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Plants 2013, 2(3), 455-472; doi:10.3390/plants2030455

Self-Affinity, Self-Similarity and Disturbance of Soil Seed Banks by Tillage

Department of Biology, School of Sciences and Technology, University of Évora, Ap. 94, Évora 7002-554, Portugal
Received: 22 April 2013 / Revised: 7 May 2013 / Accepted: 1 July 2013 / Published: 5 July 2013
(This article belongs to the Special Issue Complex System Theory Applied to Plant Sciences)
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Abstract

Soil seed banks were sampled in undisturbed soil and after soil had been disturbed by tillage (tine, harrow or plough). Seeds were sorted by size and shape, and counted. Size-number distributions were fitted by power law equations that allowed the identification of self-similarity and self-affinity. Self-affinity and thus non-random size-number distribution prevailed in undisturbed soil. Self-similarity and thus randomness of size-number distribution prevailed after tillage regardless of the intensity of disturbance imposed by cultivation. The values of fractal dimensions before and after tillage were low, suggesting that short-term, short-range factors govern size-number distribution of soil seed banks. View Full-Text
Keywords: disturbance; fractal; seed shape; seed size; self-affinity; self-similarity; soil seed banks; tillage disturbance; fractal; seed shape; seed size; self-affinity; self-similarity; soil seed banks; tillage
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Dias, L.S. Self-Affinity, Self-Similarity and Disturbance of Soil Seed Banks by Tillage. Plants 2013, 2, 455-472.

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