ABSTRACT The mitigation of ecosystem fragmentation is important in Target 2 of the new European B... more ABSTRACT The mitigation of ecosystem fragmentation is important in Target 2 of the new European Biodiversity strategy to 2020, aiming at the maintenance and enhancement of ecosystem services (e.g. habitat provision, disturbance regulation, climate change mitigation). Better knowledge on patterns, fragmentation processes and functional connectivity of focal ecosystem is needed within and between protected areas as well as in the wider country side. An overview of JRC activities is given on tools, models and applications for a European-wide improved and harmonised reporting on forest patterns and connectivity (fragmentation). The recently available generic, reproducible and integrated characterisation of patterns based on three models and a set of indices is presented. National profiles of forest pattern in the wider country side are shown on forest morphological shapes, fragmentation landscape pattern, edge interfaces and connectivity. The connectivity of Natura2000 forest sites is then computed in few countries (Spain, Belgium, Germany and Poland), and results allow for comparison of the connectivity index value across countries and the identification of key-sites and gaps in connectivity. The presentation finally introduces the dedicated pattern web map viewer which is now available from the European Forest Data Centre (EFDAC) for data viewing and query.
International Journal of Geographical Information Science, 2013
ABSTRACT Whereas the grassland measure results in the largest net increase of GI, the afforestati... more ABSTRACT Whereas the grassland measure results in the largest net increase of GI, the afforestation measure results in the overall largest number of hectares of key nodes and links within the network. Land conversions occur under the critical GI nodes and links, with a large increase in agricultural areas, especially for the riparian measure under critical nodes and the grassland measure under critical links. Also predominant is the swapping of land from pasture to forest under critical links with the afforestation measure. The riparian measure most increases the average size of GI components, and all three measures contribute to bridging two large components which were divided in the 2006 land-use map, thus increasing the size of the largest component by more than 50%.
This paper presents a change detection analysis based on a region growing segmentation approach w... more This paper presents a change detection analysis based on a region growing segmentation approach which combines both spectral and spatial information. The test site is a French Alpine protected area, which like many other mountain areas is characterised by a general increase of forest and woody vegetation due to the abandonment of traditional land use practices. Two Landsat images of
... Academic Status. 100% Post Doc. by Country. 100% Portugal. Related Research. 1. Combined use ... more ... Academic Status. 100% Post Doc. by Country. 100% Portugal. Related Research. 1. Combined use of socio economic analysis, remote sensing and GIS data for landslide hazard mapping using ANN. S Prabu, SS Ramakrishnan (2010). ...
The reversal from deforestation to forest increase is named forest transition. It combines factor... more The reversal from deforestation to forest increase is named forest transition. It combines factors related to social and economic development or policies attempting to overcome the possible scarcity of timber. This study focuses on forest transition in the northern Carpathians, stretching across four countries (Czech Republic, Poland, Slovakia and Ukraine) with complex history and variability with respect to present-day economical
Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VI, 2006
This study focuses on forest monitoring at landscape level on the basis of a methodology combinin... more This study focuses on forest monitoring at landscape level on the basis of a methodology combining satellite data mapping and image morphological processing. It aims to contribute to reporting on trends of forest fragmentation and connectivity, by using forest spatial pattern metrics. ...
This study aims at developing a satellite-based methodology for the implementation of two Ministe... more This study aims at developing a satellite-based methodology for the implementation of two Ministerial Conference on the Protection of Forests in Europe indicators for the European Alpine Bio-geographic region, and their changes over time: (1) area of forest cover and (2) forest spatial pattern. The northern Carpathians were selected as a study area due to the documented recent increase of
ABSTRACT The mitigation of ecosystem fragmentation is important in Target 2 of the new European B... more ABSTRACT The mitigation of ecosystem fragmentation is important in Target 2 of the new European Biodiversity strategy to 2020, aiming at the maintenance and enhancement of ecosystem services (e.g. habitat provision, disturbance regulation, climate change mitigation). Better knowledge on patterns, fragmentation processes and functional connectivity of focal ecosystem is needed within and between protected areas as well as in the wider country side. An overview of JRC activities is given on tools, models and applications for a European-wide improved and harmonised reporting on forest patterns and connectivity (fragmentation). The recently available generic, reproducible and integrated characterisation of patterns based on three models and a set of indices is presented. National profiles of forest pattern in the wider country side are shown on forest morphological shapes, fragmentation landscape pattern, edge interfaces and connectivity. The connectivity of Natura2000 forest sites is then computed in few countries (Spain, Belgium, Germany and Poland), and results allow for comparison of the connectivity index value across countries and the identification of key-sites and gaps in connectivity. The presentation finally introduces the dedicated pattern web map viewer which is now available from the European Forest Data Centre (EFDAC) for data viewing and query.
International Journal of Geographical Information Science, 2013
ABSTRACT Whereas the grassland measure results in the largest net increase of GI, the afforestati... more ABSTRACT Whereas the grassland measure results in the largest net increase of GI, the afforestation measure results in the overall largest number of hectares of key nodes and links within the network. Land conversions occur under the critical GI nodes and links, with a large increase in agricultural areas, especially for the riparian measure under critical nodes and the grassland measure under critical links. Also predominant is the swapping of land from pasture to forest under critical links with the afforestation measure. The riparian measure most increases the average size of GI components, and all three measures contribute to bridging two large components which were divided in the 2006 land-use map, thus increasing the size of the largest component by more than 50%.
This paper presents a change detection analysis based on a region growing segmentation approach w... more This paper presents a change detection analysis based on a region growing segmentation approach which combines both spectral and spatial information. The test site is a French Alpine protected area, which like many other mountain areas is characterised by a general increase of forest and woody vegetation due to the abandonment of traditional land use practices. Two Landsat images of
... Academic Status. 100% Post Doc. by Country. 100% Portugal. Related Research. 1. Combined use ... more ... Academic Status. 100% Post Doc. by Country. 100% Portugal. Related Research. 1. Combined use of socio economic analysis, remote sensing and GIS data for landslide hazard mapping using ANN. S Prabu, SS Ramakrishnan (2010). ...
The reversal from deforestation to forest increase is named forest transition. It combines factor... more The reversal from deforestation to forest increase is named forest transition. It combines factors related to social and economic development or policies attempting to overcome the possible scarcity of timber. This study focuses on forest transition in the northern Carpathians, stretching across four countries (Czech Republic, Poland, Slovakia and Ukraine) with complex history and variability with respect to present-day economical
Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VI, 2006
This study focuses on forest monitoring at landscape level on the basis of a methodology combinin... more This study focuses on forest monitoring at landscape level on the basis of a methodology combining satellite data mapping and image morphological processing. It aims to contribute to reporting on trends of forest fragmentation and connectivity, by using forest spatial pattern metrics. ...
This study aims at developing a satellite-based methodology for the implementation of two Ministe... more This study aims at developing a satellite-based methodology for the implementation of two Ministerial Conference on the Protection of Forests in Europe indicators for the European Alpine Bio-geographic region, and their changes over time: (1) area of forest cover and (2) forest spatial pattern. The northern Carpathians were selected as a study area due to the documented recent increase of
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Papers by C. Estreguil