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Can Conservation Agriculture Save Tropical Forests? The Case of Minimum Tillage in Zambia

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  • Ngoma, Hambulo
  • Angelsen, Arild

Abstract

Minimum tillage (MT) is a key component in the promotion of conservation agriculture (CA). This paper asks whether MT reduces cropland expansion and thus deforestation. We develop a simple theoretical household model of land expansion, and test hypotheses by estimating a double hurdle model using household survey data from 368 smallholders in rural Zambia. We find that about 19% of the farmers expanded cropland into forests, clearing an average of 0.14 ha over one year. Overall, MT adoption does not significantly reduce deforestation among households in our sample, while labor availability stimulate expansion. Yield augmenting agricultural technologies (such as MT) may not reduce expansion unless combined with other forest conservation measures.

Suggested Citation

  • Ngoma, Hambulo & Angelsen, Arild, 2019. "Can Conservation Agriculture Save Tropical Forests? The Case of Minimum Tillage in Zambia," Feed the Future Innovation Lab for Food Security Policy Research Papers 303055, Michigan State University, Department of Agricultural, Food, and Resource Economics, Feed the Future Innovation Lab for Food Security (FSP).
    • Handle: RePEc:ags:miffrp:303055
    DOI: 10.22004/ag.econ.303055
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    Keywords

    Food Security and Poverty; International Development;

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