Enhancing healthy ecosystems in northern Ghana through eco-friendly farm-based practices: insights from irrigation scheme-types
Tóm tắt
Farming practices vary from farmer to farmer and from place to place depending on a number of factors including the agroclimatic condition, infrastructure (e.g. irrigation facilities) and management mechanisms (private versus state management). These together affect the functioning and sustainability of the ecosystems. For the sustainability of ecosystems, farmers need to employ ecosystem-based farm practices. This paper examines the ecosystem-based farm management practices (EBFMPs) in private and state-managed irrigation schemes. It also analyses the drivers of farmers’ willingness to pay for EBFMPs sustainability. The study employed mixed methods design, using both qualitative and quantitative techniques of data collection through key informant interviews, focus group discussions and semi-structured questionnaires administered to 300 households. The various EBFMPs adopted by farmers were examined and descriptively presented. The Chi-square automatic interaction detector (CHAID) and multiple linear regression were used to assess the predictors of farmers’ willingness to pay for EBFMPs to enhance the health of agroecosystems. Compost application, conservative tilling, conservation of vegetation, mulching, crop rotation, intercropping with legumes, efficient drainage systems and bunding were the EBFMPs captured in this paper. Farmers in privately-managed irrigation schemes (PIS) more often apply EBFMPs compared with those in state-managed irrigation schemes (SIS). The paper also found that farmers’ willingness to pay to sustain EBFMPs for healthy ecosystems is significantly determined by the type of irrigation scheme they cultivate in (that is, PIS or SIS), their level of education, marital status and perception of soil fertility. Policy makers, implementers, and other stakeholders need to consider the capacity building of irrigation farmers, especially those in SIS in northern Ghana by educating them on agricultural production and ecosystem nexus to enhance the level of usage and willingness to pay for EBFMPs sustainability.
Tài liệu tham khảo
Agula C, Akudugu MA, Mabe FN, Dittoh S. Promoting ecosystem-friendly irrigation farm management practices for sustainable livelihoods in Africa: the Ghanaian experience. Agric Food Econ. 2018;6(1):13. https://doi.org/10.1186/s40100-018-0109-1.
Millennium Ecosystem Assessment. A toolkit for understanding and action. Protecting nature’s Services. Protecting ourselves. 2007. https://www.unpei.org/sites/default/files/PDF/ecosystems-conomicanalysis/MEA-A-Toolkit.pdf. Accessed 28 Aug 2018.
Tansley AG. The use and abuse of vegetational concepts and terms. Ecology. 1935;16(3):284–307.
Abdul-Hanan A, Ayamga M, Donkoh SA. Smallholder adoption of soil and water conservation techniques in Ghana. Afr J Agric Res. 2014;9(5):539–46.
Agula C, Akudugu MA, Dittoh S, Mabe FN. Promoting sustainable agriculture in Africa through ecosystem-based farm management practices: evidence from Ghana. Agric Food Secur. 2018. https://doi.org/10.1186/s40066-018-0157-5.
Knowler D, Bradshaw B. Farmers’ adoption of conservation agriculture: a review and synthesis of recent research. Food Policy. 2007;32(1):25–48.
Nkegbe PK, Shankar B. Adoption intensity of soil and water conservation practices by smallholders: evidence from Northern Ghana. Bio-based Appl Econ J. 2014;3(2):159–74.
Rahm MR, Huffman WE. The adoption of reduced tillage: the role of human capital and other variables. Am J Agric Econ. 1984;66(4):405–13.
Gould BW, Saupe WE, Klemme RM. Conservation tillage: the role of farm and operator characteristics and the perception of soil erosion. Land Econ. 1989;65(2):167–82.
Clay D, Reardon T, Kangasniemi J. Sustainable intensification in the highland tropics: Rwandan farmers’ investments in land conservation and soil fertility. Econ Dev Cult Change. 1998;46(2):351–77.
Traoré N, Landry R, Amara N. On-farm adoption of conservation practices: the role of farm and farmer characteristics, perceptions, and health hazards. Land Econ. 1998;74(1):114–27.
Mutyasira V, Hoag D, Pendell D. The adoption of sustainable agricultural practices by smallholder farmers in Ethiopian highlands: an integrative approach. Cogent Food Agric. 2018;4(1):1552439.
Thiaw I, Kumar P, Yashiro M, Molinero C. Food and ecological security: identifying synergy and trade-offs. UNEP Policy Series. 2011;1–12.
Pascual U, Muradian R, Brander L, Gómez-Baggethun E, Martín-López B, Verma M, Eppink F. The economics of valuing ecosystem services and biodiversity. 2010. http://africa.teebweb.org/wp-content/uploads/2013/04/D0-Chapter-5-The-economics-of-valuing-ecosystem-services-and-biodiversity.pdf. Accessed 28 Aug 2018.
