Assessing forest soil base cation status and availability using lake and stream sediment geochemistry: A case study in Quebec (Canada)

Geoderma ◽  
2013 ◽  
Vol 211-212 ◽  
pp. 39-50 ◽  
Author(s):  
Evelyne Thiffault ◽  
David Paré ◽  
Luc Guindon ◽  
André Beaudoin ◽  
Suzanne Brais ◽  
...  
2009 ◽  
Vol 39 (12) ◽  
pp. 2273-2282 ◽  
Author(s):  
Louis Duchesne ◽  
Rock Ouimet

Recently, sugar maple ( Acer saccharum Marsh.) decline in northeastern North America has been regarded as a major factor structuring hardwood forests by favouring American beech ( Fagus grandifolia Ehrh.) in the understory of maple-dominated stands. To determine whether soil fertility differences associated with sugar maple decline may have promoted the expansion of American beech, we explored the relationships between the soil base status and the sapling and tree strata density and composition, using data from 426 permanent sample plots distributed throughout Quebec. Our results indicate that American beech is currently expanding in the sugar maple range of Quebec. The abundance and proportion of American beech in the sapling stratum are mainly associated with the proportion of American beech in the tree stratum, the relative basal area of dead sugar maple trees, and the base status of soils. In accordance with the many studies reporting on the high sensitivity of sugar maple to the acid–base status of soils and the decline of the sugar maple population, this study supports the hypothesis that soil base cation depletion, caused in part by atmospheric acid deposition, is among the main factors involved in the present-day expansion of American beech over a large area in Quebec.


2013 ◽  
Vol 05 (02) ◽  
pp. 282-290 ◽  
Author(s):  
Victor F. Embui ◽  
Benjamin O. Omang ◽  
Vivian B. Che ◽  
Melvin T. Nforba ◽  
Emmanuel C. Suh

2018 ◽  
Vol 140 (2) ◽  
pp. 127-144 ◽  
Author(s):  
Fougère Augustin ◽  
Daniel Houle ◽  
François Courchesne
Keyword(s):  

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