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Provedor de dados:  Anais da ABC (AABC)
País:  Brazil
Título:  Stonemeal of amazon soils with sediments from reservoirs: a case study of remineralization of the tucuruí degraded land for agroforest reclamation
Autores:  THEODORO,SUZI H.
LEONARDOS,OTHON H.
ROCHA,EDUARDO
MACEDO,IRIS
REGO,KLEYSSON G.
Data:  2013-03-01
Ano:  2013
Palavras-chave:  Geochemistry
Sediments
Reservoir
Agroforestry
Sustainable development
Resumo:  This study suggests the employment of accumulated sediments in the reservoir of Tucuruí (Pará /Brazil) to remineralize the surrounding degraded soils. The approach was based on the principles of stonemeal technology. It suggests that the soil can be rejuvenated by crushed rocks rich in macro and micronutrients. Removal of the sediments for agricultural use will bring benefits to family farmers and increase the life cycle of the reservoir and, therefore, energy generation. Geochemical data on retained sediments, soils and rocks in the area of influence of the reservoir were evaluated regarding nutrient transport mechanisms and soil-fertility potential. Results show that sediments from the reservoir contain nutrients levels at least one order of magnitude greater than average Amazon region soils. Our data on soil use and occupation in the region show the degradation areas which could be recovered by stonemeal techniques. Thence, an Agroforestry System was installed, with 12 plots where different mixtures of sediments removed from the reservoir were used, along with crushed rock with or without the addition of NPK and manure. The experiments showed that maximum crop yield and plant growth were attained in the plots where a mixture of sediments, crushed rocks and manure were added.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000100023
Editor:  Academia Brasileira de Ciências
Relação:  10.1590/S0001-37652013000100003
Formato:  text/html
Fonte:  Anais da Academia Brasileira de Ciências v.85 n.1 2013
Direitos:  info:eu-repo/semantics/openAccess
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