Costanza R, de Groot R, Sutton P, van der Ploeg S, Anderson SJ, Kubiszewski I, Turner RK. Changes in the global value of ecosystem services. Glob Environ Change. 2014;26:152–8.
Constanza R, deGroot R, d’Arge RR, Farber S, Grasso M, Hannon B, Limburg K, Naeem S, O’Neill RV, Paruelo J, Raskin RG, Raskin RG, Sutton P, van den Belt M. The value of the world’s ecosystem services and natural capital. Nature. 1997;387:253–60.
Agula C. Assessing ecosystem-based farm management practices in the Kassena-Nankana area: a study of government and community managed irrigation schemes. Ghana: UDS space; 2016.
Armah RN, Al-Hassan RM, Kuwornu JK, Osei-Owusu Y. What influences farmers’ choice of indigenous adaptation strategies for agrobiodiversity loss in Northern Ghana? Br J Appl Sci Technol. 2013;3(4):11–62.
Nkegbe PK, Shankar B. Adoption intensity of soil and water conservation practices by smallholders: evidence from northern Ghana. Bio-based Appl Econ. 2014;3(2):159–74.
Dittoh S, Bhattarai M, Akuriba MA. Micro irrigation-based vegetable farming for income, employment and food security in West Africa. New York: Nova Science Publishers, Inc; 2013. p. 177–200.
Simpson DR. The “ecosystem service framework”: a critical assessment. Nairobi: Ecosystem Services Economics Unit, UNEP Publications; 2011.
Barbier EB, Baumgärtner S, Chopra K, Costello C, Duraiappah A, Hassan R, et al. The valuation of ecosystem services. Biodiversity, ecosystem functioning, and human wellbeing. An ecological and economic perspective. New York: Oxford University Press; 2009. p. 248–62.
Fisher B, Bateman I, Turner RK. Valuing ecosystem services: benefits, values, space and time. 2011. http://bioecon-network.org/pages/UNEP_publications/03%20Valuing%20Ecosystem%20Services.pdf. Accessed 28 Aug 2018.
Gómez-Baggethun E, Ruiz-Pérez M. Economic valuation and the commodification of ecosystem services. Prog Phys Geogr. 2011;35(5):613–28.
Rasul G, Chettri N, Sharma E. Framework for valuing ecosystem services in the Himalayas. Patan: International Centre for Integrated Mountain Development (ICIMOD); 2011.
Mendelsohn R, Olmstead S. The economic valuation of environmental amenities and disamenities: methods and applications. Annu Rev Environ Resour. 2009;34:325–47.
King DM, Mazzotta MJ. Contingent Valuation Method. 2000. http://www.ecosystemvaluation.org/contingent_valuation.htm. Accessed 28 Aug 2018.
Dinye R. Irrigated agriculture and poverty reduction in Kassena Nankana district in the upper-east region, Ghana. J Sci Technol. 2013;33(2):59–72.
Mooleki P, Recksiedler B. Benefits of including legumes in your crop rotation. 2009. http://www.agriculture.gov.sk.ca/AGV_0907_4. Accessed 28 Aug 2018.
Slavikova S. 10 benefits of crop rotation in Agriculture. Greentumble. 2018. https://greentumble.com/10-benefits-of-crop-rotation/. Accessed 28 Aug 2018.
Gordon LJ, Finlayson CM, Falkenmark M. Managing water in agriculture for food production and other ecosystem services. Agric Water Manag. 2010;97(4):512–9.
Amusa TA, Enete AA, Okon UE. Willingness to pay for agronomic soil conservation practices among crop-based farmers in Ekiti State, Nigeria. Trends Agric Econ. 2015;8(1):1.
Aydogdu MH, Bilgic A. An evaluation of farmers’ willingness to pay for efficient irrigation for sustainable usage of resources: the GAP-Harran Plain case, Turkey. J Integr Environ Sci. 2016;13(2–4):175–86.
Ghana Statistical Service. 2010 population and housing census. Summary report of final results. Accra. 2012.
Oduro AR, Wak G, Azongo D, Debpuur C, Wontuo P, Kondayire F, Welaga P, Bawah A, et al. Profile of the Navrongo health and demographic surveillance system. Int J Epidemiol. 2012;41(4):968–76.
Bani KB. Farmers’ willingness to pay for environmental services on farmlands and implications for resource governance in Sene East, Ghana. 2016.
Greene WH. Econometric analysis. Delhi: Pearson Education India; 2003.
Kass GV. An exploratory technique for investigating large quantities of categorical data. J R Stat Soc Ser C (Appl Stat). 1980;29(2):119–27.
Marley S. Chi-square automatic interaction detector. Select Statistical Services. 2017. https://select-statistics.co.uk/blog/chaid-chi-square-automatic-interaction-detector/. Accessed 28 Aug 2018.