Occurrence of polymerized silicic acid and aluminum species in two forest soil solutions with different acidity

Wonisch, Heike; Gérard, Frédéric; Dietzel, Martin; Jaffrain, Jérôme; Nestroy, Othmar; Boudot, Jean‐Pierre

doi:10.1016/j.geoderma.2007.11.022

Cited by 44 publications

(28 citation statements)

References 70 publications

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“…Furthermore, Wonisch et al (2008) have demonstrated the absence of imogolite type material and other allophane compounds in the forest site of Breuil-Chenue. The concentration of Al ox (Table 1) is indeed dominated by organic-Al complexes, as revealed by the Al speciation calculations made by Wonisch et al (2008). The Si alk pool also comprises Si precipitated from the soil solution in the form of 'free' pedogenic opaline spheres, as shown in Fig.…”

Section: Identification Of Si Poolsmentioning

confidence: 95%

“…1a, b, c) are likely to be other forms of phytoliths and/or pedogenic opal, although forest floor solutions in our experimental site are not supersaturated with respect to amorphous silica (Cornelis et al 2010a). This contradiction might be explained by the Si saturation in micro-sites in the soil, or during short periods of time, because evaporation could have a significant impact on the polymerization behavior of silicic acid in soils causing high silicic acid contents in the remaining solutions, well above the solubility limit of opal-A (Wonisch et al 2008).…”

Section: Humus Layermentioning

confidence: 99%

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Identification and distribution of the readily soluble silicon pool in a temperate forest soil below three distinct tree species

et al. 2011

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In forest ecosystems, the silicon (Si) massbalance at the watershed scale can be strongly influenced by readily soluble Si components, such as dissolved Si, adsorbed Si, amorphous silica (biogenic and pedogenic opal) and short-range ordered aluminosilicates. The aim of the present study is to (a) identify the components of the readily soluble Si pool in the Cambisol found below three tree species, under homogeneous soil and climate conditions, and (b) study the impact of Si recycling by tree species on the Si pools. We therefore measured the concentrations of Si extracted by Na 2 CO 3 (Si alk ), oxalate (Si ox ) and CaCl 2 . The Si alk concentration decreased from the humus layer to 15 cm depth and then slightly increased until a depth of 75 cm. In the humus layer, the Si alk concentration consisted mainly of phytoliths and differed significantly between tree species (expressed as mg SiO 2 g -1 ): Douglas fir (14.5±0.65) > European beech (11.8±0.30) > Black pine (5.4±0.31). Below 7.5 cm, the Si alk content did not differ significantly between tree species, and the Si ox content, increasing significantly, was mainly comprised of Si adsorbed onto amorphous Fe oxides. These results suggest that (a) tree species can impact the readily soluble Si content in the topsoil, through different rates of Si uptake and phytolith restitution by the vegetation, and (b) the soil's readily soluble Si pool is mainly comprised of phytoliths and adsorbed Si. Here, the readily soluble Si pool is thus controlled by both the iron dynamics and Si biocycling.

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Section: Identification Of Si Poolsmentioning

confidence: 95%

Section: Humus Layermentioning

confidence: 99%

Identification and distribution of the readily soluble silicon pool in a temperate forest soil below three distinct tree species

et al. 2011

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“…The acid nature of the soils was due to the loss of bases through plant uptake and leaching (Brunet et al, 1996;Wonisch et al, 2008;Lee et al, 2009). Organic matter was found to be significantly higher (p<0.05) in pasture compared to that in S. macrophylla and P. Caribaea plots.…”

Section: -20 Cm) ----------------------------------------------------mentioning

confidence: 96%

The Fertility Status of Soils at Rehabilitated Degraded Land in Universiti Putra Malaysia Planted with <i>Pinus caribaea</i> and <i>Swietenia macrophylla</i>

Malik¹,

Abdu²,

Karam³

et al. 2015

American Journal of Applied Sciences

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Soil fertility (both physical and chemical) is one of the important factors limiting plant growth. So, the fertility of the soils should be determined before growing crops and after the establishment of forest rehabilitation. A study was conducted to determine the fertility status of soils at rehabilitated degraded land in Universiti Putra Malaysia. The main objective was to compare the fertility of soils planted forest and pasture. Three sites studied were pines plantation (Pinus caribaea), mahogany plantation (Swietenia macrophylla) and pasture area. At each site, three squares of 20×20 m were selected and two depths of soil sample were collected, topsoil (0-20 cm) and subsoil (20-40 cm), from six points within the squares. The physical properties of the soils analyzed were bulk density, soil texture and moisture content, while the chemical properties were pH, total C and N, cation exchangeable capacity and exchangeable cations (Al, Ca, Mg, K and Na). The mean annual increment of height, diameter and volume of planted forest were also taken. The increment of height, diameter at breast height and volume of P. caribaea and S. macrophylla did not show any comparative difference for the cause of the similarity in the increment of patterns catalysed at the same location and climatic condition. P. caribaea showed higher SFI value compared to the other study plots, especially for the topsoil. In contrast, pasture plot had higher SEF, followed by P. caribaea and S. macrophylla plantation plots. P. caribaea showed the highest SFI value, while pasture plot had highest SEF, followed by P. caribaea and S. macrophylla plantation plots. Further study on bigger forest plantation having different types of plant species and land topography needs to be conducted to allow individuals and bodies in the field of forest plantation to gain the opportunity and implement the right approaches to establish forest plantation with good planting establishment practices.

