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

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; in revised form: 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.
Keywords: disturbance; fractal; seed shape; seed size; self-affinity; self-similarity; soil seed banks; tillage

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MDPI and ACS Style

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

AMA Style

Dias LS. Self-Affinity, Self-Similarity and Disturbance of Soil Seed Banks by Tillage. Plants. 2013; 2(3):455-472.

Chicago/Turabian Style

Dias, Luís S. 2013. "Self-Affinity, Self-Similarity and Disturbance of Soil Seed Banks by Tillage." Plants 2, no. 3: 455-472.

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