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Desertification–Scientific Versus Political Realities

Author

Listed:
  • Geert Sterk

    (Department of Physical Geography, Faculty of Geosciences, Utrecht University, 3584 CB Utrecht, The Netherlands)

  • Jetse J. Stoorvogel

    (Soil Geography and Landscape Group, Wageningen University, 6708 PB Wageningen, The Netherlands)

Abstract

Desertification is defined as land degradation occurring in the global drylands. It is one of the global problems targeted under the Sustainable Development Goals (SDG 15). The aim of this article is to review the history of desertification and to evaluate the scientific evidence for desertification spread and severity. First quantitative estimates of the global extent and severity of desertification were dramatic and resulted in the establishment of the UN Convention to Combat Desertification (UNCCD) in 1994. UNCCD’s task is to mitigate the negative impacts of desertification in drylands. Since the late 1990s, science has become increasingly critical towards the role of desertification in sustainable land use and food production. Many of the dramatic global assessments of desertification in the 1970s and 1980s were heavily criticized by scientists working in drylands. The used methodologies and the lack of ground-based evidence gave rise to critical reflections on desertification. Some even called desertification a myth. Later desertification assessments relied on remote sensing imagery and mapped vegetation changes in drylands. No examples of large areas completely degraded were found in the scientific literature. In science, desertification is now perceived as a local feature that certainly exists but is not as devastating as was earlier believed. However, the policy arena continues to stress the severity of the problem. Claims that millions of hectares of once productive land are annually lost due to desertification are regularly made. This highlights the disconnection between science and policy, and there is an urgent need for better dialogue in order to achieve SDG 15.

Suggested Citation

  • Geert Sterk & Jetse J. Stoorvogel, 2020. "Desertification–Scientific Versus Political Realities," Land, MDPI, vol. 9(5), pages 1-18, May.
  • Handle: RePEc:gam:jlands:v:9:y:2020:i:5:p:156-:d:359490
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    References listed on IDEAS

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    1. United Nations, 2016. "The Sustainable Development Goals 2016," Working Papers id:11456, eSocialSciences.
    2. Le, Quang Bao & Nkonya, Ephraim & Mirzabaev, Alisher, 2014. "Biomass Productivity-Based Mapping of Global Land Degradation Hotspots," Discussion Papers 177961, University of Bonn, Center for Development Research (ZEF).
    3. Eric Neumayer, 2013. "Weak versus Strong Sustainability," Books, Edward Elgar Publishing, number 14993.
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    Cited by:

    1. Jetse J. Stoorvogel & Vera L. Mulder, 2021. "A Comparison, Validation, and Evaluation of the S-world Global Soil Property Database," Land, MDPI, vol. 10(5), pages 1-19, May.
    2. Salvati, Luca, 2023. "Two wrongs don't make a right: A multi-step decomposition of latent dimensions of sustainable development and desertification risk in Italy," Ecological Economics, Elsevier, vol. 212(C).
    3. Tomasz Daszkiewicz, 2022. "Food Production in the Context of Global Developmental Challenges," Agriculture, MDPI, vol. 12(6), pages 1-11, June.
    4. Jaime Martínez-Valderrama & Emilio Guirado & Fernando T. Maestre, 2020. "Unraveling Misunderstandings about Desertification: The Paradoxical Case of the Tabernas-Sorbas Basin in Southeast Spain," Land, MDPI, vol. 9(8), pages 1-12, August.

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