M. Abedi, M. Bartelheimer and P. Poschlod Aluminium toxic effects on seedling root survival affect plant composition along soil reaction gradients – a case study in dry sandy grasslands Journal of Vegetation Science 24
Seedling roots of species from Central European sandy grasslands were exposed to different concentrations of aluminium (Al). Al-tolerance was found to strongly correlate with Ellenberg-indicator-values for soil reaction. Hence, Al acts as an environmental filter in acidic soils by allowing only Al-tolerant seedlings to grow roots. Al-tolerance is a measurable objective trait with the potential to underpin subjectively derived Ellenberg-indicator-values.
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