A synergy between the biophysical and the economic: the global market impacts of soil erosion
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Date
2019
Authors
Sartori, MartinaPhilippidis, George
Ferrari, Emanuele
Borrelli, Pasquale
Lugato, Emanuele
Panagos, Panos
Montanarella, Luca
Journal Title
Journal ISSN
Volume Title
Publisher
FAO
Typology
Proceedings PaperArticle
Abstract
Employing a linkage between a biophysical and an economic model, this study estimates the economic
impact of soil erosion by water on the world economy. The global biophysical model estimates soil erosion
rates, which are converted into land productivity losses and subsequently inserted into a global market
simulation model. The headline result is that soil erosion by water is estimated to incur a global annual cost
of eight billion US dollars to global GDP. The concomitant impact on food security is to reduce global agrifood
production by 33.7 million tonnes with accompanying rises in agri-food world prices of 0.4 % to 3.5 %,
depending on the food product category. Under pressure to use more marginal land, abstracted water
volumes are driven upwards by an estimated 48 billion cubic meters. Finally, there is tentative evidence that
soil erosion is accelerating the competitive shifts in comparative advantage on world agri-food markets
Description
Keywords
Bibliographic citation
Global Symposium on Soil Erosion Stop soil erosion. Save our future. Roma, 15 - 17 Mayo 2019
AGROVOC subjects
Análisis económicoErosión por el agua
Productividad de la tierra
Modelos econométricos