PourbabaeiEbrahimiTorkamanEtAl2014

Référence

Pourbabaei, H., Ebrahimi, S.S., Torkaman, J. and Pothier, D. (2014) Comparison in woody species composition, diversity and community structure as affected by livestock grazing and human uses in beech forests of northern Iran. Forestry Ideas, 20:99-109.

Résumé

In the more forested areas of Iran, rural people are in close relationship with natural resources, especially forests. This close association endangers the dynamics and sustainability of forest ecosystems. Hence, we investigated the effects of grazing and human uses on woody plant diversity, composition and forest structure in beech forests of northern Iran. We thus compared a 50-ha area protected against livestock and human disturbances to a 50-ha unprotected area. In each area, we recorded tree species, diameter at breast height (DBH) of merchantable trees, and stem numbers of shrub species in 1000-m2 plots established in a random-systematic sampling design. These data allowed us to compute diversity indices separately for tree and shrub layers. Results revealed that tree density, mean tree DBH and total basal area were significantly higher in the protected than in the unprotected area. However, in both the tree and the shrub layers, values of Shannon diversity, evenness index, richness, and shrub density were lower in the protected area than in the unprotected area. Because forest structure, composition and diversity are closely associated with human traditional activities, we recommend that conservation programs be implemented in collaboration with local people to help establish effective management aiming at providing services for local people while restoring these forests.

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@ARTICLE { PourbabaeiEbrahimiTorkamanEtAl2014,
    AUTHOR = { Pourbabaei, H. and Ebrahimi, S.S. and Torkaman, J. and Pothier, D. },
    TITLE = { Comparison in woody species composition, diversity and community structure as affected by livestock grazing and human uses in beech forests of northern Iran },
    JOURNAL = { Forestry Ideas },
    YEAR = { 2014 },
    VOLUME = { 20 },
    PAGES = { 99-109 },
    ABSTRACT = { In the more forested areas of Iran, rural people are in close relationship with natural resources, especially forests. This close association endangers the dynamics and sustainability of forest ecosystems. Hence, we investigated the effects of grazing and human uses on woody plant diversity, composition and forest structure in beech forests of northern Iran. We thus compared a 50-ha area protected against livestock and human disturbances to a 50-ha unprotected area. In each area, we recorded tree species, diameter at breast height (DBH) of merchantable trees, and stem numbers of shrub species in 1000-m2 plots established in a random-systematic sampling design. These data allowed us to compute diversity indices separately for tree and shrub layers. Results revealed that tree density, mean tree DBH and total basal area were significantly higher in the protected than in the unprotected area. However, in both the tree and the shrub layers, values of Shannon diversity, evenness index, richness, and shrub density were lower in the protected area than in the unprotected area. Because forest structure, composition and diversity are closely associated with human traditional activities, we recommend that conservation programs be implemented in collaboration with local people to help establish effective management aiming at providing services for local people while restoring these forests. },
    OWNER = { nafon9 },
    TIMESTAMP = { 2014.12.10 },
}

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