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Farmer strategies for tree crop diversification in the humid tropics. A review

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Abstract

Many tree crop farms in the tropics are in a process of crop diversification, even in regions that have traditionally been dominated by a single tree crop species. Here, we review the factors that drive diversification and that influence farmer choices. We analyze recent literature from tropical Latin America, Africa, Asia, and the Pacific Islands, with emphasis on West and Central Africa. We use a framework that distinguishes farmer objectives in diversifying; the opportunities and constraints caused by environmental, technological, market, and policy factors; and farmer characteristics. Our main findings are: (1) Farmers diversify to increase their income by adding more lucrative crops. They diversify also to spread their income to lean times between the harvests of their traditional crops. In addition, farmers diversify to maintain or increase their food security especially while young tree crops are maturing and to reduce their vulnerability to environmental, market, and policy shocks. (2) Famers take advantage of opportunities and are subject to constraints. These include: heterogeneous site characteristics; the legacy of previous forest vegetation; emergent market opportunities from growing urban centers; a diversity of products and market outlets for some crops that reduces marketing risks; government policies; labor constraints that favor certain crops; the availability of investment capital that influences particularly the timing of diversification decisions; and access to improved planting material. (3) Diversification decisions also depend on farmer characteristics such as their age, education, financial situation, and farm and family size. Young farmers are not always more active in diversification than older farmers, although diversification and crop change are often related to generational change. Returning urban migrants have often had a positive effect in terms of diversification and innovation. (4) Diversification is often a response to structural environmental degradation caused by decades of tree crop monocultures. We conclude with a list of areas where government and non-government organizations can support farmers in their diversification decisions.

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References

  • Alger K, Caldas M (1996) Cacau na Bahia: decadência e ameaça à Mata Atlântica. Ciência Hoje 20:28–35

    Google Scholar 

  • Barrett CB, Reardon T, Webb P (2001) Non-agricultural income diversification and household livelihood strategies in rural Africa: concepts, dynamics and policy implications. Food Policy 26:315–331. doi:10.1016/S0306-9192(01)00014-8

    Article  Google Scholar 

  • Bateman MJ (1990) Ghana cocoa pricing policy study. World Bank working paper WPS 429. World Bank, Washington DC

    Google Scholar 

  • Beer J, Muschler R, Kass D, Somarriba E (1998) Shade management in coffee and cacao plantations. Agrofor Syst 38:139–164. doi:10.1007/978-94-015-9008-2_6

    Article  Google Scholar 

  • Berry S (1976) Supply response reconsidered: cocoa in Western Nigeria, 1909–44. J Dev Stud 13:4–17

    Article  Google Scholar 

  • Blanc-Pamard C, Ruf F (1992) La Transition Caféière. CIRAD-SAR, Collection Systèmes Agraires No. 16, Montpellie

    Google Scholar 

  • Boserup E (1965) The conditions of agricultural growth: the economics of agrarian change under population pressure. Allen and Unwin, London

    Google Scholar 

  • Cashin PC, McDermott J, Scott A (2002) Booms and slumps in world commodity prices. J Dev Econ 69:277–296, 1016/S0304-3878(02)00062-7

    Article  Google Scholar 

  • Chaléard JL (1996) Temps des villes, temps des vivres. L'essor du vivrier marchand en Côte d'Ivoire, Karthala, Paris

    Google Scholar 

  • Chambon B, Mokoko SG (2013) Les déterminants du choix des cultures pérennes dans les systèmes de production diversifiés des hévéaculteurs au sud ouest du Cameroun. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 185–195

    Google Scholar 

  • Clarence-Smith WG (1993) Struggles over labour conditions in the plantations of São Tomé and Principe, 1875–1914. In: Twaddle M (ed) The wages of slavery: from chattel slavery to wage labour in Africa, the Caribbean, and England. Frank Cass, London, pp 149–167

    Google Scholar 

  • Clarence-Smith WG (1996) Cocoa pioneer fronts since 1800—the role of smallholders, planters and merchants. Macmillan Press, Houndmills

