The Impact of Biosolid Application on Soil and Native Plants in a Degraded Brazilian Atlantic Rainforest Soil
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Graduate program
Undergraduate course
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Publisher
Springer
Type
Article
Access right
Acesso aberto
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Abstract
We conducted a field experiment to determine whether application of biosolids (municipal sewage sludge) to degraded areas of the Brazilian Atlantic rainforest had the potential to contaminate native forest species with trace metals in the sandy soils of the region. Treatments consisted of 0, 2.5, 5, 10, 15, and 20 dry Mg biosolids ha(-1), with nine native pioneer, secondary, and climax tree species assessed for metal uptake: capixingui, aroeira-pimenteria, canafistula, cedro-rosa, mutamba, angico-vermelho, copaiba, jatoba, and jequitiba. Biosolid application did not have a statistically significant effect on metal concentrations in soil, and Cd was the only metal with increased availability. No increased metal uptake was seen in tree foliage sampled at 6 and 12 months after application. Additional longer-term study is recommended; however, the results of this study indicate biosolids could be used in Atlantic rainforest reclamation in degraded sandy soils with little impact on soil accumulation and tree uptake of trace metals.
Description
Keywords
Sewage sludge, Heavy trace metals, Typic Quartzipsamment, Residuals reuse
Language
English
Citation
Water Air And Soil Pollution. Dordrecht: Springer, v. 227, n. 1, 9 p., 2016.
