Influence of parent material on the aluminium fractions in acidic soils under Pinus pinaster in Galicia (NW Spain)

Eimil‐Fraga, Cristina; Álvarez‐Rodríguez, Esperanza; Rodríguez‐Soalleiro, Roque; Fernández‐Sanjurjo, María J.

doi:10.1016/j.geoderma.2015.04.026

Cited by 31 publications

(18 citation statements)

References 46 publications

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“…This is also consistent with the higher pH values, with the highest contents of organoaluminic complex of high stability and with the scarcity of organoaluminic forms of low stability in the solid phase obtained previously by Eimil‐Fraga et al . () in these same soils. The lower appearance of Al in solution in the soils over biotitic schist indicates that the Al is removed from the liquid phase to forms of high stability in the solid phase.…”

Section: Resultsmentioning

confidence: 70%

“…The pH in the soil solution values ranged between 4·74 and 5·68. This pH varied in a similar way as observed in the solid phase (Eimil‐Fraga et al ., ), and the mean value was significantly higher in the soils over biotitic schist than in the other soils (Table ). The low pH is consistent with the lithology and the temperate‐humid climate of the study area (Álvarez et al ., ).…”

Section: Resultsmentioning

confidence: 89%

“…The lower appearance of Al in solution in the soils over biotitic schist indicates that the Al is removed from the liquid phase to forms of high stability in the solid phase. On the contrary, the highest concentrations of Al in solution were obtained for soils developed from mica schist and slate, which have abundant Al forms of low stability in the solid phase, which therefore can enter easily in the liquid phase (Eimil‐Fraga et al ., ).…”

Section: Resultsmentioning

confidence: 97%

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Aluminium Toxicity Risk for Pinus pinaster in Acid Soils (Galicia, NW Spain)

et al. 2016

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The influence of bedrock on aluminium toxicity and aluminium speciation in the soil solution was studied in four Pinus pinaster plots. Growth and biomass parameters in the acidic soils were also evaluated in relation to different Al toxicity indices. The plots were developed over slate, biotitic schist, mica schist and granite. Samples of rhizospheric and non-rhizospheric soil, 1-year-old needles and roots were collected in each study plot. Total Al, reactive Al, acid-soluble Al, non-labile and labile Al and Al species (Al 3+ , Al-OH, Al-F and Al-SO 4 ) were determined in soil solution. Reactive Al dominated over the acid-soluble Al, and the non-labile Al predominated over the labile Al in all soils, but particularly over mica schist. In the biotitic schist soil, the Al forms and total Al were lower, whereas concentrations were always higher over mica schist. The Al forms considered most toxic were Al 3+ and Al-OH, and Al concentrations were highest over slate and mica schist. Al toxicity indices in soil, needle and roots showed a risk of toxicity in mica schist, slate and granite. The stand site indices over slate and mica schist were lower, consistent with the high labile Al and Al 3+ + Al-OH in soil solution. Despite the high stand site index over granite, the growth efficiency was low, in accordance with very low ratios of Ca/Al in needles or fine roots. This confirmed the adaptation of maritime pine to granitic substrates.

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Section: Resultsmentioning

confidence: 70%

Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 97%

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Aluminium Toxicity Risk for Pinus pinaster in Acid Soils (Galicia, NW Spain)

et al. 2016

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“…Aluminum extraction with KCl (Al KCl ) is a method that has been adopted worldwide to evaluate Al availability in mineral soils that can be affected by soil pH, organic matter content, and soil clay mineralogy (Marques, Teixeira, Schulze, & Curi, 2002;Zolotajkin, Ciba, Kluczka, Skwira, & Smoliński, 2011;Bernini et al, 2013;Eimil-Fraga, Álvarez-Rodriguez, Rodrígues-Soalleiro, & Fernández-Sanjurjo, 2015;Barbosa, Poggere, Dalpisol, Motta, Serrat, & Bittencourt et al, 2017b). Organic matter has the following two distinct actions influencing the amount of Al KCl in soil: i) reductions due to complexation reactions, ii) increases due to organic matter, which is the primary source of CEC in welldeveloped soils (Motta & Melo, 2009).…”

Section: Introductionmentioning

confidence: 99%

<b>Depth distribution of exchangeable aluminum in acid soils: A study from subtropical Brazil

et al. 2018

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“…This fact, together with an accelerated chemical weathering due to the mild temperature and a soil acidification favored by the non-carbonatic nature of the lithologies, induces an intense cation leaching and the genesis of poor soils [28]. On granite and quartz schists, these environmental conditions cause the release of Al in different forms and, because of the acidic soil pH and the scarcity of clay minerals, this Al can enter the soil solution and threaten the vegetation [29]. However, a high organic matter content, and specifically that of humic substances, may promote the formation of stable organo-Al complexes, and thereby reduce the soil Al activity [30].…”

Section: Introductionmentioning

confidence: 99%

Chemical and Biochemical Properties of Soils Developed from Different Lithologies in Northwestern Spain (Galicia)

Cardelli

Cocco

Agnelli

et al. 2017

Forests

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Physical and chemical soil properties are generally correlated with the parent material, as its composition may influence the pedogenetic processes, the content of nutrients, and the element biocycling. This research studied the chemical and biochemical properties of the A horizon from soils developed on different rocks like amphibolite, serpentinite, phyllite, and granite under a relatively similar climatic regime from Galicia (northwest Spain). In particular, the effect of the parent material on soil evolution, organic carbon sequestration, and the hormone-like activity of humic and fulvic acids were tested. Results indicated that all the soils were scarcely fertile because of low concentrations of available P, exchangeable Ca (except for the soils on serpentinite and phyllite), and exchangeable K, but sequestered relevant quantities of organic carbon. The scarce soil fertility was common to all soils independently of the parent material, and we attributed this similarity to the pedogenetic pressure induced by the climatic conditions. Also, the hormone-like activity of humic and fulvic acids, similar for all the soils, was probably due to pedogenesis. We hypothesized that the hormone-like activity of the humic substances helps growth and diffusion of vegetation in low fertile soils and, consequently, soil organic carbon sequestration too.

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Influence of parent material on the aluminium fractions in acidic soils under Pinus pinaster in Galicia (NW Spain)

Cited by 31 publications

References 46 publications

Aluminium Toxicity Risk for Pinus pinaster in Acid Soils (Galicia, NW Spain)

Aluminium Toxicity Risk for Pinus pinaster in Acid Soils (Galicia, NW Spain)

<b>Depth distribution of exchangeable aluminum in acid soils: A study from subtropical Brazil

Chemical and Biochemical Properties of Soils Developed from Different Lithologies in Northwestern Spain (Galicia)

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