    Google Scholar 

  • Clarence-Smith WG (2000) Cocoa and chocolate, 1765–1914. Routledge, London

    Google Scholar 

  • Colin JP (1990) La dynamique des systèmes productifs agricoles en basse Côte d'Ivoire. Dynamique des Systèmes Agraires. La dimension Économique. ORSTOM, CNRS, Paris, pp 165–190

    Google Scholar 

  • Colin JP, Ruf F (2011) Une économie de plantation en devenir. L'essor des contrats de planter-partager comme innovation institutionelle dans les rapports entre autochtones et étrangers en Côte d'Ivoire. Rev Tiers Monde 207:169–187

    Article  Google Scholar 

  • Correia M, Diabaté M, Beavogui P, Guilavogui K, Lamanda N, de Foresta H (2010) Conserving forest tree diversity in Guinée Forestière (Guinea, West Africa): the role of coffee-based agroforests. Biodivers Conserv 19:1725–1747. doi:10.1007/s10531-010-9800-6

    Article  Google Scholar 

  • Cortina-Villar S, Plascencia-Vargas H, Vaca R, Schroth G, Zepeda Y, Soto-Pinto L, Nahed-Toral J (2012) Resolving the conflict between ecosystem protection and land use in protected areas of the Sierra Madre de Chiapas, Mexico. Environ Manage 49:649–662. doi:10.1007/s00267-011-9799-9

    Article  PubMed  Google Scholar 

  • de Rouw A (1987) Tree management as part of two farming systems in the wet forest zone (Ivory Coast). Acta Oecol Oecol Appl 8:39–51

    Google Scholar 

  • Dean W (1987) Brazil and the struggle for rubber. Cambridge University Press, Cambridge

    Google Scholar 

  • Dean W (1995) With broadax and firebrand—the destruction of the Brazilian Atlantic forest. University of California Press, Berkeley

    Google Scholar 

  • Dupraz P, Lifran R (1995) The economic complementarity of cocoa and coconut intercropping: asset strategies of smallholders in Malaysia and implications for cocoa supply. In: Ruf F, Siswoputranto PS (eds) Cocoa cycles, the economics of cocoa supply. Woodhead Publishing, Abington, pp 281–289

    Google Scholar 

  • Dupraz P, Morisson M (2013) La place du cacaoyer et du cocotier dans les plantations familiales de Malaisie péninsulaire. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 243–264

    Google Scholar 

  • Eakin H, Benessaiah K, Barrera JF, Cruz-Bello GM, Morales H (2012) Livelihoods and landscapes at the threshold of change: disaster and resilience in a Chiapas coffee community. Reg Environ Chang 12:475–488. doi:10.1007/s10113-011-0263-4

    Article  Google Scholar 

  • Feintrenie L, Levang P (2009) Sumatra's rubber agroforests: advent, rise and fall of a sustainable cropping system. Small-scale For 8:323–335. doi:10.1007/s11842-009-9086-2

    Article  Google Scholar 

  • Feintrenie L, Ollivier J, Enjalric F (2010) How to take advantage of a new crop? The experience of Melanesian smallholders. Agrofor Syst 79:145–155. doi:10.1007/s10457-010-9285-z

    Article  Google Scholar 

  • Feintrenie L, Enjalric F, Ollivier J (2013) Systèmes agroforestiers à base de cocotiers et cacaoyers au Vanuatu, une stratégie de diversification en adéquation avec le cycle de vie des exploitants. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 231–242

    Google Scholar 

  • Fiko K, Yao A (2013) L'hévéa dans le temple du cacao. Le sud-ouest de la Côte d'Ivoire 1990–2000. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 119–130

    Google Scholar 

  • Gouyon A (1995) Government policy and smallholder changes in sustainable tree crop development in the tropics: a comparison of rubber and cocoa. In: Ruf F, Siswoputranto PS (eds) Cocoa cycles—the economics of cocoa supply. Woodhead Publishing, Abington, pp 291–312

