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Food- and feed-based nutrient flows in two West African cities

  • Hanna KargEmail author
  • Edmund K. Akoto-Danso
  • Pay Drechsel
  • Abdul-Halim Abubakari
  • Andreas Buerkert
Original Article

Abstract

Recent studies have examined the urban metabolism of cities using urban consumption as a proxy for food inflows but very few studies have aimed at quantifying the role of cities as trade hubs and nutrient sinks of their hinterlands. We therefore examined the linkages between food and animal feed supply, their places of production and nutrient flows through the urban system in the two West African cities of Tamale (Ghana) and Ouagadougou (Burkina Faso). Using primary data on food and feed flows, and secondary data to assess the transformation of these flows into nutrient terms, we show that, besides urban consumption, the function of the two study sites as trade hubs significantly determines nutrient flows. In Tamale, > 50% of the nutrient inflows was neither consumed nor was lost in situ but left that city again for other destinations. At least 30% of the incoming cereals was stored in the city for later consumption or export. Ouagadougou relied more on imported goods with 40% of N imported from foreign countries compared to Tamale where only 10% of the N was imported, thus contributing to heavier nutrient extraction in remote production areas.

Keywords

Food supply Nutrient flows Resource recovery Urban metabolism West Africa 

Notes

Acknowledgements

This work was carried out as part of the UrbanFoodPlus project, jointly funded by the German Federal Ministry of Education and Research (BMBF) and the German Federal Ministry for Economic Cooperation and Development (BMZ) under the initiative GlobE – Research for the Global Food Supply, Grant Numbers 031A242-A and 031A242-D, with support from the CGIAR research programme on Water, Land and Ecosystems.

