@article{fdi:010087877,
  title = {{T}he nitrogen metabolism of growing sub-{S}aharan cities and their prospect for shifting from regional sinks to sustainable city region food systems},
  author = {{W}assenaar, {T}. and {B}odo, {B}.{S}. and {H}ilou, {A}. and {R}ochelle-{N}ewall, {E}mma},
  editor = {},
  language = {{ENG}},
  abstract = {{U}rban development trajectories in sub-{S}aharan {A}frica are unsustainable. {F}ast-growing cities constitute nutrient sinks relying on nutrient-poor hinterlands. {W}e propose a pragmatic waste flow assessment providing authorities with a cross-sectoral view of a city's nutrient sink status. {F}ollowing a nested approach, we focus on the origin and fate of a city's nutrient-containing waste flows, constituting a partial urban metabolism. {A}pplication of this method for nitrogen to {M}aradi, {N}iger, and {O}uagadougou, {B}urkina {F}aso, shows that the city of {M}aradi is a nitrogen sink in a still rather sustainable city region food system. {M}aradi's {T}erritorial {S}ustenance index, expressing net {N} provision from within the territorial system as a share of urban throughput, is around 79%. {B}ut {M}aradi may well be set to evolve towards a situation similar to that of {O}uagadougou: a large nitrogen sink with no significant city-hinterland recycling. {O}uagadougou exhibits a {T}erritorial {S}ustenance index of about 5%. {U}rination constitutes the dominant nitrogen loss pathway and urine-collecting initiatives could provide valuable fertilizer adapted to local agricultural requirements and constraints, increasing the urban system's sustainability by enhancing regional food provision as well as by reducing sanitation-induced urban water pollution.},
  keywords = {{NIGER} ; {MARADI} ; {BURKINA} {FASO} ; {OUAGADOUGOU}},
  booktitle = {},
  journal = {{R}egional {E}nvironmental {C}hange},
  volume = {23},
  numero = {},
  pages = {71 [14 ]},
  ISSN = {1436-3798},
  year = {2023},
  DOI = {10.1007/s10113-023-02070-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087877},
}