A framework to analyse urban sprawl in the French Mediterranean coastal zone

Salais, Robert; Fox, Dennis; Boulay, Guilhem; Grandclement, Antoine; Garrido, Marie; Pasqualini, Vanina; Prévost, Aurélie; Schleyer-Lindenmann, Alexandra; Trémélo, Marie-Laure

doi:10.1007/s10113-018-1425-4

Cited by 25 publications

(12 citation statements)

References 29 publications

(24 reference statements)

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“…The multivariate analysis clearly indicates the long-term competition between landuse, highlighting the relationship between 'predators' (urban settlements and more recently forests) and 'prey' (arable land and more recently pastures). This interpretation, in line with earlier studies developed in the Mediterranean basin, highlights the substantial dichotomy between 'predators' with a competitive advantage (urban settlements) and more marginal actors (forests) that opportunistically occupy landscape niches left free from abandonment of agricultural land as a result of real estate speculation [70]. This dynamic is visible in marginal areas, while being occasionally observed at the fringe, for example in contexts where physical (e.g., steepness and accessibility) and/or regulatory (planning/zoning) constraints to building are more pronounced [71][72][73].…”

Section: Discussionsupporting

confidence: 86%

“…Therefore, a recent analysis [69] argues that there is a need to focus more on the form and quality of urbanization processes rather than simply on the volume and speed of urbanization. Thus, the measure of the amounts of land in urban use and their spatial configuration remains crucial to provide useful information on anticipating future needs and to ensure an adequate supply of public goods such as infrastructure, open spaces, and common facilities for urban expansion [70].…”

Section: Discussionmentioning

confidence: 99%

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Toward a Dualistic Growth? Population Increase and Land-Use Change in Rome, Italy

Bianchini

Egidi

Alhuseen

et al. 2021

Land

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The spatial mismatch between population growth and settlement expansion is at the base of current models of urban growth. Empirical evidence is increasingly required to inform planning measures promoting urban containment in the context of a stable (or declining) population. In these regards, per-capita indicators of land-use change can be adopted with the aim at evaluating long-term sustainability of urbanization processes. The present study assesses spatial variations in per-capita indicators of land-use change in Rome, Central Italy, at five years (1949, 1974, 1999, 2008, and 2016) with the final objective of quantifying the mismatch between urban expansion and population growth. Originally specialized in agricultural productions, Rome’s metropolitan area is a paradigmatic example of dispersed urban expansion in the Mediterranean basin. By considering multiple land-use dynamics, per-capita indicators of landscape change delineated three distinctive waves of growth corresponding with urbanization, suburbanization, and a more mixed stage with counter-urbanization and re-urbanization impulses. By reflecting different socioeconomic contexts on a local scale, urban fabric and forests were identified as the ‘winner’ classes, expanding homogeneously over time at the expense of cropland. Agricultural landscapes experienced a more heterogeneous trend with arable land and pastures declining systematically and more fragmented land classes (e.g., vineyards and olive groves) displaying stable (or slightly increasing) trends. The continuous reduction of per-capita surface area of cropland that’s supports a reduced production base, which is now insufficient to satisfy the rising demand for fresh food at the metropolitan scale, indicates the unsustainability of the current development in Rome and more generally in the whole Mediterranean basin, a region specialized traditionally in (proximity) agricultural productions.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Toward a Dualistic Growth? Population Increase and Land-Use Change in Rome, Italy

Bianchini

Egidi

Alhuseen

et al. 2021

Land

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“…Therefore, this can be intended as a profitable conservation action of the olive grove landscape's, read evolutionarily, or adaptation strategy. In so doing, the risks connected to a traumatic jump towards completely new agricultural systems (such as fruit trees or the introduction of new exotic lants) would be minimized [66].…”

