Le dépérissement de l'érable à sucre (acer saccharum marsh.) au quebec

Gagnon, Graham A.; Roy, G.

doi:10.4267/2042/26579

Cited by 7 publications

(5 citation statements)

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“…In a review ofthe causes of sugar maple (Acer saccharum Marsh.) decline in Quebec, Gagnon and Roy (1994) . Also, Bernier et al (1989) In the context of sugar maple decline, the impact of soil acidification on endomycorrhiza symbiosis has been questioned.…”

mentioning

confidence: 99%

Effect of soil base saturation and endomycorrhization on growth and nutrient status of sugar maple seedlings

Ouimet¹,

Camiré²,

Furlan³

1996

Can. J. Soil. Sci.

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Nutrient imbalances of declining sugar maple (Acer saccharum Marsh.) stands in southeastern Quebec have been associated partly with high soil exchangeable acidity and low base saturation on. A greenhouse experiment was set up to determine how growth and nutrient status of sugar maple seedlings can be influenced by soil acidification and the presence of an endomycorrhizal fungus. The experiment consisted of five levels of soil base saturation (from 12 to 50%) and two levels of soil inoculation by an endomycorrhizal fungus (inoculated and control) in a complete factorial arrangement Sugar maple seedlings were grown for 3 mo in the treated soil substrates. Seedling shoot elongation rate, growth [dry matter (TDM) mass, stem diameter, and total leaf area], and K, Ca and Mg concentrations in foliage and roots decreased with soil acidification with base saturation used as an indicator of the soil-acidification status. Foliar K and Ca level reached values below critical thresholds when soil base saturation was reduced to 12%. Under the experimental conditions, seedling growth was not significantly affected by endomycorrhization, except for root DM mass, which was reduced by 24% compared with the control treatment. For mycorrhizal seedlings, foliar Al concentration increased linearly from 113 mg kg−1 to 210 mg kg−1 with the reduction of soil base saturation from 50% to 12%, while, for non-mycorrhizal seedlings, foliar Al concentration remained at a high level (195 mg kg−1) independently of the soil acidification level. Sugar maple seedling growth was not related to accumulation of Al in foliage. The results of this experiment support the hypothesis that a causal relationship exists between the level of soil base saturation and the growth decrease and associated nutrient disorders observed in declining sugar maple stands in Quebec. Key words:Acer saccharum, nutrient status, seedling growth, soil base saturation, endomycorrhizae

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mentioning

confidence: 99%

Effect of soil base saturation and endomycorrhization on growth and nutrient status of sugar maple seedlings

Ouimet¹,

Camiré²,

Furlan³

1996

Can. J. Soil. Sci.

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“…Subsequent work indicates that acid rain may have contributed to aluminum mobilization and attendant aluminum toxicity or to base cation (primarily Mg and Ca) loss and nutrient deficiencies on nutrient-poor sites (Horsley et al, 2000(Horsley et al, , 2002Duchesne et al, 2002). Most investigators, however, now believe that the decline was due to a variety of interacting factors (Gagnon and Roy, 1995). Following Manion's (1991) model of forest decline, certain factors predispose the tree to decline.…”

Section: Impact Of Monoculturesmentioning

confidence: 94%

Sweet trees, sour circumstances: the long search for sustainability in the North American maple products industry

Whitney

Upmeyer²

2004

Forest Ecology and Management

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“…It was produced by the interpretation of aerial photography (1:50 000 scale). Gagnon and Roy (1994), MRNQ (1999), and Roy et al (1985Roy et al ( , 2002 showed the important influence of surface deposits and drainage on the spatial distribution of tree species and stand type. Soil moisture, especially during the growth season, plays a significant role not only on site quality but also on forest composition (Zobel et al, 1976;Larsen, 1980).…”

Section: Ancillary Datamentioning

confidence: 97%

“…Soil moisture, especially during the growth season, plays a significant role not only on site quality but also on forest composition (Zobel et al, 1976;Larsen, 1980). More specifically, Gagnon and Roy (1994) emphasized the major role of site drainage on sugar maple dieback.…”

Section: Ancillary Datamentioning

confidence: 99%

Application of evidential reasoning to improve the mapping of regenerating forest stands

Mora

Fournier

Foucher

2011

International Journal of Applied Earth Observation and Geoinfor

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Le dépérissement de l'érable à sucre (acer saccharum marsh.) au quebec

Cited by 7 publications

References 0 publications

Effect of soil base saturation and endomycorrhization on growth and nutrient status of sugar maple seedlings

Effect of soil base saturation and endomycorrhization on growth and nutrient status of sugar maple seedlings

Sweet trees, sour circumstances: the long search for sustainability in the North American maple products industry

Application of evidential reasoning to improve the mapping of regenerating forest stands

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