Spatial Correlation between Urban Planning Patterns and Vulnerability to Flooding Risk: A Case Study in Murcia (Spain)

Abstract

Cities in the Spanish Mediterranean regions have undergone an extensive process of urban growth in recent decades. This urban transformation has often failed to consider the variable of flooding in its planning. Such a situation, combined with the current meteorological changes derived from climate change phenomena that increasingly cause less frequent but more extreme rainfall events in this part of the planet, has caused a sharp increase in the vulnerability of many urban areas against flooding. This research aims to analyze, from a spatiotemporal approach, in the case study of Murcia, a Mediterranean city in southeastern Spain, the existing spatial statistical correlation between urban planning patterns of growth of the city and the increase in risk due to its current vulnerability to flooding. Using GIS-based multivariate indicators and geostatistical analysis, the behavior patterns of said correlation will be numerically evaluated, and possible future trends and scenarios for this problem will be raised.

Analysis of Correlation between Anthropization Phenomena and Landscape Values of the Territory: A GIS Framework Based on Spatial Statistics

“…If we assess the evolution of the numerical values, we observe that despite having relatively similar values in the 1960s, the atomization of the plots' structure as a consequence of increasing the number of rural roads has led to an implicit process of dispersed urbanization, configuring a territory with a landscape closer to that of a garden city than to that of a traditional orchard agricultural structure (Figure 17). This problem, which can be found in other cases of periurban agricultural spaces in Mediterranean regions (see [57][58][59]), is difficult to manage from the social point of view of policy implications [60]. In this case, traditional agricultural activity is becoming less attractive economically in the face of the economies of scale that intensive agriculture enables.…”

“…In this sense, after applying simple manual geoprocessing to determine the landscape preservation coverage ratio by plot size so that the plots remain profitable for agricultural use as opposed to their urban transformation, the proposal is to restrict this type of actions in plots of more than 5000 m 2 (this value, equivalent to a density of two houses per hectare, would cover all areas with high LVQI values unaltered to preserve the main current landscape structure, see Figure 19). This problem, which can be found in other cases of periurban agricultural spaces in Mediterranean regions (see [57][58][59]), is difficult to manage from the social point of view of policy implications [60]. In this case, traditional agricultural activity is becoming less attractive economically in the face of the economies of scale that intensive agriculture enables.…”

A városi csapadékvíz-gazdálkodás hatékonyságát befolyásoló okok

“…1-222] [21, pp. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. A vízgyűjtő alapú megközelítés magában foglalja a vízgazdálkodási tevékenységek koordinációját és integrálását egy adott vízgyűjtőn belül több joghatóság és ágazat között.…”

Challenges of territorial planning in the Medirerranean arc: a retrospective evaluation based on GIS analysis of the spatial planning instruments of the Region de Murcia

“…El impacto del turismo de masa en las franjas costeras, las derivadas urbanísticas del crecimiento urbano disperso de las ciudades, las implicaciones socioeconómicas de los modelos de crecimiento de baja densidad asociados a fenómenos de suburbanización (Salvia et al, 2023), las derivadas colaterales de una inadecuada gestión del territorio en materia de gestión de riesgos de naturales como la inundabilidad como consecuencia de los distintos fenómenos de transformación del suelo (Disse et al, 2020;García-Ayllón & Franco, 2023;Huang et al, 2023), etc. son solo algunos de los patrones habituales de lo que significa la antropización territorial de carácter difuso en estas regiones.…”

“…Datos de las dos muestras analizadas de las zonas de periurbanas oriental y occidental de la Huerta de Murcia. Este problema, que se puede encontrar en otros casos de espacios agrícolas periurbanos en regiones mediterráneas (ver (Boussougou Boussougou et al, 2021;García-Ayllón & Franco, 2023;Russo et al, 2014)) es difícil de manejar desde el punto de vista social de las implicaciones políticas (Grădinaru et al, 2019). En este caso, la actividad agrícola tradicional se está volviendo menos atractiva económicamente frente a las economías de escala que permite la agricultura intensiva.…”