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26 March 2008 Plant traits enabling survival in Mediterranean badlands in northeastern Spain suffering from soil erosion
Joaquín Guerrero-Campo, Sara Palacio, Gabriel Montserrat-Martí
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Abstract

Question: This study analysed the effect of severe soil erosion on species composition of plant communities by favouring species showing certain growth forms, root-sprouting and clonal growth abilities.

Location: The study area was located between the middle Ebro Valley and the Pre-Pyrenees (northeastern Spain).

Methods: Root-sprouting and shoot-rooting abilities, clonal reproduction and growth form were assessed for the 123 most common plant species from eroded lands in the study area. We obtained 260 vegetation relevés in three different substrata (gypsum outcrops, Miocene clays and Eocene marls) on areas with different degrees of soil erosion. The frequency of every plant trait in each relevé was estimated according to species presence. The effect of soil erosion on the frequency of plant attributes was assessed by correlation analyses.

Results: Bipolar, non-clonal plants and annual species decreased their frequency with increasing soil erosion in the three substrata analyzed, whereas root-sprouters and woody plants (mostly sub-shrubs) increased their frequency in most of the substrata analysed.

Conclusions: Woody sub-shrubs, root-sprouters and clonal species are favoured in eroded lands in NE Spain. Bipolar species and annual plants might not be plastic enough to survive the high stress and frequent disturbances prevailing in such eroded areas.

Joaquín Guerrero-Campo, Sara Palacio, and Gabriel Montserrat-Martí "Plant traits enabling survival in Mediterranean badlands in northeastern Spain suffering from soil erosion," Journal of Vegetation Science 19(4), 457-464, (26 March 2008). https://doi.org/10.3170/2008-8-18382
Received: 28 December 2006; Accepted: 1 August 2007; Published: 26 March 2008
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