    Google Scholar 

  • Guillerme S, Kumar BM, Menon A, Hinnewinkel C, Maire E, Santhoshkumar AV (2011) Impacts of public policies and farmer preferences on agroforestry practices in Kerala, India. Environ Manag 48:351–364. doi:10.1007/s00267-011-9628-1

    Article  CAS  Google Scholar 

  • Jagoret P, Michel-Dounias I, Snoeck D, Ngnogué HT, Malézieux E (2012) Afforestation of savannah with cocoa agroforestry systems: a small-farmer innovation in Central Cameroon. Agrofor Syst 86:493–504. doi:10.1007/s10457-012-9513-9

    Article  Google Scholar 

  • Kumar BM, Nair PKR (2004) The enigma of tropical homegardens. Agrofor Syst 61:135–152. doi:10.1023/B:AGFO.0000028995.13227.ca

    Article  Google Scholar 

  • Läderach P, Martinez A, Schroth G, Castro N (2013) Predicting the future climatic suitability for cocoa farming of the world's leading producer countries, Ghana and Côte d'Ivoire. Clim Chang 119:841–854. doi:10.1007/s10584-013-0774-8

    Article  Google Scholar 

  • Léonard E, Oswald M (1996) Une agriculture forestiere sans foret. Changements agro-ecologiques et innovations paysannes en Cote d'Ivoire. Nat Sci Soc 4:202–216

    Google Scholar 

  • Léonard E, Vimard P (2005) Crises et Recompositions d'une Agriculture Pionnière en Côte d'Ivoire. Karthala, Paris

    Google Scholar 

  • Malézieux E, Moustier P (2005a) La diversification dans les agricultures du Sud: á la croisée de logiques d'environnement et de marché I. Un contexte nouveau. Cah Agric 14:277–281

    Google Scholar 

  • Malézieux E, Moustier P (2005b) La diversification dans les agricultures du Sud: á la croisée de logiques d'environnement et de marché II. Niveaux d'organisation, méthodes d'analyse et outils de recherche. Cah Agric 14:375–382

    Google Scholar 

  • Michel-Dounias I, Steer L, Giry E, Jannot C, Kalms JM (2013) Développement du palmier à huile et de l'oranger au coeur d'une zone cacaoyère dans l'Est du Ghana'. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 101–118

    Google Scholar 

  • Michon G (2005) Domesticating forests—how farmers manage forest resources. Center for International Forestry Research, Bogor

    Google Scholar 

  • Niehof A (2004) The significance of diversification for rural livelihood systems. Food Policy 29:321–328. doi:10.1016/j.foodpol.2004.07.009

    Article  Google Scholar 

  • Norton GW, Alwang J, Masters WA (2006) The economics of agricultural development—world food systems and resource use. Routledge, New York

    Google Scholar 

  • Ollivier J, Courbet P, Democrit R (2013) Les planteurs de cocotiers face à la maladie du jaunissement mortel: Étude de cas dans deux villages de la région centrale du Ghana. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 71–83

    Google Scholar 

  • Owusu EA, Ruf F (2013) De Firestone à Michelin: histoires d'hévéa dans un pays de cacao, le Ghana. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 149–163

    Google Scholar 

  • Paul F, Ruf F, Yoddang (2013) Diversification et cycle de cultures pérennes à Aceh, Indonésie. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 265–279

    Google Scholar 

  • Pelling M (2011) Adaptation to climate change—from resilience to transformation. Routledge, London

    Google Scholar 

  • Ruf F (1987) Eléments pour une théorie sur l'agriculture des régions tropicales humides I. De la forêt, rente différentielle, au cacaoyer, capital travail. Agron Trop 42:218–232

    Google Scholar 

  • Ruf F (1995a) Booms et Crises du Cacao. Les Vertiges de l'Or Brun, Karthala, Paris

    Google Scholar 

  • Ruf F (1995b) From the forest rent to the tree capital—basic laws of cocoa cycles. In: Ruf F, Siswoputranto PS (eds) Cocoa cycles—the economics of cocoa supply. Woodhead Publishing, Cambridge, pp 1–53

