Long-term sustainability of cork oak agro-forests in the Iberian Peninsula: A model-based approach aimed at supporting the best management options for the montado conservation

Arosa, Maria L.; Bastos, Rita; Cabral, João Alexandre; Freitas, Helena; Costa, Sofia R.; Santos, Mário

doi:10.1016/j.ecolmodel.2016.10.008

Cited by 36 publications

(22 citation statements)

References 84 publications

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“…From this cork ring age, the understory revealed a negative effect on annual cork growth. These results are in line with conservative understory management strategies that minimize soil intervention to reduce the negative impact on tree root development [30] and on tree regeneration patterns and viability [31]. It is also in line with the findings of Mendes et al [4], which suggest that making a shrub cut every 5-6 years supports the normal natural regeneration of the understory shrubs, with a minor effect on local species richness of soil biota.…”

Section: Interspecific Competition Driver: Understory Growth Charactesupporting

confidence: 85%

Drivers for Annual Cork Growth under Two Understory Management Alternatives on a Podzolic Cork Oak Stand

Faias

Paulo

Firmino

et al. 2019

Forests

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Understory management practices and stand density characteristics allow one to distinguish a cork oak traditional silvopastoral system (known as a montado) from a cork oak forest system. Although understanding the manner in which different management practices affect cork growth is imperative, there are still only a few outputs from experimental research that contribute to this knowledge. The effect of potential drivers on annual cork growth was analyzed using a linear mixed model approach. Two dimensions of drivers were considered: intraspecific competition, assessed by tree level distance-dependent indices; and interspecific competition, assessed by variables characterizing understory management. The present dataset was collected from an experimental trial established on a cork oak stand in Podzolic soil on the Tagus river basin, covering two different cork growth cycles over the period from 2003 to 2015. The adjusted models considered two understory management alternatives: spontaneous shrubs maintenance and forage application. In both models, annual precipitation displayed a positive effect on annual cork growth, as expected. However, no significant effect of intraspecific competition was found. Additionally, there was a positive effect on annual cork growth associated with the spontaneous shrubs growth and a negative effect associated with lupine presence; both effects linked to different cork ring ages’ thresholds. The study main contributions are the following: (i) the introduction of the interaction between cork growth cycle stage and understory management practices, only possible with cork sample collections from different cork rotation cycles; (ii) the finding that there was no significant effect of intraspecific competition on cork growth.

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Section: Interspecific Competition Driver: Understory Growth Charactesupporting

confidence: 85%

Drivers for Annual Cork Growth under Two Understory Management Alternatives on a Podzolic Cork Oak Stand

Faias

Paulo

Firmino

et al. 2019

Forests

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“…The latter is especially prevalent in the southwest of the Iberian Peninsula, as it prefers acid soils in thermic areas with a minimum annual rainfall (Costa Tenorio et al 2005). They are most typically found scattered across savannah-like pasturelands known as Dehesas in Spanish and montados in Portuguese (Smit et al 2009;Arosa et al 2017). By contrast, deciduous oaks are ecologically stricter, although Quercus faginea Lam.…”

Section: Test Speciesmentioning

confidence: 99%

Predicting suitability of forest dynamics to future climatic conditions: the likely dominance of Holm oak [Quercus ilex subsp. ballota (Desf.) Samp.] and Aleppo pine (Pinus halepensis Mill.)

Tirado

Hidalgo

2018

Annals of Forest Science

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& Key message Composite logistic regression models simulating the potential effect of global climate change on forests dynamics in the southern Iberian Peninsula identify Holm oak [Quercus ilex subsp. ballota (Desf.) Samp.] and Aleppo pine (Pinus halepensis Mill.) as the chief beneficiaries of the anticipated environmental shifts, whereas other oak species and conifers suffer a decline. & Context The ten most important tree species (five oaks and five conifers) in Southern Spain were selected for the study. The study area, corresponding to the region of Andalusia, is located in an interesting position between Central European and North African climates. The territory also exhibits the most extreme patterns of rainfall in the Iberian Peninsula. & Aims This study aims to model the potential distribution of the ten species in response to climate change, in several time periods, including the present and two future twenty-first century dates. & Methods The potential distributions within the different scenarios were simulated using logistic regression techniques based on a set of 19 climate variables from the WorldClim 1.4 project. The scenarios were drawn from the RCP 2.6 and 6.0 in the CCSM4 Global Circulation Model. The resolution of the output maps was 30 arc-seconds. & Results The simulation predicted increased distribution areas for Q. ilex and P. halepensis under the four future scenarios as compared to present. The eight remaining taxa suffered a severe retraction in potential distribution. & Conclusion Global climate change is likely to have a significant impact on forest dynamics in southern Spain. Only two species would benefit to the detriment of the others. Logistic Regression is identified as a robust method for carrying out management and conservation programmes.

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“…Appropriate grazing management is es-sential for the regeneration and conservation of cork oak stands (Arosa et al 2017).…”

Section: Discussionmentioning

confidence: 99%

“…Hence, suitable grazing regulations (indicator 5) should be included among the management practices to be adopted for sustainable cork oak systems. Biotic and abiotic stress factors and erroneous management practices, including the use of heavy farm machinery to till and prepare the soil for crop cultivation, may significantly affect the productivity and conservation of cork oaks (Arosa et al 2017). Several authors report a general degraded condition of cork oaks, known as oak decline (Branco & Ramos 2009, Moricca et al 2016.…”

Section: Discussionmentioning

confidence: 99%

Indicators for the assessment and certification of cork oak management sustainability in Italy

Pollastrini¹,

Chiavetta²,

Cutini³

et al. 2018

iForest

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Sustainable forest management (SFM) is crucial for forest ecosystem productivity and conservation, especially in systems such as cork oak (Quercus suber L.) threatened by human activities and biotic and abiotic factors. In this study SFM indicators with particular reference to cork oak forests in the region of Sardinia (Italy) are proposed and tested. Sustainable and responsible management options specifically aimed at cork oak forest management and chain of custody certification are also provided. A set of ten indicators was proposed and assessed by an expert panel in cork oak management. Five indicators were also tested against data on structure, origin, health condition and management in 285 forest compartments managed by FoReSTAS (Regional Forest Agency for Land and Environment of Sardinia, Italy), including 361 sampling plots and 5345 trees. In order to investigate the priorities and perceptions of SFM experts and stakeholders, a survey was also carried out by completion of a questionnaire on the technical issues of cork oak woodland management. The survey results highlighted a need to improve environmental and economic performance by means of SFM and certification. The indicators tested in Sardinian cork oak woodlands showed that about 80% of the stands fulfilled management sustainability requirements. The suggested SFM indicators can effectively support proactive management and conservation measures, representing a valuable tool in the current context of growing environmental and socioeconomic awareness.

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Long-term sustainability of cork oak agro-forests in the Iberian Peninsula: A model-based approach aimed at supporting the best management options for the montado conservation

Cited by 36 publications

References 84 publications

Drivers for Annual Cork Growth under Two Understory Management Alternatives on a Podzolic Cork Oak Stand

Drivers for Annual Cork Growth under Two Understory Management Alternatives on a Podzolic Cork Oak Stand

Predicting suitability of forest dynamics to future climatic conditions: the likely dominance of Holm oak [Quercus ilex subsp. ballota (Desf.) Samp.] and Aleppo pine (Pinus halepensis Mill.)

Indicators for the assessment and certification of cork oak management sustainability in Italy

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