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| Sausen,Tanise Luisa; Schaefer,Guilherme Frederico de Paula; Tomazi,Michely; Santos,Lívia Scheunemann dos; Bayer,Cimélio; Rosa,Luís Mauro Gonçalves. |
| Soil carbon accumulation is largely dependent on net primary productivity. To our knowledge, there have been no studies investigating the dynamics of carbon accumulation in weathered subtropical soils, especially in managed eucalyptus plantations. We quantified the seasonal input of leaf litter, the leaf decomposition rate and soil carbon stocks in an commercial plantation of Eucalyptus saligna Labill. in southern Brazil. Our goal was to evaluate, through multiple linear regression, the influence that certain chemical characteristics of litter, as well as chemical and physical characteristics of soil, have on carbon accumulation in soil organic matter fractions. Variables related to the chemical composition of litter were not associated with the soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weathered soils; Decomposition; Soil organic matter fractions; Litter input. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000200013 |
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| Nin, Cecília Schuler; UFRGS; Ruppenthal, Eduardo Luiz; UFRGS; Rodrigues, Gilberto Gonçalves; UFRGS. |
| The aim of the study was to verify the temporal variation of allochthonous material input into a stream, and which structures contribute to the organic material pool, as well as to analyze the occurrence of macroinvertebrates associated with the litter. Samples were taken from October, 2004 to October, 2005 in two transects along the riparian zone. At each transect, three sampling stations were chosen. At each one, submersed and suspended collectors (1.5 m above bottom) were installed. Input and retention of coarse benthic organic material were analyzed and classified as flowers and diaspores, (seeds and fruits) and vegetative structures (leaves and branches). There were no statistical differences between input of material in suspended and submersed... |
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Palavras-chave: Allocthonous organic material; Litter input; Headwater stream; Aquatic macroinvertebrates 2.00.00.00-6 Ciências Biológicas matéria orgânica alóctone; Produção primária; Riachos; Macroinvertebrados aquáticos. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/355 |
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