References

  1. Bai X (2007) Industrial ecology and the global impacts of cities. J Ind Ecol 11:1–6.  https://doi.org/10.1162/jie.2007.1296 CrossRefGoogle Scholar
  2. Bellwood-Howard I, Haring V, Karg H, Roessler R, Schlesinger J, Shakya M (2015) Characteristics of urban and peri-urban agriculture in West Africa: results of an exploratory survey conducted in Tamale (Ghana) and Ouagadougou (Burkina Faso). IWMI, ColomboGoogle Scholar
  3. Bellwood-Howard I, Shakya M, Korbeogo G, Schlesinger J (2018) The role of backyard farms in two West African urban landscapes. Landsc Urb Plan 170:34–47.  https://doi.org/10.1016/j.landurbplan.2017.09.026 CrossRefGoogle Scholar
  4. Brunner PH, Rechberger H (2004) Practical handbook of material flow analysis. CRC Press LLC, Boca RatonGoogle Scholar
  5. Chowdhury RB, Moore GA, Weatherley AJ, Arora M (2014) A review of recent substance flow analyses of phosphorus to identify priority management areas at different geographical scales. Resour Conserv Recy 83:213–228.  https://doi.org/10.1016/j.resconrec.2013.10.014 CrossRefGoogle Scholar
  6. Cofie OO, Kranjac-Berisavljevic G, Drechsel P (2005) The use of human waste for peri-urban agriculture in Northern Ghana. Renew Agric Food Syst 20:73–80.  https://doi.org/10.1079/RAF200491 CrossRefGoogle Scholar
  7. Cofie OO, Kone D, Rothenberger S, Moser D, Zubruegg C (2009) Co-composting of faecal sludge and organic solid waste for agriculture: process dynamics. Water Res 43:4665–4675.  https://doi.org/10.1016/j.watres.2009.07.021 CrossRefPubMedGoogle Scholar
  8. Cordell D, Rosemarin A, Schröder JJ, Smit AL (2011) Towards global phosphorus security: a systems framework for phosphorus recovery and reuse options. Chemosphere 84:747–758.  https://doi.org/10.1016/j.chemosphere.2011.02.032 CrossRefPubMedGoogle Scholar
  9. Currie P, Lay-Sleeper E, Fernández JE, Kim J, Musango JK (2015) Towards urban resource flow estimates in data scarce environments: the case of African cities. JEP 06:1066–1083.  https://doi.org/10.4236/jep.2015.69094 CrossRefGoogle Scholar
  10. Daily Graphic (2015) Tamale Metropolitan assembly faces waste management hurdle. Peacefmonline. http://www.peacefmonline.com/pages/local/news/201508/251963.php. Accessed 18 Jan 2018
  11. Decker EH, Elliott S, Smith FA, Blake DR, Sherwood Rowland F (2000) Energy and material flow through the urban system. Annu Rev Energy Environ 25:685–740CrossRefGoogle Scholar
  12. Diogo RVC, Buerkert A, Schlecht E (2010) Horizontal nutrient fluxes and food safety in urban and peri-urban vegetable and millet cultivation of Niamey, Niger. Nutr Cycl Agroecosyst 87:81–102.  https://doi.org/10.1007/s10705-009-9315-2 CrossRefGoogle Scholar
  13. Drechsel P, Hanjra MA (2016) Green opportunities for urban sanitation challenges through energy, water and nutrient recovery. In: Dodds F, Bartram J (eds) The water, food, energy and climate nexus: challenges and an agenda for action. Earthscan, Routledge, AbingdonGoogle Scholar
  14. Drechsel P, Graefe S, Fink M (2007) Rural–urban food, nutrient and virtual water flows in selected West African cities. IWMI Research Report No. 115, IWMI, Colombo, Sri LankaGoogle Scholar
  15. Erni M, Bader H, Drechsel P, Scheidegger R, Zurbrügg C, Kipfer R (2011) Urban water and nutrient flows in Kumasi, Ghana. Urb Water J 8:135–153.  https://doi.org/10.1080/1573062X.2011.581294 CrossRefGoogle Scholar
  16. Færge J, Magid J, Penning de Vries FWT (2001) Urban nutrient balance for Bangkok. Ecol Model 139:63–74CrossRefGoogle Scholar
  17. Feedipedia (2018). https://www.feedipedia.org/
  18. Firmansyah I, Spiller M, de Ruijter FJ, Carsjens GJ, Zeeman G (2017) Assessment of nitrogen and phosphorus flows in agricultural and urban systems in a small island under limited data availability. Sci Total Environ 574:1521–1532.  https://doi.org/10.1016/j.scitotenv.2016.08.159 CrossRefPubMedGoogle Scholar
  19. Forster T, Escudero AG (2014) City regions as landscapes for people, food and nature. EcoAgriculture Partners, on behalf of the Landscapes for People, Food and Nature, Washington, DCGoogle Scholar
  20. Ghana Statistical Service (2013) 2010 population & housing census: national analytical report, Accra, GhanaGoogle Scholar
  21. Ghana Statistical Service (2014) 2010 population & housing census: district analytical report, Tamale Metropolis, Accra, GhanaGoogle Scholar
