@article{fdi:010079338,
  title = {{N}utrient budgets in the {S}aigon-{D}ongnai {R}iver basin : past to future inputs from the developing {H}o {C}hi {M}inh megacity ({V}ietnam)},
  author = {{N}guyen, {T}. {T}. {N}. and {N}emery, {J}. and {G}ratiot, {N}icolas and {G}arnier, {J}. and {S}trady, {E}milie and {N}guyen, {D}. {P}. and {T}ran, {V}. {Q}. and {N}guyen, {A}. {T}. and {C}ao, {S}. {T}. and {H}uynh, {T}. {P}. {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}o {C}hi {M}inh {C}ity ({HCMC}, {V}ietnam) is one of the fastest growing megacities in the world. {I}n this paper, we attempt to analyse the dynamics of nutrients, suspended sediments, and water discharges in its aquatic systems today and in the future. {T}he work is based on nine sampling sites along the {S}aigon {R}iver and one on the {D}ongnai {R}iver to identify the reference water status upstream from the urban area and the increase in fluxes that occur within the city and its surroundings. {F}or the first time, the calculated fluxes allow drawing up sediment and nutrient budgets at the basin scale and the quantification of total nutrient loading to the estuarine and coastal zones (2012-2016 period). {B}ased on both national {V}ietnamese and supplementary monitoring programs, we estimated the water, total suspended sediment, and nutrients ({T}otal {N}, {T}otal {P}, and dissolved silica: {DS}i) fluxes at 137 m(3)year(-1), 3,292 x 10(3)ton{SS} year(-1), 5,323 ton{N} year(-1), 450 ton{P} year(-1), and 2,734 ton{S}i year(-1)for the {S}aigon {R}iver and 1,693 m(3)year(-1), 1,175 x 10(3)ton{SS} year(-1), 31,030 ton{N} year(-1), 1,653 ton{P} year(-1), and 31,138 ton{S}i year(-1)for the {D}ongnai {R}iver, respectively. {N}utrient fluxes provide an indicator of coastal eutrophication potential (indicator of coastal eutrophication potential), using nutrient stoichiometry ratios. {D}espite an excess of nitrogen and phosphorus over silica, estuarine waters downstream of the megacity are not heavily impacted by {HCMC}. {F}inally, we analysed scenarios of future trends (2025-2050) for the nutrient inputs on the basis of expected population growth in {HCMC} and improvement of wastewater treatment capacity. {W}e observed that without the construction of a large number of additional wastewater treatment plants, the eutrophication problem is likely to worsen. {T}he results are discussed in the context of the wastewater management policy.},
  keywords = {budgets ; nutrients ; past and future scenarios ; sediment ; wastewater ; management ; {VIET} {NAM} ; {HO} {CHI} {MINH} {VILLE} ; {DONG} {NAI} {BASSIN}},
  booktitle = {},
  journal = {{R}iver {R}esearch and {A}pplications},
  volume = {36},
  numero = {6},
  pages = {974--990},
  ISSN = {1535-1459},
  year = {2020},
  DOI = {10.1002/rra.3552},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079338},
}