Wednesday, February 21, 2024

Amazonian Agriculturalists Created ‘Terra Preta’ Thousands of Years Ago

 From  Ancient Origins:

A fascinating body of research has revealed how intimately our ancestors were connected to the earth – specifically, ancient Amazonians, who intentionally created a fertile dark earth or ‘terra preta’. The study has found that despite the highly acidic and low nutritional content of the Amazonian soil for agricultural purposes, ancient humans intentionally modified the environment around former human settlements to allow their expansion. This study published in Sciences Advances, was led by researchers at MIT, the University of Florida, and institutions in Brazil. In the past, while conducting research in a region of the Amazon inhabited by the Kuikuro people, a team of researchers led by anthropologist Michael Heckenberger from the University of Florida, alongside Morgan Schmidt, who was a graduate student at the time, discovered that these communities utilize sophisticated agricultural methods. One such technique involves the establishment of centralized middens—accumulations of waste that break down over time, enriching the soil, which in turn supports crop cultivation. The researchers essentially helped address a longstanding debate about intentionality – was this dark earth, known as ‘terra preta’, an inadvertent byproduct of certain practices, or very intentional? This study helped confirm that these practices were very much intentional. (Read more.)
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