Relationship between sugar maple decline and corresponding chemical changes in the stem tissue

Wood cores were taken at breast height of mature sugar maple (Acer Saccharum Marsh.) trees of approximately the same age from four sites in Ontario, Canada differing in soil characteristics and general tree health. The soils of two of the sites were acidic (podzols), while the soils of the other two...

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Bibliographic Details
Published in:	Water, air, and soil pollution Vol. 96; no. 1-4; pp. 321 - 327
Main Authors:	Mohamed, H.K. (Toronto Univ., Toronto, Ont. (Canada). Faculty of Forestry), Pathak, S, Roy, D.N, Hutchinson, T.C, McLaughlin, D.L, Kinch, J.C
Format:	Journal Article
Language:	English
Published:	Dordrecht Springer 01-05-1997 Springer Nature B.V
Subjects:	ACER SACCHARUM Acer saccharum saccharum Acidic soils ACIDIFICACION ACIDIFICATION Activation analysis ALUMINIO ALUMINIUM Aluminum Animal, plant and microbial ecology Applied ecology Biological and medical sciences Cores Deciduous trees Decline Ecotoxicology, biological effects of pollution Effects of pollution and side effects of pesticides on plants and fungi Environmental monitoring Fundamental and applied biological sciences. Psychology Neutron activation analysis Neutrons PH DEL SUELO PH DU SOL Podzols Saccharides Soil Soil characteristics SOIL PH SOIL TOXICITY Soils Stems Sugar TOXICIDAD TOXICIDAD DEL SUELO TOXICITE TOXICITE DU SOL TOXICITY Trees Wood XILEMA XYLEM XYLEME Canada North America Ontario America Canada, Ontario Chemical analysis Wood Toxicity Aluminium Index Aceraceae Podzolized soil Soils Pollution Phytotoxicity Acer saccharum Dicotyledones Dieback Angiospermae Hardwood forest tree Spermatophyta Podzol
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Summary:	Wood cores were taken at breast height of mature sugar maple (Acer Saccharum Marsh.) trees of approximately the same age from four sites in Ontario, Canada differing in soil characteristics and general tree health. The soils of two of the sites were acidic (podzols), while the soils of the other two sites were calcareous (brunisols). Selected elemental analyses using Neutron Activation Analysis were conducted on the soils and the xylem wood of the sugar maple trees, and the results were compared relative to tree health. Aluminum in stem xylem was found to be significantly higher in declining trees (mean 7.7 ppm) relative to the healthy trees (mean 4.0) from the acidic sites, where aluminum was freely available in the soil. Soil extractable aluminum was also significantly higher in the soil adjacent to the declining trees (mean 5.10) compared to the healthy trees (mean 3.20). These results show that xylem aluminum contents reflect the increased availability of aluminum in acidifying soils and provide additional evidence that dendrochemistry may be used as a proxy environmental monitoring tool.
Bibliography:	T01 1998003862 K70 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2
ISSN:	0049-6979 1573-2932
DOI:	10.1007/BF02407212