Organo Mineral Interaction
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. Chemical and Spectroscopic Characteristics of Anthrosol (Amazonian Dark Earth) and Surrounding Soil from the Brazilian Amazon Forest: Evaluation of Mineral and Organic Matter Content by Depth
The chemical and spectroscopic characteristics of soil organic matter (SOM) isolated from Amazonian dark earth (ADE) and surrounding soil (SR) were evaluated according to the soil depth. The results showed opposite trends for the soils. While ADE featured SOM with a greater aromatic condensation degree and greater hydrophobicity in the top layer, the SR show
J. Braz. Chem. Soc.. Publicado em: 2020-08
-
2. Aggregate Stability in Soil with Humic and Histic Horizons in a Toposequence under Araucaria Forest
ABSTRACT Aggregate stability is one of the most important factors in soil conservation and maintenance of soil environmental functions. The objective of this study was to investigate the aggregate stability mechanisms related to chemical composition of organic matter in soil profiles with humic and histic horizons in a toposequence under Araucaria moist fore
Rev. Bras. Ciênc. Solo. Publicado em: 2017
-
3. Carbon sequestration in clay and silt fractions of Brazilian soils under conventional and no-tillage systems
The capacity of soils to sequestrate carbon (C) is mainly related to the formation of organo-mineral complexes. In this study, we investigated the influence of soil management systems on the C retention capacity of soil with an emphasis on the silt and clay fractions of two subtropical soils with different mineralogy and climate. Samples from a Humic Hapludo
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-08
-
4. Solos subtropicais de altitude: atributos químicos, teor de matéria orgânica e resistência à oxidação química
Neste trabalho foram estudadas amostras de horizontes A de oito solos representativos da região Campos de Cima da Serra, Rio Grande do Sul, sendo determinados: textura, pH em água, CTC a pH 7, teores de Al trocável e de óxidos de Fe (Fed e Feo). As amostras foram tratadas com peróxido de hidrogênio e, antes e após tratamento, foram determinados teores
Publicado em: 2010