Histosols
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Characteristics of Soils in Highland Wetlands as a Subsidy to Identifying and Setting their Limits
ABSTRACT Palustrine areas and wetlands in particular are fragile ecosystems, with high biodiversity and high ecological productivity, and they provide benefits to society. The aim of this study was to describe and classify the main soils occurring in the wetlands of the Southern Plateau of Santa Catarina, and propose criteria for identification of hydromorph
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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2. Bulk Density Prediction for Histosols and Soil Horizons with High Organic Matter Content
ABSTRACT Bulk density (Bd) can easily be predicted from other data using pedotransfer functions (PTF). The present study developed two PTFs (PTF1 and PTF2) for Bd prediction in Brazilian organic soils and horizons and compared their performance with nine previously published equations. Samples of 280 organic soil horizons used to develop PTFs and containing
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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3. Histosols in an Upper Montane Environment in the Itatiaia Plateau
ABSTRACT: Highland environments favor accumulation and preservation of soil organic matter (SOM) due to low temperatures, leading to the formation of Histosols. The Itatiaia National Park (INP), Rio de Janeiro, Brazil, offers conditions for preservation of SOM deposited over time, which has led to the formation of these soils. The objective of this study was
Rev. Bras. Ciênc. Solo. Publicado em: 15/12/2016
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4. Comparing Methods for Extracting Heavy Metals from Histosols for Establishing Quality Reference Values
ABSTRACT The diversity of methods for heavy metal extraction from soils complicates comparison of results used by environmental agencies to establish quality reference values. The aim of this study was to evaluate three soil digestion methods regarding the solubilizing capacity of Ba, Cr, Cu, Fe, Mn, Ni, Pb and Zn, and to propose a standard method to establi
Rev. Bras. Ciênc. Solo. Publicado em: 03/11/2016
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5. Structure of the tree stratum of three swamp forest communities in southern Brazil under different soil conditions
Restinga forests are commonly known to be plant communities rather poor in tree species. This study aimed to describe and explain the association between the floristic-structural similarities and the environmental conditions in three Swamp Restinga Forest communities in southern Brazil. In 13 plots of 100 m2 each, we sampled all individual trees (circumfere
Acta Bot. Bras.. Publicado em: 2015-03
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6. GÃnese e classificaÃÃo de solos em ambientes de planÃcies da regiÃo Nordeste do Brasil / Genesis and classification of soils from lowland environments in the Northeast region, Brazil
Solos formados por sedimentos em ambientes de planÃcie apresentam caracterÃsticas genÃticas distintas quanto ao material de origem, podendo ser compostos basicamente por sedimentos minerais e orgÃnicos. O primeiro à formado a partir do intemperismo das rochas, e as propriedades quÃmicas, fÃsicas e mineralÃgicas sÃo herdadas do material que lhe deram
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012
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7. Prokaryotic communities of acidic peatlands from the southern Brazilian Atlantic Forest
The acidic peatlands of southern Brazil are ecosystems essential for the maintenance of the Atlantic Forest, one of the 25 hot-spots of biodiversity in the world. In this work, we investigated the composition of prokaryotic communities in four histosols of three acidic peatland regions by constructing small-subunit (SSU) rRNA gene libraries and sequencing. S
Brazilian Journal of Microbiology. Publicado em: 2012-06
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8. Características estruturais da matéria orgânica em Organossolos Háplicos. Seropédica: UFRRJ, 2010 / Structural characteristics of organic matter in Histosols. Seropédica: UFRRJ, 2010
Os Organossolos têm pequena representatividade geográfica no Brasil, entretanto, são utilizados intensamente em modelos de agricultura familiar e têm grande importância ambiental. Porém, a sua drenagem conduz ao processo de subsidência e outras modificações na matéria orgânica do solo (MOS), com implicações nas características dos Organossolos
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2010
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9. Pedological, isotopical and palinological relations in the paleoenvironmental reconstruction of the Pau-de Fruta special protection area´s peat bog, Mountain Range of the Southern Espinhaço - MG / Relações pedológicas, isotópicas e palinológicas na reconstrução paleoambiental da turfeira da Área de Proteção Especial (APE) Pau-de-Fruta, Serra do Espinhaço Meridional - MG
As turfeiras são ambientes especiais para estudos que procuram compreender a evolução das paisagens em função de mudanças climáticas, apresentando registros da dinâmica temporal e espacial da vegetação, constituindo-se de organossolos com grande potencial indicador devido aos elevados teores de carbono e um ambiente anóxico, condições que preser
Publicado em: 2010
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10. Relação solo-relevo-substrato geológico na planíce costeira de Bertioga (SP) / Soil-relief-geologic substract relationship on the coastal plain of Bertioga (SP)
Knowledge of the chronology, relief, geology and soils in sedimentary coastal environments is relevant for their interpretation, reconstitution and conservation. In Bertioga, São Paulo State Brazil, several sections of the Pleistocene and Holocene morphostratigraphic costal plain units are preserved in the landscape. This thesis seeks the perception of the
Publicado em: 2009
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11. Chemical and spectroscopic characterization of organic matter in Brazilian soils / Caracterização química e espectroscópica da matéria orgânica em solos do Brasil
The importance on the study of organic matter in pedology and soil classification studies in tropical regions can be substantiated by the differential attributes: organic carbon content, degree of organic matter decomposition, and fibers content. However, quantitative and qualitative variables such as chemical fractionating of organic matter and spectroscopi
Publicado em: 2006
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12. Caracterização analítica da acidez em organossolos / Analytical characterization of acidity in Histosols.
Os Organossolos têm pequena extensão territorial no Brasil, mas são de elevada utilização agrícola, principalmente agricultura de subsistência, e têm grande importância ambiental. Os teores elevados de matéria orgânica nestes solos exercem papel fundamental em todas as propriedadades edáficas. No que se refere às químicas, o pH e a acidez dos O
Publicado em: 2006