NDLI: Does low soil base saturation affect fine root properties of European beech (Fagus sylvatica L.)?

Content Provider	Springer Nature Link
Author	Richter, Anika K. Walthert, Lorenz Frossard, Emmanuel Brunner, Iva
Copyright Year	2007
Abstract	It is generally believed that high soil solution Al$^{3+}$ in acidic soils with low base saturation (BS), negatively influences the properties of fine roots. Fine roots from European beech (Fagus sylvatica L.) trees growing in highly acidic soils with very low BS and potentially high Al$^{3+}$ concentration in the soil solution were analysed and the dependency of fine root properties on soil BS was measured. The fine roots were sampled down to 1 m depth at seven forest sites located on the Swiss Plateau. These sites varied in their BS from 1.4 to 11.4% in the mineral layers. We evaluated relationships between the BS of these mineral layers and fine root properties, such as ratio between bio- and necromass (live/dead ratio), specific root length (SRL), root tip abundance (RTA), root branching abundance (RBA), O$_{2}$-consumption, and the Ca/Al molar ratio in the fine root tissue. The fine root properties were compared not only with the BS of the soil, but also with the Ca/Al molar ratio in the fine root tissues. Significant relations of fine root properties occurred when the soils of the seven sites were grouped into two BS groups (<5 and 5–10%). The live/dead ratio, the RTA, the RBA, the O$_{2}$-consumption, and Ca/Al molar ratio were lower in the group of BS <5% than in the group 5–10%. Decreases in the morphological properties and in the O$_{2}$-consumption were related to decrease in the Ca/Al molar ratio of the fine root tissues. There is evidence that the fine root properties are negatively influenced, nevertheless, fine root systems of mature European beech in their natural ecological environment seem to be able to compensate adverse effects of low BS.
Starting Page	69
Ending Page	79
Page Count	11
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	298
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-08-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aluminium toxicity Ca/Al molar ratio Fagus sylvatica Fine root morphology Ecology Plant Physiology Soil Science & Conservation Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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