New archaeological studies in our archipelago (and the Caribbean more broadly) have established the possibility that our ecosystems began to be altered 5,500 years ago, perhaps longer. The official history of Puerto Rico is still full of myths about precolonial societies that are reminiscent of what the American geographer William Denevan called in 1992 the myth of the “noble savage” (Denevan 1992). Both this myth and the myth of the “pristine landscapes” are based on colonial narratives that portray indigenous societies in the Americas as incapable of having had any impact on their landscapes.
Iterations of this same narrative proliferated throughout the Americas since the 16th century, and were used to make invisible the ancient presence of indigenous communities and thus justify the forced and violent displacement of their ancestral territories.
In the basins of the Río Grande de Manatí and the Río Grande de Arecibo, there are some of the oldest archaeological sites in our archipelago, from which direct evidence has been obtained of crop processing as well as soil management for different purposes associated with daily life during different times in the precolonial period.
Paleosols (soils that were formed in the past under particular climatic, biotic and social conditions) are a window to our socio-natural past that we can study to understand these ancestral processes. In the coastal alluvial plains of both rivers, a series of paleosols buried in the alluvium have been identified and these are being studied to clarify the impact of precolonial societies on them. These new perspectives serve as a people to recognize new ways of relating to the landscape, to better understand our social and natural history, as well as to propose measures for the sustainability and resilience of our soils, honoring these ancestral processes with greater knowledge.
The jars contain samples of paleosols and alluvium from the Río Grande de Manatí and the Río Grande Arecibo obtained from this study of the stratigraphy and paleosols present in these valleys. The samples were obtained from profiles exposed on the edges of each river and were then processed to date them and study their physical and chemical characteristics, including the study of the predominant ancient vegetation. Se pueden apreciar los paleosuelos en las capas más oscuras del perfil de suelos.