Monitoring rural-urban transformation in the coastal region of Rabat-Sale-Kenitra, Morocco

PLoS One. 2023 Aug 31;18(8):e0290829. doi: 10.1371/journal.pone.0290829. eCollection 2023.

Abstract

Worldwide urbanization drives rural-urban transformation (RUT) which has major consequences in many countries of the Global South where there is an urgent need to better understand and manage the underlying processes and consequences for ecosystem services. To fill existing knowledge gaps on the extent and time course of RUT in Morocco, this study focused on (i) analyzing the spatial patterns of rural-urban transformation in the Rabat-Sale-Kenitra (RSK) region from 1972 to 2020, (ii) identifying key mechanisms of change, and (iii) defining the main driving forces behind the spatial transformation patterns. To this end, we processed data of the Landsat free archive, historical grayscale Corona images, and nighttime lights datasets on Google Earth Engine (GEE) using machine learning classifiers and LandTrendr spectral-temporal segmentation algorithms. With an overall accuracy (OA) ranging from 88-95%, the results revealed that during the study period the RSK region experienced a 473% growth of horizontal built-up reflected in an area increase from 63.4 km2 to 299.9 km2. The main changes occurred along the Kenitra-Rabat-Temara axis and in central cities connected to the main road network. The horizontal expansion of large and medium-sized cities led to the formation of a Rural-Urban Interface (RUI) on the outskirts. The urban sprawl of some cities has affected the surrounding rural lands within the RUI. Environmental, social, economic, and political forces have interacted in shaping the changes in rural-urban landscapes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms*
  • Archives
  • Cities
  • Ecosystem*
  • Morocco

Grants and funding

We thankfully acknowledge generous funding from University of Kassel for Dr. Thanh Nguyen and through the Erasmus+ Programme of the European Union for travel of the other authors. The work greatly benefited from methodological discussions within FOR2432 "Social-Ecological Systems in the Indian Rural-Urban Interface: Functions, Scales, and Dynamics of Transition" funded by the Deutsche Forschungsgemeinschaft (DFG, Project No. 279374797). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.