Vegetation diversity and vertical structure as indicators of forest disturbance

Onaindia, Miren; Dominguez, Izaskun; Albizu, Isabel; Garbisu, Carlos; Amézaga, Ibone

doi:10.1016/j.foreco.2004.02.059

Cited by 132 publications

(110 citation statements)

References 39 publications

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“…Output rigidity measures the instability level in the output process. Based on the mass flow of input and output in the production chains, and reference to Simpson Diversity Index (Onaindia et al, 2004;Simpson, 1949), the input and output rigidity can be calculated. That is,…”

Section: Absolute Rigiditymentioning

confidence: 99%

Structural complexity analysis for industrial ecosystems: A case study on LuBei industrial ecosystem in China

Chen

Wang

Yang

et al. 2010

Ecological Complexity

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Section: Absolute Rigiditymentioning

confidence: 99%

Structural complexity analysis for industrial ecosystems: A case study on LuBei industrial ecosystem in China

Chen

Wang

Yang

et al. 2010

Ecological Complexity

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“…The distribution of the vegetation has been considerably altered and reduced by human activity. In the basin, many oak forests have been replaced by pine plantations, of P. radiata in particular (Aizpuru et al, 1999;Schmitz et al, 1998), to such an extent that native forests occupy only about 3.5% of the area of the river basin (Onaindia et al, 2004). Extensive deforestation occurred during the eighteenth and nineteenth centuries (Azkona, 1989).…”

Section: Study Sitementioning

confidence: 99%

“…At each site, two 50 m wide transects were arranged perpendicularly, representing a total area of 90 m 2 that was divided into nine sub-plots of 5 m × 2 m (the optimum plot size was determined by the species/area curve method; Onaindia et al, 2004). In each sub-plot, the percent cover of each plant species (vascular and pteridophyte plants) was estimated at four different strata: 0-0.2 m, 0.2-2.5 m, 2.5-10 m and >10 m. Species identification was according to "Flora del Pais Vasco" (Aizpuru et al, 2007;Aseguinolaza et al, 1988).…”

Section: Plant Species Samplingmentioning

confidence: 99%

“…Also, the presence of the fern D. affinis subsp. Affinis, a species typical of mature forests (Bossuyt et al, 1999;Honnay et al, 1999;Onaindia et al, 2004), is an indicator of the advanced restoration level of the pine plantations. Moreover, the high percent cover of C. avellana and C. sativa and the presence of some species representative of natural forests, such as A.…”

Section: Use Of Pine Plantations To Restore Native Forestsmentioning

confidence: 99%

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Potential use of pine plantations to restore native forests in a highly fragmented river basin

Onaindia

Mitxelena

2009

Ann. For. Sci.

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Abstract• In forests, the substitution of broadleaf species by conifers can reduce biodiversity because coniferous forests generally provide less diverse vascular understories than broadleaf forests. However, in some cases, former pine plantations might be useful for restoring native forests. We compared plant species composition on the plot scale in natural beech and mixed oak forests with that in plantations of Pinus radiata. Links between plant diversity and landscape parameters (patch size, fractal dimension and distance to the nearest patch of the same type) were investigated.• The objective of this study was to evaluate the use of pine plantations for restoring native diversity in a zone where native forests are very fragmented.• Similar to oak forests, plant diversity in pine plantations was high, mainly due to the presence of generalist species. Some species characteristic of oak forests also appeared in pine plantations, suggesting the onset of natural forest regeneration.• These results suggest that pine plantations could be used to promote natural regeneration of original oak forests. Moreover, residual native stands should be conserved as important sources of native species and their seeds. Mots-clés :hêtre / diversité biologique / paysage / chêne / plantation de pins / gestion durable Résumé -Usage possible des plantations de pins pour restaurer les forêts naturelles dans un bassin hydrographique très fragmenté.• Dans les forêts, la substitution des espèces feuillues par des conifères peut réduire la biodiversité, car les forêts de conifères ne présentent pas généralement un sous bois aussi diversifié que les forêts feuillues. Toutefois, dans certains cas, les anciennes plantations de pins pourraient être utiles pour la restauration des forêts naturelles. Nous avons comparé la composition des espèces végétales à l'échelle de la parcelle en hêtraie naturelle et chênaie mixte de même que dans les plantations de Pinus radiata. Les liens entre diversité végétale et paramètres du paysage (taille des bouquets, dimension fractale, et distance du plus proche bouquet de même type) ont été étudiés.• L'objectif de cette étude était d'évaluer le recours à des plantations de pin pour le rétablissement de la diversité naturelle dans une zone où les forêts sont très fragmentées.• La diversité végétale des pinèdes, similaire à celle des chênaies, était élevée, principalement en raison de la présence d'espèces généralistes. Certaines espèces caractéristiques des chênaies sont aussi apparues dans les plantations de pins, ce qui suggère l'apparition d'une régénération de la forêt naturelle.• Ces résultats suggèrent que les plantations de pins pourraient être utilisées pour promouvoir la régénération naturelle des chênaies originelles. En outre, les peuplements résiduels originels devraient être conservés comme sources importantes d'espèces naturelles et de leurs graines.

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“…Many factors affect the diversity of shrub and herb layer. Among others these are environmental conditions (Härdtle et al 2003;Kolb, Diekmann 2004), perturbations (Onaindia et al 2004;Gál-hidy et al 2006), litter layer (Dzwonko, Gawronski 2002) and intensity and type of former forest management (Graae, Heskjaer 1997). Open areas and tree species diversity had a positive relationship to shrub cover because a diverse overstorey generally created more canopy gaps (Gazol, Ibáñez 2009).…”

mentioning

confidence: 99%

Long-term response of understorey cover, basal area and diversity to stand density in a mixed oak forest on the Síkfőkút plot in Hungary

Misik¹,

Varga²,

Veres³

et al. 2013

J. For. Sci.

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ABSTRACT:The serious oak decline was reported for the 1979-80 period and 63.0% of adult oaks died in a mixed oak forest in the Síkfőkút site, Hungary. The data were used to obtain (1) quantitative information on diversity indices of shrub layer and shrub canopy, including foliage cover percentage of the shrub layer, mean cover of shrub species before and after the oak decline and (2) structural information on shrub basal area and shrub foliage arrangement. Since 1972 we have determined diversity indices, cover percentage and basal area of shrubby vegetation on the monitoring and plus plots. A negative relation was detected between Shannon-Wiener and Evenness indices of the shrub layer and living oak tree density. A positive relation was confirmed between basal area and mean cover of dominant woody species (Acer campestre, Acer tataricum and Cornus mas). The mean cover of shrub species except of A. campestre increased non-significantly after the oak decline on the 48 m × 48 m plot. The findings of the study indicate that diversity indices of the shrub layer and mean cover of A. campestre can be used as a principal indicator of natural disturbance in the studied mature stand and the species of the shrub layer respond differently to the decreasing stand density.

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Vegetation diversity and vertical structure as indicators of forest disturbance

Cited by 132 publications

References 39 publications

Structural complexity analysis for industrial ecosystems: A case study on LuBei industrial ecosystem in China

Structural complexity analysis for industrial ecosystems: A case study on LuBei industrial ecosystem in China

Potential use of pine plantations to restore native forests in a highly fragmented river basin

Long-term response of understorey cover, basal area and diversity to stand density in a mixed oak forest on the Síkfőkút plot in Hungary

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