Knowledge for better food systems

Cost-benefit analysis of climate-smart agriculture practices

Image: edward musiak, coconut farm, Flickr, Creative Commons Attribution-ShareAlike 2.0 Generic

This paper performs a cost-benefit analysis for various climate-smart agriculture practices on farms in Vietnam, Nicaragua and Uganda, including switching annual to perennial crops (e.g. coconut), crop rotations, using organic fertiliser and intercropping maize and beans.

In Vietnam, the most profitable practice (measured by net present value) was a rotation of rice and peanuts; in Nicaragua, it was shading cocoa crops; in Uganda, it was intercropping beans and improved maize varieties in conjunction with residue retention.

The study notes that the extent to which farmers may benefit from adopting a climate-smart agriculture practice depends on their income level and the initial investment required.

 

Abstract

Recent studies highlight a growing concern over the limited adoption of climate smart agricultural (CSA) practices despite their potential benefits on adaptation, mitigation and productivity. Literature indicates several factors behind the lack of adoption including socio-demographic and economic conditions, agro-ecological scales and the nature of the practices. This paper examines to what extent and under which conditions such factors influence the adoption of CSA practices at farm, household and community level across three study sites in different continents: Vietnam, Nicaragua and Uganda. While cost benefit analysis (CBA) is employed to assess the farm-level profitability of CSA practices, the aggregate community impact disaggregated by different groups of farmer typologies with specific socio-economic features is derived from the adoption rate estimated by the relative advantage of practices and the income level of each group. Our main findings show great variation of farm-profitability of CSA practices across scales. Similar practices could generate different profitability depending on crop typologies, input access and prices, household types and local context. Regarding the aggregate profitability of CSA practices at regional scale, we found that under particular conditions, relevant factors of adoption matter to the adoption pattern and thereby affects the ranking. Such conditions include (i) high income inequality, (ii) large profitability gap of prioritized CSA practices, and (iii) large proportion of cost and benefit of the practices in the level of income. This study contributes to enhancing the prioritization process of CSA practices and provides practical guidance for research and policy to tailor the investment to appropriate end-users to assure the greatest impact for the community.

 

Reference

Lan, L., Sain, G., Czaplicki, S., Guerten, N., Shikuku, K.M., Grosjean, G. and Läderach, P., 2018. Farm-level and community aggregate economic impacts of adopting climate smart agricultural practices in three mega environments. PloS one, 13(11), p.e0207700.

Read the full paper here. See also the Foodsource resource How can we reduce food-related greenhouse gas emissions?

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Asia

Asia is Earth's largest and most populous continent. It hosts many densely populated and large cities as well as enormous barely populated regions, which all together host over half of the human population. Agriculture as a source of income is of major importance in the region. In most Asian countries, agriculture is the biggest user of water and in some regions can be responsible for to 90% of total water consumption through irrigation.

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