  22. Goldstein B, Birkved M, Fernández J, Hauschild M (2017) Surveying the environmental footprint of urban food consumption. J Ind Ecol 21:151–165.  https://doi.org/10.1111/jiec.12384 CrossRefGoogle Scholar
  23. Heinss U, Larmie SA, Strauss M (1998) Solids separation and pond systems for the treatment of faecal sludges in the tropics: lessons learnt and recommendations for preliminary design. SANDEC Report No. 05/98, Duebendorf, SwitzerlandGoogle Scholar
  24. Institut National de la Statistique et de la Démographie (2015) Annuaire statistique 2014. Ministère de l’économie et des finances, Burkina FasoGoogle Scholar
  25. Karg H, Drechsel P, Akoto-Danso E, Glaser R, Nyarko G, Buerkert A (2016) Foodsheds and city region food systems in two West African cities. Sustainability 8:1175.  https://doi.org/10.3390/su8121175 CrossRefGoogle Scholar
  26. Karg H, Bellwood-Howard I, Akoto-Danso EK, Schlesinger J, Chagomoka T, Drescher A (under review) A small town agricultural markets in northern Ghana and their connection to rural and urban transformation. Eur J Dev ResGoogle Scholar
  27. Kennedy C, Cuddihy J, Engel-Yan J (2007) The changing metabolism of cities. J Ind Ecol 11:43–59.  https://doi.org/10.1162/jie.2007.1107 CrossRefGoogle Scholar
  28. Keraita B, Drechsel P, Cofie OO, Nikiema J (2015) Productive and safe use of urban organic wastes and wastewater in urban food production systems in low-income countries. In: de Zeeuw H, Drechsel P (eds) Cities, food and agriculture; towards resilient urban food systems. Earthscan, Routledge, AbingdonGoogle Scholar
  29. Maidment RI, Grimes D, Allan RP, Tarnavsky E, Stringer M, Hewison T, Roebeling R, Black E (2014) The 30 year TAMSAT African Rainfall Climatology And Time series (TARCAT) data set. J Geophys Res Atmos 119:10619–10644.  https://doi.org/10.1002/2014JD021927 CrossRefGoogle Scholar
  30. Metson GS, Bennett EM (2015) Phosphorus cycling in Montreal’s food and urban agriculture systems. PLoS ONE 10:e0120726.  https://doi.org/10.1371/journal.pone.0120726 CrossRefPubMedPubMedCentralGoogle Scholar
  31. Miezah K, Obiri-Danso K, Kádár Z, Fei-Baffoe B, Mensah MY (2015) Municipal solid waste characterization and quantification as a measure towards effective waste management in Ghana. Waste Manag 46:15–27.  https://doi.org/10.1016/j.wasman.2015.09.009 CrossRefPubMedGoogle Scholar
  32. Otoo M, Drechsel P (eds) (2018) Resource recovery from waste: business models for energy. Nutrient and water reuse in low- and middle-income countries. Earthscan, Routledge, AbingdonGoogle Scholar
  33. Otoo M, Drechsel P, Danso G, Gebrezgabher S, Rao K, Madurangi G (2016) Testing the implementation potential of resource recovery and reuse business models: from baseline surveys to feasibility studies and business plans. Resource Recovery and Reuse Series 10, International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE), Colombo, Sri LankaGoogle Scholar
  34. Pradhan SK, Opuni SC, Fosu M, Drechsel P (2013) Municipal organic waste management: challenges and opportunities in Tamale, Ghana. Paper presented at the 36th WEDC [Water, Engineering and Development Centre] international conference on delivering water, sanitation and hygiene services in an uncertain environment, Nakuru, Kenya, 1–5 July 2013Google Scholar
  35. Predotova M, Gebauer J, Diogo RV, Schlecht E, Buerkert A (2010) Emissions of ammonia, nitrous oxide and carbon dioxide from urban gardens in Niamey, Niger. Field Crops Res 115:1–8.  https://doi.org/10.1016/j.fcr.2009.09.010 CrossRefGoogle Scholar
  36. Stadlmayr B et al (2012) West African Food Composition Table—Table de composition des aliments d’Afrique de l’Ouest. FAO, RomeGoogle Scholar
  37. Tarnavsky E, Grimes D, Maidment R, Black E, Allan RP, Stringer M, Chadwick R, Kayitakire F (2014) Extension of the TAMSAT satellite-based rainfall monitoring over Africa and from 1983 to present. J Appl Meteorol Climatol 53:2805–2822.  https://doi.org/10.1175/JAMC-D-14-0016.1 CrossRefGoogle Scholar
  38. UN-HABITAT (2016) Urbanization and structural transformation. Structural Transformation 2, Nairobi, KenyaGoogle Scholar

Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Organic Plant Production and Agroecosystems Research in the Tropics and SubtropicsUniversity of KasselWitzenhausenGermany
  2. 2.International Water Management InstituteColomboSri Lanka
  3. 3.Department of HorticultureUniversity for Development StudiesTamaleGhana

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