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Abstract

The article is an attempt at analyzing the development processes of the French peripheral region, Nord-Pas-de-Calais. This region has been a subject of regional policy for many years, including significant public and private sector investments to help transform the economy. The analysis of key events in the context of the path dependency theory shows that, despite a marked increase in innovation, socio-economic development and some investment success, for the region located between Paris, London and Brussels it is very diffi cult to compete for growth factors.

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Authors and Affiliations

Wojciech Dziemianowicz
Agnieszka Laskowska
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Abstract

The control of water erosion is an important economic and societal challenge. Reduction of the agronomic potential of the parcels, muddy flows, siltation of dams are harmful consequences that mobilize farmers, water managers, local authorities and scientific researchers. This study focuses on mapping and quantifying seasonal soil losses in the territory of the former Nord-Pas-de- Calais administrative region, using the Revised Universal Soil Loss Equation (RUSLE) which incorporates five factors: rainfall erosivity, soil erodibility, topography, land use and erosion control practices. The seasonal (3-months) time scale is chosen to better account for the parameters governing the soil water erosion, especially rainfall and vegetation cover, that show great asynchronous intra-annual variability. Also, high resolution data concerning agricultural plots allows to evaluate which type of culture are the more subject to soil losses. In Nord-Pas-de-Calais, water erosion occurs almost ubiquitously, but the areas characterized by steep slopes are the most at risk (Artois Hills and Flanders), with loss rates up to 54 t∙ha–1∙y–1. The majority of erosion occurs during fall (46% of the computed annual losses of 1.69∙Mt), on plots left bare after harvest (especially corn and beets crops). The study also demonstrates that extending the intercrop technique over the region, and therefore maintaining a fall and winter cover, could reduce the soil losses by 37%.
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Authors and Affiliations

Wafae Nouaim
1
ORCID: ORCID
Dimitri Rambourg
2
ORCID: ORCID
Mohamed Merzouki
1
ORCID: ORCID
Abderrazak El Harti
1
ORCID: ORCID
Ismail Karaoui
1
ORCID: ORCID

  1. Faculty of Sciences and Techniques, Team of Remote Sensing and GIS Applied to Geosciences and Environment, University Sultan Moulay Slimane, Av Med V, BP 591 Beni-Mellal 23000, Maroc
  2. Institut Terre et Environnement de Strasbourg, University of Strasbourg/EOST/ENGEES, CNRS UMR 7063, Strasbourg Cedex, France

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