: Results from a spatially explicit, global model, Global Biogeochem. Cycles, 19, GB4S02, doi:10.1029/2005GB002488. [abstract] [pdf]
  4. Harrison, J. A., S. P. Seitzinger, A. F. Bouwman, N. F. Caraco, A. H. W. Beusen, and C. J. Vˆrˆsmarty (2005), Dissolved inorganic phosphorus export to the coastal zone: Results from a spatially explicit, global model, Global Biogeochem. Cycles, 19, GB4S03, doi:10.1029/2004GB002357. [abstract] [pdf]
  5. Harrison, J. A., N. Caraco, and S. P. Seitzinger (2005), Global patterns and sources of dissolved organic matter export to the coastal zone: Results from a spatially explicit, global model, Global Biogeochem. Cycles, 19, GB4S04, doi:10.1029/2005GB002480. [abstract] [pdf]

Other Global NEWS Publications

  1. Link to special issue of Global Biogeochemical Cycles: Past and Future Trends in Nutrient Export From Global Watersheds and Impacts on Water Quality and Eutrophication
    Harrison, J.A., R.J. Maranger, R.B. Alexander, A.E. Giblin, P.-A. Jacinthe, E. Mayorga, S.P. Seitzinger, D.J. Sobota and W.M. Wollheim. (2009). The regional and global significance of nitrogen removal in lakes and reservoirs. Biogeochemistry 93 (1-2):143-157, doi:10.1007/s10533-008-9272-x. [abstract] [pdf]
  2. Liu, K.-K., S.P. Seitzinger, E. Mayorga, J. Harrison and V. Ittekkot. (2009). Fluxes of nutrients and selected organic pollutants carried by rivers, Chapter 8, pp. 141-167. In: Urban Jr., E. R., B. Sundby, P. Malanotte-Rizzoli and J.M. Melillo (eds.). Watersheds, Bays, and Bounded Seas, Dynamics and vulnerability of semi-enclosed marine systems. SCOPE 70. Island Press, Washington, D.C. [Book Description] [pdf]
  3. Glibert, P.M., E. Mayorga and S. Seitzinger. (2008). Prorocentrum minimum tracks anthropogenic nitrogen and phosphorus inputs on a global basis: application of spatially explicit nutrient export models. Harmful Algae 8: 33-38, doi:10.1016/j.hal.2008.08.023. [abstract] [pdf]
  4. Seitzinger, S.P. and E. Mayorga. (2008). Linking Watersheds to Coastal Systems: A Global Perspective on River Inputs of N, P and C. Ocean Carbon and Biogeochemistry Program Newsletter 1(1):8-11. [OCB Publications] [pdf]
  5. Seitzinger, S.P. and J.A. Harrison. (2008). Sources and delivery of Nitrogen to coastal systems, pp. 469-510, Chapter 8. In: D. Capone, D.A. Bronk, M.R. Mullholland and E. Carpenter (eds.), Nitrogen in the marine environment, 2nd edition. Academic Press, New York. [pdf]
  6. Kroeze, C., E. Dumont, and S.P. Seitzinger. (2005). New estimates of global emissions of N2O from rivers and estuaries. Environmental Sciences 2(2-3): 159-165. [abstract] [pdf]

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