Ng'ang'a Stanley Karanja, Miller Vail, Girvetz Evan
International Centre for Tropical Agriculture (CIAT), P. O. Box 6247, Kampala, Uganda.
International Center for Tropical Agriculture (CIAT), P. O. Box 6713, Cali, Colombia.
Heliyon. 2021 Apr 8;7(4):e06653. doi: 10.1016/j.heliyon.2021.e06653. eCollection 2021 Apr.
A majority of smallholder farmers in sub-Saharan Africa (SSA) countries depend to a large extent on agriculture for food security and income. Efforts aimed at improving farm-related profitability are therefore important to improving livelihoods among smallholder farmers. In Ghana, for example, smallholder farmers that depend on agriculture face serious risks especially those related to climate change and variability and soil degradation. Notwithstanding these dangers, evidence of the published literature on how best to tackle these challenges is limited. Over the recent decades, however, there has been advancement by programs channelling resources into Climate-Smart Agricultural (CSA) practices to improving smallholder livelihoods and food security. The interest in advancing investment in CSA practices is a key pathway that has the potential to significantly reduce the negative effect of climate change and variability risks on smallholder farmers livelihoods. Investing in CSA practices is also a key pathway to improving farm yield per unit area. Consequently, smallholder farmers are adopting and implementing CSA practices. Despite that, a gap still exists on the profitability of undertaking such an investment, as this is key in determining the sustainability of CSA practices. On this basis, the present study undertook a detailed cost-benefit analysis (CBA) of seven CSA practices identified with smallholder farmers in the coastal savannah agro-ecological zone of Ghana. A total of 48 smallholder farmers that had adopted these practices were studied. Three CBA indicators namely the net present value (NPV), internal rate of return (IRR) and payback period (PP) were assessed for each of the seven CSA practices. The results showed that out of the seven CSA practices examined, six of them were profitably suitable for adoption and scaling up from the perspective of smallholder farmers as well as the public perspective. The finding from this study, therefore, fill the current information gap in the literature on the costs and benefits of adopting CSA practices on household livelihoods in Ghana. Such a finding is critical to the promotion and scaling up the adoption of CSA practices by smallholder farmers and serve as a basis of formulating appropriate guidelines and policies for supporting CSA practices.
撒哈拉以南非洲(SSA)国家的大多数小农户在很大程度上依赖农业来保障粮食安全和获取收入。因此,旨在提高农业相关盈利能力的努力对于改善小农户的生计至关重要。例如,在加纳,依赖农业的小农户面临严重风险,尤其是与气候变化和变率以及土壤退化相关的风险。尽管存在这些危险,但已发表的关于如何最好地应对这些挑战的文献证据有限。然而,在最近几十年里,通过将资源投入气候智能型农业(CSA)实践的项目取得了进展,以改善小农户的生计和粮食安全。推进对CSA实践的投资的兴趣是一条关键途径,有可能显著降低气候变化和变率风险对小农户生计的负面影响。投资于CSA实践也是提高单位面积农场产量的关键途径。因此,小农户正在采用和实施CSA实践。尽管如此,进行这种投资的盈利能力方面仍然存在差距,因为这是决定CSA实践可持续性的关键。在此基础上,本研究对加纳沿海稀树草原农业生态区小农户采用的七种CSA实践进行了详细的成本效益分析(CBA)。共研究了48户采用这些实践的小农户。对七种CSA实践中的每一种都评估了三个CBA指标,即净现值(NPV)、内部收益率(IRR)和回收期(PP)。结果表明,在所研究的七种CSA实践中,从小农户以及公共角度来看,其中六种在经济上适合采用和扩大规模。因此,本研究的结果填补了目前文献中关于加纳家庭生计采用CSA实践的成本和效益方面的信息空白。这一发现对于促进和扩大小农户采用CSA实践至关重要,并可作为制定支持CSA实践的适当指导方针和政策的基础。