Section: Discussionmentioning

confidence: 99%

How Ecosystem Services Can Strengthen the Regeneration Policies for Monumental Olive Groves Destroyed by Xylella fastidiosa Bacterium in a Peri-Urban Area

et al. 2021

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The Apulian Region (Italy) is a socio-ecological system shaped by the millennial co-evolution between human actions and ecological processes. It is characterized by monumental olive groves protected from Regional Law 14/2007 for the cultural value of the landscape, currently threatened by the spread of a devastating phytopathogen, the bacteria Xylella fastidiosa. The aim of this paper is to apply landscape resilience analysis focusing on ecosystem services to understand the potential effects and trade-offs of regeneration policies in a peri-urban area characterized by monumental olive groves land cover. The study involved land-cover and land-use analysis, supported by a survey on the inhabitants and an ecosystem services analysis. The results showed a mismatch between the agroecosystem and the social and economic use linked to leisure or hospitality. The study area was defined as a peri-urban landscape characterized by tourist use. From the interviews of the users, the cultural heritage of olive groves seems linked to the presence of olive trees like a status quo of the landscape and olive oil productions. The culture aspect could thus be preserved by changing the type of olive trees. In addition, the analysis showed that the microclimate could be preserved and enhanced in terms of air temperature and thermal comfort, by replacing the olive trees with varieties resistant to Xylella, such as cv. Leccino. Therefore, regeneration policies that promote replacing dead olive groves with new olive trees could be efficient to stimulate social components of the landscape and improve the resilience of ecosystem services in peri-urban areas in the interest of the cultural heritage of the users and benefits that they provide. An ecosystem services analysis at a local scale could be a strategy for an integrated regenerate approach between land-use and land-cover with social, ecological, and economic evolutions vision orientated to a sustainable and desirable future.

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“…Several factors increase the risk of run-off flooding: (1) a higher intensity of precipitations (Trenberth, 2011) and ( 2) urbanization (Kundzewicz et al, 2014). Urbanization jeopardizes the territory, reducing permeable surfaces such as those found in French Mediterranean coastal zones (Robert et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Parameters influencing run-off on vegetated urban soils: A case study in Marseilles, France

2020

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In urban areas, episodes of extreme precipitation may generate run-off floods, but urban soils are seldom considered in spatial planning documents. Our aim was to assess the infiltration of vegetated urban soils and to identify the soil parameters affecting infiltration in order to explore the potential of these soils for run-off mitigation under a Mediterranean climate with extreme precipitation episodes. We compared vegetated soils in the "urban" zone of the Marseilles' 16 th district (France) either lying on former clay quarries or tile factories (T) or not (NT) and with different land-uses. We used a simplified method to measure field saturated hydraulic conductivity (Kfs), measured penetration resistance in the first 0.15 m (Qd) and analysed physico-chemical properties in the first horizon. Levels of runoff production were estimated according to Kfs and an adaptation of USDA Hydrologic Soil Groups. All soils were Technosols or Anthrosols regardless of their prior history. We found that land-use history influenced Kfs, with T soils and soils with current vegetated land-use younger than 13 years having lower Kfs than NT soils and soils with land-use older than 13 years. Soil organic matter content influenced Kfs positively when soils were young, while vegetation cover and penetration resistance (most of the soils had Qd > 2 MPa) had not a clear effect on Kfs. Overall, combining Kfs and soil depth, 14.3 % of the T soils and 84.6 % of the NT soils had low levels of run-off production. It is therefore recommended that 1) Technosols or Anthrosols should be characterised for their unique physicochemical and physical properties but also for their land-use history, and 2) the infiltration of these soils should be considered in spatial planning documents.

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A framework to analyse urban sprawl in the French Mediterranean coastal zone

Cited by 25 publications

References 29 publications

Toward a Dualistic Growth? Population Increase and Land-Use Change in Rome, Italy

Toward a Dualistic Growth? Population Increase and Land-Use Change in Rome, Italy

How Ecosystem Services Can Strengthen the Regeneration Policies for Monumental Olive Groves Destroyed by Xylella fastidiosa Bacterium in a Peri-Urban Area

Parameters influencing run-off on vegetated urban soils: A case study in Marseilles, France

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