Effects of multiple factors on plant diversity of forest fragments in intensive farmland of Northern Portugal

Lomba, Ângela; Vicente, Joana R.; Moreira, Francisco; Honrado, João P.

doi:10.1016/j.foreco.2011.08.014

Cited by 22 publications

(35 citation statements)

References 50 publications

(95 reference statements)

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“…The fact that wildfires affected large areas of Portugal during the period of study is well known, and its effect on the overall reduction of forest area has already been pointed out [20]. Forest plantations, particularly of fast-growing species like maritime pine (Pinus pinaster) and eucalyptus (mainly Eucalyptus globulus) [40] and spontaneous encroachment (more frequent in the northeastern mountainous areas of the country) [41] have not been enough to counterbalance the effect of wildfires, although this is debated by some sources [16]. On the contrary, afforestation is one of the main processes in Spain, particularly in the more rugged, mountainous areas located at higher altitude [42], but also in areas where forest plantations coexist with high livestock density (Galicia, Basque Country, Catalonia).…”

Section: Discussionmentioning

confidence: 97%

Determinants of Land Use/Cover Change in the Iberian Peninsula (1990–2012) at Municipal Level

Nogueira

Rico

2019

Land

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This work analyzes the determinants associated with main land use/cover changes in the Iberian Peninsula during the 1990–2012 period using a decision tree model. Our main objective is to identify broad-scale patterns that associate the characteristics of geographic areas with the dominant land use/cover change process based on CORINE Land Cover (Coordination of Information on the Environment) and defined in a previously published work. Biophysical, structural and socioeconomic variables were considered as potentially explanatory of the dominant change process at municipal scale. The resulting model allowed identification of a common pattern in Portugal and Spain (urbanization being highly associated to areas already densely populated in the previous period), but also some diverging ones. In particular, dominant trends in Portuguese territory appear to be highly determined by wildfire occurrence. In contrast, Spanish municipalities showed more diverse patterns, usually associated to biophysical determinants like average forest productivity or average terrain slope.

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Section: Discussionmentioning

confidence: 97%

Determinants of Land Use/Cover Change in the Iberian Peninsula (1990–2012) at Municipal Level

Nogueira

Rico

2019

Land

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“…Many of the cited studies coincide with areas corresponding to clusters 1 and 6, which we identified in this work as hotspots of forest expansion. Although probably initiated earlier, forest expansion may have increased after the access of both countries to the European Economic Community in 1986, as a consequence of policy and market changes that accelerated the transformation of the agricultural sector, including afforestation measures under Regulation (EC) 2080/92 [15,43]. On the other hand, the net reduction of forest area in Portugal is also consistent with published literature [19,21], is largely concentrated in areas included in cluster 4 and may be related to the extent and recurrence of forest fires [44].…”

Section: Discussionmentioning

confidence: 99%

“…After the first assessment, we classified all the observed changes into a set of 8 land use/cover transitions (LCT, Figure 1), following a similar approach to Feranec et al (2010) [15]: Afforestation (LCT1), Conversion to agriculture (LCT2), Farmland abandonment (LCT3), Agricultural extensification (LCT4), Deforestation (LCT5), Change of forest composition (LCT6), Agricultural intensification (LCT7), Urbanization (LCT8). A similar approach has also been used for the Spanish case by Martínez-Fernández et al (2015) [39].…”

Section: Methodsmentioning

confidence: 99%

Land Use Changes in Iberian Peninsula 1990–2012

Nogueira

Rico

2018

Land

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This work aims to provide a comprehensive, wall-to-wall analysis of land use/cover changes in the continental areas of Portugal and Spain between 1990 and 2012. This overall objective is developed into two main research questions: (1) Whether differences between the extent and prevalence of changes exist between both countries and (2) which are the hotspots of change (areas where a given land use/cover transition dominates the landscape) in each country. We used Corine Land Cover in three different points in time (1990, 2000, 2012) to explore eight characteristic land cover transitions and carried out a cluster analysis at LAU2 level (municipalities in Spain, parishes in Portugal) that allowed to identify the areas in which each transition was dominant. The main findings include the decline of agricultural area and the increase of urbanized and artificial covers in both countries, but different trends followed by forest cover, with an increase in Spain and a decrease in Portugal. At the same time, the spatial analysis provided an overview of the main gradients of change related to tensions between agricultural intensification–extensification, on the one hand, and deforestation–afforestation, on the other.

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“…In many northern European agricultural landscapes, field margins comprise the majority of semi-natural habitats (Marshall and Moonen, 2002). In areas of intensive farming the majority of native species are found in small woodland patches (Dumortier et al, 2002;Lomba et al, 2010Lomba et al, , 2011 and in hedgerows around fields (Wagner et al, 2000).…”

Section: Improved Efficiency Of Surveillance and Monitoring And Area mentioning

confidence: 99%

Surveillance of habitats and plant diversity indicators across a regional gradient in the Iberian Peninsula

Ortega

Guerra

Honrado

et al. 2013

Ecological Indicators

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a b s t r a c tLocated in the west of the Mediterranean and with high environmental heterogeneity, the Iberian Peninsula represents a challenging region for designing and implementing observation systems for landscape, habitat and species diversity indicators. Within the framework of a project designed to set up a European Biodiversity Observation Network (EBONE), a standardized protocol for field survey was used in pilot sites located across a major gradient in Portugal and Spain. Results are presented and compared to assess the efficiency of the method in detecting patterns along this gradient. These sites represent different types of Iberian landscapes selected using a stratified random procedure implemented in the Madrid province (Spain) and in the north of Portugal. Species and habitat richness and diversity (as well as their components) are compared in their relation to environmental gradients and survey area. Results from spatial analyses of landscape heterogeneity are also presented and discussed in relation to appropriate indicators. The implications for setting up cost-efficient observation schemes that capture the key indicators effectively are discussed. Perspectives for integration with complementary monitoring schemes targeted at key species, habitat and landscape indicators are also discussed in order to optimize the power and efficiency of these observation networks.

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Effects of multiple factors on plant diversity of forest fragments in intensive farmland of Northern Portugal

Cited by 22 publications

References 50 publications

Determinants of Land Use/Cover Change in the Iberian Peninsula (1990–2012) at Municipal Level

Determinants of Land Use/Cover Change in the Iberian Peninsula (1990–2012) at Municipal Level

Land Use Changes in Iberian Peninsula 1990–2012

Surveillance of habitats and plant diversity indicators across a regional gradient in the Iberian Peninsula

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