Tree fine root Ca/Al molar ratio – Indicator of Al and acidity stress

Vanguelova, Elena; Hirano, Yasuhiro; Eldhuset, Toril D.; Sas-Paszt, Lidia; Bakker, Mark R.; Püttsepp, Ülle; Brunner, Ivano; Lõhmus, Krista; Godbold, Douglas L.

doi:10.1080/11263500701626192

Cited by 63 publications

(36 citation statements)

References 97 publications

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“…Huettl and Zoettl, 1993;Matzner et al, 1985;Vanguelova et al, 2007). Together with these soil effects, the significant improvement in the crown condition as well as in the foliar Ca and Mg status of the limed trees at these sites (Jonard et al, 2010), can also explain the increase in radial growth.…”

Section: Liming Effectmentioning

confidence: 88%

Liming effect on radial growth depends on time since application and on climate in Norway spruce stands

Perre¹,

Jonard²,

André³

et al. 2012

Forest Ecology and Management

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Section: Liming Effectmentioning

confidence: 88%

Liming effect on radial growth depends on time since application and on climate in Norway spruce stands

Perre¹,

Jonard²,

André³

et al. 2012

Forest Ecology and Management

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“…Mg)/Al molar ratio in the soil solution (Cronan and Grigal 1995;Vanguelova et al 2007). However, the properties of the well-rooted 10-20 cm horizon still favored Al uptake.…”

Section: Discussionmentioning

confidence: 98%

Thirteen-year monitoring of liming and PK fertilization effects on tree vitality in Norway spruce and European beech stands

et al. 2010

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The chemical fertility of the forest soils in the Belgian Ardenne is threatened by acidifying and eutrophying deposition and by the nutrient removal due to timber harvesting. Experiments were launched to evaluate the ability of liming and fertilization to improve foliar nutrition, maintain or restore crown condition and promote tree growth. In 1995, 10 liming and fertilization trials were installed in even-aged stands of European beech (5) and Norway spruce (5) distributed throughout the Ardenne. In each stand, two treatments were tested: liming with 3,000 kg ha -1 of dolomitic limestone and liming plus fertilization with 0 to 800 kg ha -1 of rock phosphate and 0 to 350 kg ha -1 of K 2 SO 4 . Between 1995 and 2006, the foliar Ca and Mg status of spruce and beech trees improved in the limed stands, which limited significantly but did not prevent the decline in crown condition triggered by the summer drought in 2003. For spruce, liming also increased the increment in basal area. The additional fertilization increased the foliar nutrition in P but had no significant effects on soil chemistry and tree vitality.

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“…The decrease in the fine root Ca/Al ratio with the soil depth has been reported by many authors -e.g. Persson and Majdi (1995), Vanguelova et al (2007) and Borken et al (2007); the absolute values on the previously mentioned plots, however, are quite low in comparison with other European surveys. Persson and Majdi (1995) found a low Ca/Al ratio in acidified soils in Sweden ranging between 0.05 and 0.38; Nygaard and de Witt (2004) found ratios from 0.16 to 2.67 in Nordmoen in Norway, Borken et al (2007) The molar ratio of base cations to aluminium [(Ca+K+Mg)/Al or BC/Al] could represent a more precise tool for risk assessment at sites where potassium has a more noticeable impact on the sorption complex of forest soils.…”

Section: Chemical Composition Of Fine Rootsmentioning

confidence: 64%

Ca/Al ratio in Norway spruce fine roots on monitoring plots in the Czech Republic

2014

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This article is focused on the evaluation of the Al/Ca ratio in fine roots of Norway spruce on the plots belonging to the ICP Forests monitoring programme in the Czech Republic. In total 122 fine root samples were collected from twenty plots from two soil layers of 0-10 and 10-20 cm and then analysed. The mean Ca/Al molar ratio in the fine roots from the 0-10 cm topsoil layer is higher than in the lower 10-20 cm soil layer, which corresponds to the distribution of fine roots -on average 80% of fine roots were found in the topsoil. 6% of the samples in the lower soil layer strongly indicate aluminium stress (Ca/Al < 0.1) and 30% of the samples may demonstrate the adverse effects of aluminium (< 0.2). On the other hand, no relationship was found between the Ca/Al ratio in the fine roots and the fine root biomass and vitality or crown condition. These results suggest that the potential aluminium toxicity is not the driving factor of the crown condition in Norway spruce and the Ca/Al ratio itself does not pose a risk to forest health in the region.

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Tree fine root Ca/Al molar ratio – Indicator of Al and acidity stress

Cited by 63 publications

References 97 publications

Liming effect on radial growth depends on time since application and on climate in Norway spruce stands

Liming effect on radial growth depends on time since application and on climate in Norway spruce stands

Thirteen-year monitoring of liming and PK fertilization effects on tree vitality in Norway spruce and European beech stands

Ca/Al ratio in Norway spruce fine roots on monitoring plots in the Czech Republic

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