Abstract
The present study quantified for the two major cities of Ghana, Accra and Kumasi, the contribution of peri-urban agriculture, rural agriculture and urban agriculture to urban food supply, and analysed how much of the nutrients needed in peri-urban areas could be recovered from urban waste recycling. While the majority of calorie rich food derives from rural areas, urban and peri-urban farms cover significant shares of certain, usually more perishable but vitamin rich commodities. With every harvest, the soils in the production areas export parts of their nutrients or soil fertility. Thus the “urban nutrient footprint” is significant and calls for options to close the rural-urban nutrient loop. Currently, between 70 and 80 % of the nitrogen and phosphorous consumed in Kumasi pollutes the urban environment, especially ground and surface water. Based on the available waste transport capacity in Kumasi, the entire nitrogen (N) and phosphorus (P) demand of urban farming could be covered, and 18 % of the N and 25 % of the P needs of peri-urban agriculture in a 40 km radius around Kumasi, if the already collected organic municipal waste and fecal sludge would be co-composted.
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References
Adam M (2001) Definition and boundaries of the peri-urban interface: patterns in the patchwork. In: Drechsel P, Kunze D (eds) Waste composting for urban and peri-urban agriculture: closing the rural-urban nutrient cycle in Sub-Saharan Africa. CABI Publishing, Wallingford, pp 193–208
Belevi H (2002) Material flow analysis as a strategic planning tool for regional waste water and solid waste management. In: Proceedings of the workshop “Globale Zukunft: Kreislaufwirtschaftskonzepte im kommunalen Abwasser- und Fäkalienmanagement”. Munich, pp 13–15. http://www2.gtz.de/Dokumente/oe44/ecosan/en-material-flow-analysis-wastewater-and-waste-management-2002.pdf. Accessed 31 Sept 2013
CTA (2005) Feeding the towns: a weighty dilemma. SPORE 117:4–5
Drechsel P, Cofie O, Danso G (2010) Closing the rural-urban food and nutrient loops in West Africa: a reality check. Urban Agric Mag 23:8–10
Drechsel P, Graefe S, Fink M (2007) Rural-urban food, nutrient and virtual water flows in selected West African cities. International Water Management Institute, Colombo, pp 35 (IWMI Research Report Series 115)
Erni M, Drechsel P, Bader H-P, Scheidegger R, Zurbruegg C, Kipfer R (2010) Bad for the environment, good for the farmer? Urban sanitation and nutrient flows. Irrig Drainage Syst Spec Issue Wastewater Reuse 24(1–2):113–125
FAO (2012a) Growing greener cities in Africa: first status report on urban and peri-urban horticulture in Africa. FAO, Rome
FAO (2012b) FAOSTAT online database on Ghana fertilizer imports. http://faostat.fao.org/
Kudzodzi W (2006) Trade-Ghana: the chilling effect of frozen poultry imports. IPS, Ghana, p 25
Leitzinger C (2001) The potential of co-composting in Kumasi—quantification of the urban and peri-urban nutrient balance. In: Drechsel P, Kunze D (eds.) Waste Composting for urban and peri-urban agriculture—closing the rural-urban nutrient cycle in Sub-Saharan Africa. IWMI/FAO/CABI, Wallingford, pp 150–162
Mensah A (2004) Strategy for solid and liquid waste management in Kumasi. In: Paper presented during the IWMI-SANDEC-KMA-KNUST workshop on “Co-composting of solid and liquid waste for agriculture: review of progress and next plans”, KNUST, Kumasi, 27. Jan 2004
Obuobie E, Keraita B, Danso G, Amoah P, Cofie OO, Raschid-Sally L, Drechsel P (2006) Irrigated urban vegetable production in Ghana: characteristics, benefits and risks. IWMI-RUAF-CPWF. IWMI, Accra, pp 150
Prain G, Karanja N, Lee-Smith D (Eds) (2010) African urban harvest: agriculture in the cities of Cameroon, Kenya and Uganda. Springer, New York
Smit J, Nasr J, Ratta A (2001) Urban agriculture: food, jobs and sustainable cities, 2nd edn. http://jacsmit.com/book.html. Accessed 31 Sept 2013
Van Veenhuizen R (ed) (2006) Cities farming for the future—urban agriculture for green and productive cities. RUAF, IDRC and IIRR, Ottawa
Vodounhessi A (2006) Financial and institutional challenges to make faecal sludge management integrated part of ecosan approach in West Africa. Case study of Kumasi, Ghana. MSc thesis, UNESCO-IHE, Delft, NL, p 130
Zachary GP (2004) Cheap chickens: Feeding Africa’s poor. World Policy J 21:47–52
Acknowledgments
The author likes to acknowledge the support of the Water, Land & Ecosystems Research Program of the CGIAR, and the ETH Zurich and SANDEC/EAWAG for assistance with the Material Flow Analysis.
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Drechsel, P. (2014). Who Feeds the Cities? A Comparison of Urban, Peri-urban and Rural Food Flows in Ghana. In: Maheshwari, B., Purohit, R., Malano, H., Singh, V., Amerasinghe, P. (eds) The Security of Water, Food, Energy and Liveability of Cities. Water Science and Technology Library, vol 71. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-8878-6_19
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