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“…Analisando-se publicações científicas, o termo solo florestal é amplamente utilizado (ROMANS et al, 1973;BARROS e NOVAIS, 1990;COMERFORD, 2002;ZECHMEISTER-BOLTENSTERN et al, 2002;FERNANDES e SOUZA, 2003;WONISCH et al, 2008, FUJII et al, 2008. Comerford (2002) encontrou publicações com o termo desde o ano de 1893, incluindo pesquisadores espanhóis, alemães, franceses, húngaros, canadenses e norte-americanos.…”

Section: O Conceito De Solo Florestalunclassified

“…Processos pedogenéticos como adição e eluviação de compostos organominerais, por exemplo, são fortemente influenciados pelo aporte de áci-dos orgânicos provenientes da serapilheira florestal (PRITCHETT e FISCHER, 1987). Um exemplo dessa influência é a intensificação da formação de polímeros de alumínio e sílica, mesmo em baixo pH, devido ao acúmulo considerável de ácidos orgânicos em solos florestais, os quais atuam como complexantes (WONISCH et al, 2008). Fujji et al (2008) encontraram correlação entre a presença da cobertura florestal e os processos pedogenéticos de solos florestais do Japão, cuja maior produção de ácidos orgânicos dissolvidos acelerou os processos de eluviação-iluviação e acidificação do solo.…”

Section: Características De Distinção Para Solos Florestaisunclassified

Compreensão e aplicabilidade do conceito de solo florestal

Rovedder

Suzuki²,

Dalmolin³

et al. 2013

Ciênc. Florest.

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RESUMOO setor florestal desempenha um papel importante no contexto socioeconômico e ambiental brasileiro, por isso o avanço no conhecimento sobre os solos florestais torna-se essencial para o uso sustentável dos recursos naturais, seja como base de conservação do patrimônio natural ou como recurso para o desenvolvimento econômico. Solo florestal pode ser definido como aquele cuja pedogênese está associada à influência de uma tipologia florestal ou o que apresenta uma cobertura de floresta natural ou plantada. Diferenciar solos florestais daqueles ocupados com outros usos auxilia na compreensão das possíveis alterações relacionadas à cobertura vegetal e no desenvolvimento de melhores estratégias de manejo para o uso do solo e da floresta. No entanto, ainda não há um consenso em torno do termo, uma vez que o solo apresenta variações de acordo com as características da floresta, estimulando a discussão relativa à sua interpretação e aplicabilidade. A presente revisão de literatura tem por objetivo analisar a utilização do conceito de solo florestal, ressaltando características de diferenciação e sua relação com o tipo de cobertura, natural ou plantada. Aspectos relativos à deposição, qualidade e manejo de resíduos, ciclagem de nutrientes, compactação e produtividade de sítio são enfatizados. Conclui-se que o conceito de solo florestal é amplamente utilizado na literatura específica e útil para o levantamento de informações e de planejamento sustentável de uso do solo e da floresta. A melhoria do conhecimento sobre esse recurso abre a possibilidade de se criar uma identidade comum, o que facilita estudos comparativos de características específicas, fortalecendo a pesquisa em torno do tema. Palavras-chave: pedogênese; cobertura florestal; ciclagem de nutrientes; qualidade do solo. ABSTRACTThe forestry sector plays an important role in the socioeconomic and environmental Brazilian context, therefore the improvement of the knowledge about forest soil becomes essential for its sustainable use as a conservation base of natural heritage as resource for economical development. Forest soil can be characterized by pedogenesis occurred under influence of a forestry typology or under a currently natural or cultivated forest coverage. Differentiating forest soils from those occupied with other uses helps the understanding of possible alterations related to vegetal coverage and the developing of better management strategies to soil and forest use. Nevertheless, there is no consensus about this term because the soils present variations according to the forest characteristics, stimulating the discussion concerning its interpretation and applicability. This review aimed to analyze the utilization of forest soil concept, highlighting the differentiation characteristics and the relation with coverage type, natural or cultivated. Aspects related to deposition, quality and management of residues, nutrients cycling, soil compaction and site productivity are emphasized. The forest soil concept is widely used by specific literature and us...

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Occurrence of polymerized silicic acid and aluminum species in two forest soil solutions with different acidity

Cited by 44 publications

References 70 publications

Identification and distribution of the readily soluble silicon pool in a temperate forest soil below three distinct tree species

Identification and distribution of the readily soluble silicon pool in a temperate forest soil below three distinct tree species

The Fertility Status of Soils at Rehabilitated Degraded Land in Universiti Putra Malaysia Planted with <i>Pinus caribaea</i> and <i>Swietenia macrophylla</i>

Compreensão e aplicabilidade do conceito de solo florestal

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