    Google Scholar 

  • Ruf F (1996) De l'économie familiale de plantation à l'économie familiale de la replantation-cacao en Côte d'Ivoire et en Indonésie. In: Pichot J, Sibelet N, Lacoeuilhe J-J (eds) Fertilité du Milieu et Stratégies Paysannes sous les Tropiques Humides. CIRAD, Montpellier, pp 451–463

    Google Scholar 

  • Ruf F (2000) L'avenir des cultures pérennes en Indonésie. Cacao et clou de girofle après la tempête monétaire. Tiers-Monde 41:431–452

    Article  Google Scholar 

  • Ruf F (2011) The myth of complex cocoa agroforests: the case of Ghana. Hum Ecol 39:373–388. doi:10.1007/s10745-011-9392-0

    Article  Google Scholar 

  • Ruf F (2013) Diversification des exploitations cacaoyères en Côte d'Ivoire: complémentarité et concurrence de la rente hévéa. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 31–69

    Google Scholar 

  • Ruf F, Lançon F (2004) From slash and burn to replanting: green revolutions in the Indonesian uplands. World Bank, Washington DC

    Google Scholar 

  • Ruf F, Schroth G (2004) Chocolate forests and monocultures—an historical review of cocoa growing and its conflicting role in tropical deforestation and forest conservation. In: Schroth G, Fonseca GAB, Harvey CA, Gascon C, Vasconcelos HL, Izac A-MN (eds) Agroforestry and biodiversity conservation in tropical landscapes. Island Press, Washington, pp 107–134

    Google Scholar 

  • Ruf F, Schroth G (2013a) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Editions Quae, Montpellier

    Google Scholar 

  • Ruf F, Schroth G (2013b) Economie et écologie de la diversification des cultures pérennes tropicales. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 5–30

    Google Scholar 

  • Ruf F, Chambon B, Kongmanee C (2013) L'hévéa: rente naturelle, rente de capitalisation? Le centre-ouest ivoirien et le sud thaïlandais. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 131–147

    Google Scholar 

  • Sambuichi RHR, Vidal DB, Piasentin FB, Jardim JG, Viana TG, Menezes AA, Mello DLN, Ahnert D, Baligar VC (2012) Cabruca agroforests in southern Bahia, Brazil: tree component, management practices and tree species conservation. Biodivers Conserv 21:1055–1077. doi:10.1007/s10531-012-0240-3

    Article  Google Scholar 

  • Sayam VT, Cheyns E (2013) Du binôme café-cacao aux cycles du palmier à huile: le cas de Dabou et Aboisso en Côte d'Ivoire. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 85–100

    Google Scholar 

  • Schroth G, da Mota MSS (2013) Technical and institutional innovation in agroforestry for protected areas management in the Brazilian Amazon—opportunities and limitations. Environ Manag 52:427–440. doi:10.1007/s00267-013-0049-1

    Article  Google Scholar 

  • Schroth G, Lehmann J, Rodrigues MRL, Barros E, Macêdo JLV (2001) Plant–soil interactions in multistrata agroforestry in the humid tropics. Agrofor Syst 53:85–102. doi:10.1023/A:1013360000633

    Article  Google Scholar 

  • Schroth G, Coutinho P, Moraes VHF, Albernaz AKM (2003) Rubber agroforests at the Tapajós river, Brazilian Amazon–environmentally benign land use systems in an old forest frontier region. Agric Ecosyst Environ 97:151–165. doi:10.1016/S0167-8809(03)00116-6

    Article  Google Scholar 

  • Schroth G, Harvey CA, Vincent G (2004a) Complex agroforests—their structure, diversity, and potential role in landscape conservation. In: Schroth G, Fonseca GAB, Harvey CA, Gascon C, Vasconcelos HL, Izac A-MN (eds) Agroforestry and biodiversity conservation in tropical landscapes. Island Press, Washington DC, pp 227–260

