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vol.3 issue3Phytogeographic support tor the theory of Pleistocene forest refuges in the Amazon Basin, based on evidence from distribution patterns in Caryocaraceae, Chrysobalanaceae, Dichapetalaceae and LecythidaceaeÓleos essenciais da Amazônia. VI author indexsubject indexarticles search
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Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Acta Amaz. vol.3 no.3 Manaus Dec. 1973 


Energy flow analysis and the study of Manihot esculenta Crantz

Emilio F. Morán1 

1University of Florida Gainesville (U.S.A.)


This paper makes use of energy flow language. It discusses how this energetics approach can be useful in research having to do with the interactions between man and the environment. All life processes have energy as their common denominator. The paper shows how this methodological approach aids in field preparation, organizes research while in the field and helps in the analysis of data. A discussion of manioc as an essential plant for man in the tropics is presented, and the myths surrounding the plant are indicated and recent research finds put in context. The potential of manioc as a food of the future is presented and suggestions are made for an energetics approach to the plant in situ. The plant's potential needs to be studied in the context of the real world in which tropical man utilizes it. Energetic models are presented as guides to the study of the plant as a system producing food.


A importância da mandioca como alimento essencial do homem no trópico é discutida, considerando-se não só os mitos, mas também recentes fatos científicos. O estudo do fluxo de energia é feito com vistas às necessidades potenciais da planta no contexto do mundo real onde o homem a utiliza. Modelos energéticos são apresentados como guias para o estudo da planta como um sistema produtor de alimento, e demonstrando como esta metodologia pode auxiliar na organização de pesquisas e na análise de resultados.

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