Pure and Mixed Plantations of Eucalyptus camaldulensis and Cupressus lusitanica: Their Growth Interactions and Effect on Diversity and Density of Undergrowth Woody Plants in Relation to Light

DOI: 10.4236/ojf.2015.54032   PDF   HTML     3,192 Downloads   3,865 Views   Citations


Published results on the growth interactions of non-nitrogen fixing mixed plantations species, and their impact on the regeneration of woody plants are scant. This paper addresses the growth interactions of pure and mixed plantations of Eucalyptus camaldulensis and Cupressus lusitanica and their impact on the regeneration of woody plants in relation with light. Data on the regenerated woody plants, individual characteristics of the plantation species and light reaching under the canopies were collected using sample plots (n = 4) with a size of 20 m × 20 m for each plantation type. The result showed that, E. camaldulensis was suppressing the growth of C. lusitanica while its growth was favored when it was mixed with C. lusitanica (p < 0.05). There were no significant differences between the pure and mixed plantations in their diversity and density of undergrowth woody plants (p > 0.05). Density of plantation trees were found not having a significant relationship with diversity of species (p = 0.801). There was a significant but not direct relationship between light reached in the understory of the canopies and diversity of species in the plantations (p = 0.027). Overall, the result indicated that both the pure and the mixed plantations were favoring the recruitment of woody plants.

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Alem, S. , Pavlis, J. , Urban, J. and Kucera, J. (2015) Pure and Mixed Plantations of Eucalyptus camaldulensis and Cupressus lusitanica: Their Growth Interactions and Effect on Diversity and Density of Undergrowth Woody Plants in Relation to Light. Open Journal of Forestry, 5, 375-386. doi: 10.4236/ojf.2015.54032.

Conflicts of Interest

The authors declare no conflicts of interest.


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