    Google Scholar 

  • Schroth G, Moraes VHF, da Mota MSS (2004b) Increasing the profitability of traditional, planted rubber agroforests at the Tapajós River, Brazilian Amazon. Agric Ecosyst Environ 102:319–339. doi:10.1016/j.agee.2003.09.001

    Article  Google Scholar 

  • Schroth G, Läderach P, Dempewolf J, Philpott SM, Haggar JP, Eakin H, Castillejos T, Garcia-Moreno J, Soto-Pinto L, Hernandez R, Eitzinger A, Ramirez-Villegas J (2009) Towards a climate change adaptation strategy for coffee communities and ecosystems in the Sierra Madre de Chiapas, Mexico. Mitig Adapt Strateg Glob Chang 14:605–625. doi:10.1007/s11027-009-9186-5

    Article  Google Scholar 

  • Schroth G, da Mota MSS, Hills T, Soto-Pinto L, Wijayanto I, Arief CW, Zepeda Y (2011a) Linking carbon, biodiversity and livelihoods near forest margins: the role of agroforestry. In: Kumar BM, Nair PKR (eds) Carbon sequestration in agroforestry: processes, policy, and prospects. Springer, Berlin, pp 179–200. doi:10.1007/978-94-007-1630-8_10

    Chapter  Google Scholar 

  • Schroth G, Faria D, Araujo M, Bede L, Van Bael SA, Cassano CR, Oliveira LC, Delabie JHC (2011b) Conservation in tropical landscape mosaics: the case of the cacao landscape of southern Bahia, Brazil. Biodivers Conserv 20:1635–1654. doi:10.1007/s10531-011-0052-x

    Article  Google Scholar 

  • Sonwa DJ, Nkongmeneck BA, Weise SF, Tchatat M, Adesina AA, Janssens MJJ (2007) Diversity of plants in cocoa agroforests in the humid forest zone of Southern Cameroon. Biodivers Conserv 16:2385–2400. doi:10.1007/s10531-007-9187-1

    Article  Google Scholar 

  • Temple L, Fadani (1997) Cultures d'exportation et cultures vivières au Cameroun. Écon Rur 239:40–48

    Article  Google Scholar 

  • Temple L, Nzié JRM (2013) Conditions socio-économiques de la diversification horticole dans les systèmes de productions cacaoyers au sud du Cameroun. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 197–208

    Google Scholar 

  • Trivedi PK (1992) A case study of cocoa replanting and new planting in Bahia, Brazil 1966–1985. J Dev Econ 39:279–299. doi:10.1016/0304-3878(92)90041-7

    Article  Google Scholar 

  • Vaast P, Martínez M, Boulay A, Castillo BD, Harmand J-M (2013) Diversification dans les caféières d'Amérique Centrale: des arbres d'ombrage et de rapport. In: Ruf F, Schroth G (eds) Cultures Pérennes Tropicales: Enjeux Économiques et Écologiques de la Diversification. Quae, Montpellier, pp 223–230

    Google Scholar 

  • Winters P, Davis B, Carletto G, Covarrubias K, Quinones J, Zezza A, Azzari C, Stamoulis K (2009) Assets, activities and rural income generation: evidence from a multicountry analysis. World Dev 37:1435–1452. doi:10.1016/j.worlddev.2009.01.010

    Article  Google Scholar 

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Acknowledgments

We thank the contributors to the book "Cultures Pérennes Tropicales-Enjeux Économiques et Écologiques de la Diversification” (F. Ruf and G. Schroth, eds), Editions Quae, Montpellier, that formed the core and inspiration of this review.

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  1. C.P. 513, 68109-971, Santarém, Brazil

    Götz Schroth

  2. Centre International de Recherche Agronomique pour le Développement (CIRAD), Montpellier, France

    François Ruf

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  1. Götz Schroth
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  2. François Ruf
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Correspondence to Götz Schroth.

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Schroth, G., Ruf, F. Farmer strategies for tree crop diversification in the humid tropics. A review. Agron. Sustain. Dev. 34, 139–154 (2014). https://doi.org/10.1007/s13593-013-0175-4

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