Distribution of heavy metals among different bonding forms in tropical peat soils

Yonebayashi, Koyo; Okazaki, Masanori; Pechayapisit, Jiraval; Vijarnsorn, Pisoot; Zahari, Abu Bakar; Kyuma, Kazutake

doi:10.1080/00380768.1994.10413320

Cited by 30 publications

(27 citation statements)

References 9 publications

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“…As variações encontradas nos teores de Mn foram de 0,17 e 83,33 mg kg -1 , com mediana de 16,28 mg kg -1 . Yonebayashi et al (1994) outros metais, podendo até mesmo haver deficiência desse em plantas cultivadas em áreas de Organossolos (Kang & Osiname, 1985;Andriesse, 1988;Yonebayashi et al,1994). Em estudo sobre a adsorção de Cu e Zn em amostras de turfa, Lamim et al (2001) verificaram máxima adsorção do Zn quando os valores de pH foram de 5,5.…”

Section: Atributos Químicosunclassified

Caracterização de Organossolos em ambientes de várzea do nordeste do Brasil

Cipriano-Silva¹,

Valladares

Pereira

et al. 2014

Rev. Bras. Ciênc. Solo

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RESUMOOs Organossolos são geralmente associados às regiões Sudeste e Sul do Brasil, e são poucos os estudos sobre a ocorrência e os efeitos do uso e manejo agrícola desses solos na região Nordeste. Os objetivos deste trabalho foram caracterizar física, química e morfologicamente seis perfis de Organossolos de várzeas dos Estados do Ceará, Rio Grande do Norte e da Paraíba e correlacionar seus atributos ao ambiente de formação, além de quantificar seus estoques de carbono e suas capacidades de armazenamento de água. Foram utilizados os métodos recomendados no Sistema Brasileiro de Classificação de Solos (SiBCS) para caracterizar química e fisicamente o solo, bem como a umidade e o volume residual dele. O aumento dos valores da Ds nos horizontes foi em decorrência da maior decomposição das fibras esfregadas (FE) e da redução dos teores de matéria orgânica. O volume residual apresentou correlações positiva e significativa a 5 % com o valor de resíduo mínimo (r = 0,64) e Ds (r = 0,74) e negativa com a porcentagem de FE (r = -0,75), podendo ser usado para avaliar a subsidência desses solos. As propriedades químicas foram influenciadas pelo material orgânico e pelos sedimentos fluviomarinhos. A variação da drenagem influenciada pela posição no relevo e pelo uso agrícola dos solos conduziu a classes de diferentes graus de decomposição da matéria orgânica e com isto às classes dos Organossolos Fíbrico, Hêmico e Sáprico. Um dos perfis CE1, com maior influência de sedimentos marinhos, foi classificado como Organossolo Tiomórfico com caráter solódico.

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Section: Atributos Químicosunclassified

Caracterização de Organossolos em ambientes de várzea do nordeste do Brasil

Cipriano-Silva¹,

Valladares

Pereira

et al. 2014

Rev. Bras. Ciênc. Solo

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“…13,14) If rhizospherous bacteria can degrade such pholyphenols and humic substances, they can be important partners for local plants inhabiting the peatland ecosystem. To determine whether these polyphenol-degrading bacteria contribute to reducing the adversity of tropical peat soil in the rhizosphere, a polyphenol-metabolizing experiment was done under a shaking-culture condition with exposure to 1 mM tannic acid (TA).…”

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confidence: 99%

“…13,14) The deficiency of such metal cations in tropical peat soil is due to the polyphenolic acid-rich peat soil that possesses catechol and carboxy groups to capture these metallic cations. 15) Rhizobacteria having polyphenol-degrading abilities can decompose and quench phenolic substances present in the rhizosphere of local dipterocarp seedlings, leading to activation of their growth on tropical peat soil.…”

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Salkowski’s Reagent Test as a Primary Screening Index for Functionalities of Rhizobacteria Isolated from Wild Dipterocarp Saplings Growing Naturally on Medium-Strongly Acidic Tropical Peat Soil

