Resumo

BOLANOS GONZALEZ, Martín A. et al. Erosion map of Mexico soils and its possible implications for soil organic carbon pool. Terra Latinoam [online]. 2016, vol.34, n.3, pp.271-288. ISSN 2395-8030.

Because of the limited availability of information worldwide and markedly in Mexico on the phenomenon of soil erosion, this paper presents the National Map of Erosion with a scale of 1:50 000. This map consolidates several years of work for which it was necessary to combine several sources of information: techniques of photo interpretation of high-resolution satellite images, specialized mapping and field information. It includes basic information required for a second stage, in which it will be possible to estimate general losses of soil organic carbon to erosion, one of the least studied components and, thus, the least quantified in the general carbon balance. This first result reveals that 76% of the national territory has some degree of evident water erosion: 6.79% extreme, 5.79% severe, 37.06% moderate and 26.37% light erosion. The states most affected by significant erosion (relative area) are Federal District, Tlaxcala, State of Mexico and Michoacán, and conversely, the least affected are Tabasco, Quintana Roo and Campeche.

Palavras-chave : water erosion; soil organic carbon; soil degradation.

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