La genèse des podzols

Courchesne, François; Hendershot, William H.

doi:10.7202/033121ar

Cited by 12 publications

(5 citation statements)

References 121 publications

(96 reference statements)

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“…the mobilization of humus and sesquioxides in the topsoil of acidic soils, and their precipitation in a B horizon, are built up of three non-exclusive processes (e.g. Browne, 1995;Courchesne and Hendershot, 1997;Lundström et al, 2000):…”

Section: Introduction: Conflicts Between Theory and Observationmentioning

confidence: 99%

Podzolisation and soil organic matter dynamics

2005

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Section: Introduction: Conflicts Between Theory and Observationmentioning

confidence: 99%

Podzolisation and soil organic matter dynamics

2005

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“…Em geral, os Espodossolos são encontrados mais freqüentemente em regiões sob clima boreal e vegetação de coníferas do hemisfério norte (Chesworth & Macías, 1985;Courchesne & Hendershot, 1997;Lundström et al, 2000;van Breemen & Buurman, 2002). Fora desse clima, ocorrem em materiais de origem quartzosos e pobres, tanto sob clima temperado como tropical (van Breemen & Buurman, 2002).…”

Section: Introductionunclassified

Solos sob vegetação de restinga na Ilha do Cardoso (SP): I - Caracterização e classificação

Gomes

Vidal‐Torrado

Macı́as

et al. 2007

Rev. Bras. Ciênc. Solo

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RESUMOA vegetação de restinga é uma formação típica que ocorre nas planícies costeiras arenosas da costa brasileira, principalmente sobre solos quartzosos e pobres em nutrientes. Neste trabalho, foram estudados solos sob vegetação de restinga na Ilha do Cardoso (SP), com o objetivo de fornecer subsídios para melhor entendimento de sua gênese e contribuir para o aprimoramento do Sistema Brasileiro de Classificação de Solos (SiBCS). Para isso, realizou-se uma caracterização físico-química e morfológica detalhada desses solos. Os resultados mostraram solos hidromórficos, arenosos, muito ácidos, com teores variáveis de MO, sendo a podzolização o principal processo pedogenético presente. A presença de materiais sulfídricos também ocorre em conseqüência da influência de material subjacente diferenciado, não guardando relação com a podzolização. Os principais fatores que influenciaram a distribuição dos solos foram a idade de estabilização do material de origem e a microtopografia, que reflete a influência do lençol freático. Os Espodossolos estudados são holocênicos e a podzolização é diretamente influenciada pela hidromorfia, sendo este o fator decisivo na gênese do horizonte espódico. O SiBCS mostrou falhas na classificação da ordem Espodossolos a partir do segundo nível categórico (subordem), sobretudo no que diz respeito ao acúmulo de Fe no horizonte espódico. Como a presença de sulfetos pode afetar parte dos solos estudados, se drenados, gerando horizontes sulfúricos, sugere-se a inserção

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“…Mokma and Buurman, 1982;Nierop and Buurman, 1998;Buurman et al, 2008) and beyond (e.g. McKeague et al, 1983;Courchesne and Hendershot, 1997;Lundström et al, 2000;Tyler, 2004), the relative geochemical signatures of the A-, E-and B-horizons can be predicted to a reliable degree (e.g. Courchesne and Hendershot, 1997, 239;Tyler, 2004, 283 11A), which enables us to compare the measured outcomes to such predictions.…”

Section: Zeijen-noordse Veldmentioning

confidence: 99%

The potential of lacquer-peel soil profiles for palaeo-geochemical analysis using XRF analysis

Arnoldussen

2015

CATENA

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This paper discusses the suitability of hand-held XRF analysis to extract palaeo-geochemical information from lacquer-peel soil sections that have been taken to document pedological information at geological and archaeological sites. This not only allows the study of sections from archaeological and geological sites that have since disappeared, but can also answer new archaeological questions on the nature of activities undertaken at such sites. Seven lacquer-peels, from different time-periods and different geogenetic backdrops, have been studied with hand-held XRF (Niton XL3t, GOLDD detector). Five of these lacquer-peels were studied to assess possible interference from mounting materials (glues, textiles and framing boards) used. Four of these lacquer-peels were studied for their palaeo-geochemical information. These lacquer-peels were taken from prehistoric agricultural plots and settlement sites, ranging in age from the Neolithic to the Iron Age. Values for Si, K, Al, Fe, Ti, Sr, Zr and Rb reflect lithogenetic and pedological processes. The contents of S, Ca and P were used as a proxy for anthropogenic influence. The lacquer-peels provided consistent and reliable geochemical readings with the hand-held XRF. Observed correspondence between pedological predictions, archaeological hypotheses and the measured results testifies to the suitability of hand-held XRF for palaeo-geochemical characterization. Interference from the primarily organic fixingand mounting-agents used was absent. Consequently, hand-held XRF analysis allows extraction of palaeo-geochemical information from lacquer-peel soil sections, which opens-up a new potential data-set for reconstructing past pollution and to geochemically re-assess geological and archaeological sites from existent lacquer peelsadding a geochemical dimension to lacquer-peels of pedological, archaeological and geological sites.

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La genèse des podzols

Cited by 12 publications

References 121 publications

Podzolisation and soil organic matter dynamics

Podzolisation and soil organic matter dynamics

Solos sob vegetação de restinga na Ilha do Cardoso (SP): I - Caracterização e classificação

The potential of lacquer-peel soil profiles for palaeo-geochemical analysis using XRF analysis

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