De Plantas, Peixes E Parentes: Técnica E Cosmologia No Debate Sobre a Pesca Com Timbó Entre Os Wapichana Na Região Serra Da Lua, Roraima

Oliveira, Alessandro Roberto de

doi:10.18542/amazonica.v7i1.2149

Cited by 2 publications

(2 citation statements)

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“…Usually, roças are cultivated for a maximum of 2 or 3 years – except for some areas of greater fertility with banana plantations that are eventually used for a longer time, up to 10 years. After the cultivation stage, the site is left for the growth of capoeira (period of fallow), when natural vegetation (secondary forest) regenerates (Machado & Pinho, 2020; Oliveira & Vale, 2014; Pinho et al, 2021).…”

Section: Methodsmentioning

confidence: 99%

Soil fertility in indigenous swidden fields and fallows in northern Amazonia, Brazil

Pinho

Pequeno

Alfaia

et al. 2023

Soil Use and Management

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In the northern Brazilian Amazon, indigenous peoples who inhabit the savannas of Roraima, plant their crop fields in frequently managed “forest islands” using a rotating “slash‐and‐burn” system. The system advocates long‐term sustainability, but population growth and threats to indigenous lands have led to shorter rotations and greater frequency of use of forest island areas. Our objective was to examine soil texture and fertility (0–20 cm in depth) in indigenous crop fields (roças) and fallow lands (capoeiras, secondary forests), generating recommendations that may help to optimize traditional soil management. Results indicated that roça sites are less acidic than capoeira sites, which was expected as ashes produced by burning are alkalizing, but acidity did not increase again after 8 months of cultivation, and pH was high in all sites (>6). The general increase in nutrients expected in roças compared with capoeiras did not occur. The expected decrease of soil fertility after first months of cultivation did not happen, nor the increase of soil fertility according to fallow length. Overall, soil texture proved to be the main determinant of fertility. The unexpected results suggest that the edaphic processes resulting from the traditional indigenous cultivations, practised for centuries or millennia in this region, likely contributed to the current stabilization of soil acidity and fertility. The stable moderate fertility and stable high pH observed in all sites are advantages for production in slash‐and‐burn systems in this region, and this is especially important for more pressured areas, where agroecological practices could improve soil use and management. Although not determinant for soil fertility recovery at the studied depth (0–20 cm), the fallow period (growth of capoeiras) is still important for recovery of environmental and social functions of forest islands.

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Section: Methodsmentioning

confidence: 99%

Soil fertility in indigenous swidden fields and fallows in northern Amazonia, Brazil

Pinho

Pequeno

Alfaia

et al. 2023

Soil Use and Management

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“…The circulation of these cuttings is an important aspect of the 1 Human-plant relation were a recurring theme during my fieldwork. Initially, I sought to understand the daily, contentious use of poisonous plants as a fishing technique (Oliveira 2015). More recently, I studied ways of acting related to a category of plants in aggressive shamanic practice (Oliveira 2018).…”

Section: Introductionmentioning

confidence: 99%

Manioc-stem transects: vital flows, technical processes and transformations

Oliveira

2019

Vibrant, Virtual Braz. Anthr.

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This article studies human-plant relations as technical phenomena in the context of the pluriethnic communities of the border between Brazil and Guyana. It proposes that we consider a technogenesis of the social at the intersection of technical processes and vital flows of manioc stems - the overground part of the plant that produces manioc (Manihot esculenta). Its starting point is a Wapichana agriculturalist’s collection of stem segments. The onomastics of this set provides an idea of the diversity of these plants in the region. However, the article argues that, rather than being referents in a closed classificatory system, names are histories, indexes of ways of knowing and processes of individuation of people and varieties. By emphasising processes of stem manipulation, the article discusses some of the methodological challenges of the ethnography of technique and reflects on contemporary social transformations in dialogue with Indigenous analyses.

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De Plantas, Peixes E Parentes: Técnica E Cosmologia No Debate Sobre a Pesca Com Timbó Entre Os Wapichana Na Região Serra Da Lua, Roraima

Cited by 2 publications

References 1 publication

Soil fertility in indigenous swidden fields and fallows in northern Amazonia, Brazil

Soil fertility in indigenous swidden fields and fallows in northern Amazonia, Brazil

Manioc-stem transects: vital flows, technical processes and transformations

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