Local Knowledge of Sediment Exploitation in the Usumacinta River Basin: A Theoretical-Methodological Framework Proposal

According to the United Nations Environmental Program, sand is the second most exploited resource on the planet after water, and local knowledge about the effects of sand mining has been little addressed in international studies. In the case of rivers, the sand and gravel used in the construction industry are part of the fluvial sediments, and the effects are different at each exploitation site. In this article, we propose a theoretical-methodological framework of the sandy field of forces for the study of the socioenvironmental aspects related to the extraction of sand and gravel at the site known as La Isla, located in the Usumacinta River Basin in Mexico. This site has specific environmental and social characteristics. Based on the results of our participation in a research project and, subsequently, on the theoretical, conceptual, and methodological thinking for the social analysis of this site, our model demonstrates how the environmental and anthropic systems converge upon the use of sediments. We conclude that social interactions articulate the conditions of the specific context. The sandy field of forces is the reference context in which the local practices of the actors regarding the use of sand and gravel make sense.