Rahman

Sitepu

Tang

et al. 2010

Bioscience, Biotechnology, and Biochemistry

124

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“…The progressing decomposition process alters the organic components 88 and chemistry due to loss of carbon and conversion of readily decomposable materials, such 89 as polysaccharides, celluloses and hemicelluloses, with only more recalcitrant compounds 90 such as lignin and humic substances remaining (Andriesse, 1988; Broder et al, 2012; Kuhry 91 and Vitt, 1996;Yonebayashi et al, 1994). Degradation of physical properties occurs through…”

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confidence: 99%

Impacts of conversion of tropical peat swamp forest to oil palm plantation on peat organic chemistry, physical properties and carbon stocks

et al. 2017

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(2017) Impacts of conversion of tropical peat swamp forest to oil palm plantation on peat organic chemistry, physical properties and carbon stocks. Geoderma, 289 . pp. 36-45. ISSN 1872-6259 Access from the University of Nottingham repository: http://eprints.nottingham.ac.uk/43906/1/Tonks%20et%20al.%20for %20Geoderma_18%20Oct.pdf Copyright and reuse:The Nottingham ePrints service makes this work by researchers of the University of Nottingham available open access under the following conditions. This article is made available under the Creative Commons Attribution Non-commercial No Derivatives licence and may be reused according to the conditions of the licence. For more details see: http://creativecommons.org/licenses/by-nc-nd/2.5/ A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.uk greater than decomposition rates (Jauhiainen et al., 2008). 54These unique systems are valuable resources, contributing a multitude of ecosystem services. 55Above ground, tropical rainforests maintain areas of high biodiversity by providing habitats 56 for a variety of species, many of which are endemic (Posa et al. 2011; Keddy et al., 2009). 57Below ground, the sequestration of atmospheric carbon is interwoven into the fabric of the 58 ecosystem (Jauhiainen et al., 2008). An estimated 42,000 megatons of ancient carbon is 59 stored in 12% of the total land area of Southeast Asia alone, making this one of the largest 60 stores of terrestrial carbon on Earth (Wetlands International, 2014). Peat soil structure is 61 responsible for ecosystem processes by controlling hydrology, which regulates hydrological 62 features within the catchment. For example, its high organic matter content and low bulk 63 density allows peat to acts as a water reservoir, mitigating extreme conditions such as floods 64 and droughts (Huat et al., 2011;Wösten et al., 2008). 65Land use change over the past century has been a key driver of peatland degradation, with 66 conversion to agriculture and forestry, and peat extraction sites, leading to artificially lowered 67 water tables (Haddaway et al., 2014 (Hooijer et al., 2010; Couwenberg et al., 2010). 85A greater degree of peat decomposition results in loss of structure as fresh litter is first broken 86 down to fibrous hemic peat, and then, following sustained decomposition, to sapric peat 87 (Wüst et al., 2003). The progressing decomposition process alters the organic components 88 and chemistry due to loss of carbon and conversion of readily decomposable materials, such 89 as polysaccharides, celluloses and hemicelluloses, with only more recalcitrant compounds 90 such as lignin and humic substances remaining (Andriesse, 1988; Broder et al., 2012; Kuhry 91 and Vitt, 1996;...

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Distribution of heavy metals among different bonding forms in tropical peat soils

Cited by 30 publications

References 9 publications

Caracterização de Organossolos em ambientes de várzea do nordeste do Brasil

Caracterização de Organossolos em ambientes de várzea do nordeste do Brasil

Salkowski’s Reagent Test as a Primary Screening Index for Functionalities of Rhizobacteria Isolated from Wild Dipterocarp Saplings Growing Naturally on Medium-Strongly Acidic Tropical Peat Soil

Impacts of conversion of tropical peat swamp forest to oil palm plantation on peat organic chemistry, physical properties and carbon stocks

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