Search results for " Geography"
showing 10 items of 1389 documents
Soil Erosion on Mountain Trails in Eastern Iberian Peninsula
2020
A review on trial erosion shows that soil erosion rates are one to three orders of magnitude higher than the ones recommended as sustainable. This is threatening the sustainable managements of mountain terrains, mainly in the popular hiking paths. The warm temperatures characterize Eastern Spain in winter, which results in visitors from northern Europe to walk in the coastal land mountainous terrain. This increases the pressure to the currently highly visited most popular paths. We selected representative transects of the trails of Serra de Bérnia, Puigcampana, Penyagolosa, Montcabré, Serra del Sit, Aitana, Les Tres Creus, Caroig, Cupurutxo and Circ de la Safor. All the selected study sites…
The migration–tourism nexus in the EU28
2020
This study explores the nexus between tourism and migration on an intra-European scale over the period 2000–2015. Complex-network analysis and gravity models were the investigation methods preferred. For each year under study, we built two country-to-country networks to map and reveal the connections between states as shaped by migration stocks and tourism flows, respectively. Then, the main determinants of the correlation patterns between the two networks were investigated by several econometric analysis. Results point to a quite similar topological structure for the tourism and migration networks as well as to a significant and reciprocal direct influence between tourism and migration mo…
Vitesse, accessibilité et étalement urbain ; analyse et application à l'aire urbaine dijonnaise
2003
The set of themes of the city is approached primarily by the means of the residential density. This concept is analyzed from a purely conceptual point of view, then more theoretical (thus making use of rather traditional econometric models: Clark, Newling) for finally being applied to the agglomeration dijonnaise like with its urban surface. One releases the great urban structures thus revealing an intermediate city between the model monocentric and polycentric. The two components are analyzed successively starting from the concept of residential density. Taking as assumption that the cities are dynamic, the second stage is that of urban sprawl out. A first introductory approach attempts to…
The ABCflux database: Arctic-boreal CO2flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems
2022
Past efforts to synthesize and quantify the magnitude and change in carbon dioxide (CO2) fluxes in terrestrial ecosystems across the rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but were limited in their geographical and temporal coverage. Furthermore, these efforts have been based on data aggregated over varying time periods, often with only minimal site ancillary data, thus limiting their potential to be used in large-scale carbon budget assessments. To bridge these gaps, we developed a standardized monthly database of Arctic–boreal CO2 fluxes (ABCflux) that aggregates in situ measurements of terrestrial net ecosystem CO2 exchange and its derived partitioned…
The green granary of the Empire? Insights into olive agroforestry in Sicily (Italy) from the Roman past and the present
2023
Groves with ancient olive trees (Olea europaea L.) could be considered remnants of old agroforestry systems. Anything but static, these agro-ecosystems have undergone drastic transformational processes in Mediterranean countries, where abandonment or intensification have been observed far more than continuity, expansion or renaissance, leading to environmental degradation of rural areas. Starting from this assumption and inspired by historical ecology and historical geography, we consider centuries-old olive trees as living archives of human-nature interactions and are thus proxies of past agroforestry. Our aim is to better understand what has driven dynamics of change and persistence, happ…
Typology and Representation of Alterations in Territorial Units: A Proposal
2018
Abstract This article proposes a typology of boundary changes in territorial units at two points in time. The different types of changes are organized in a hierarchy and represented homogeneously, independently of the number of territorial units involved and of the changes to them. Each alteration is described precisely and unambiguously, and it is codified to allow the information to be treated automatically. In addition to providing efficient storage of the information about these changes, a canonical representation facilitates the automatic detection of inconsistencies in the database. At the same time, the typology allows us to define backward and forward equivalence rules, which helps …
Twenty-three unsolved problems in hydrology (UPH) – a community perspective
2019
Publisher's version (útgefin grein)
Esplorare la povertà urbana in una prospettiva mediterranea: il caso del quartiere CEP a Palermo
2020
The paper addresses the issue of the multiple dimensions of urban poverty through mixed analyses carried out in the CEP neighborhood of Palermo. The article tries to avoid incurring the dichotomy between the Global North and South and adopts a Mediterranean perspective, attempting to describe the neighborhood from below and starting from the voices of its youngest inhabitants. In light of the most recent pandemic events, the issue of urban poverty deserves to be explored with renewed academic debates.
“Cognitive Economic Geography” – Evolution of Regional Strategies
2013
Abstract The aim of this article is to present the role of cognitive approach in economic geography and regional innovation strategies based on theory evolution as well as the case of regional development strategies evolution for an old industrial region in emerging economic spaces.
Educational Research and Innovation: The Case of School Geography
2013
El divorcio existente entre la investigación educativa universitaria y la innovación didáctica en la educación básica y obligatoria se ha convertido en un obstáculo para la mejora del aprendizaje de las personas. Los proyectos curriculares constituyen una alternativa para superar este problema. En el caso de la geografía escolar mostramos ejemplos empíricos de cómo es posible complementar la innovación con proyectos de investigación. Para ello hemos utilizado una propuesta de estudio del medio urbano.