Impervious Land Expansion as a Control Parameter for Climate-Resilient Planning on the Mediterranean Coast: Evidence from Greece

Abstract

Impervious land expansion is linked to ecosystem fragmentation and degradation, posing threats to nature conservation and multiplying climate change impacts. This is particularly true on the Mediterranean coast, where persistent urbanization is coupled with tourism development, further intensifying coastal erosion, flood risk, heat stress and biodiversity loss, while decreasing carbon sequestration. In this research, high-resolution imperviousness data were analyzed through a geospatial methodology to detect patterns and processes in a heavily burdened Mediterranean coastal area, namely Greece. The methodology was structured on a set of GIS tools, analyzing the distribution of new impervious cover between 2006 and 2018, to evaluate pressures exerted on coastal territories and on the environmental protection network. The results revealed relatively slow rates of impervious land expansion at a nationwide scale, mostly attributed to the economic recession period in Greece. However, certain locations exhibited continuing artificialization of land even within Natura 2000 areas, while future pressures on coastal territories are expected to increase due to the restarting of construction activity and the continuing dynamic of the mass tourism sector. The conclusions imply that controlling for imperviousness is important in order to develop spatial planning policies for climate resilience, which should be decisively enforced in the Mediterranean to prevent a business-as-usual scenario.

From sustainability to resilience: tracing the transition path for spatial planning policy in Greece

“…Cities and settlements should be able to return to a state of equilibrium in cases of economic crises (e.g. the financial crisis of 2008), unprecedented social transformations (e.g., refugee crises), or extreme natural phenomena, whether sudden (i.e., shocks, such as earthquakes, floods, fires, heatwave events) or long-term (i.e., disturbances, such as climate change) (Asprogerakas and Tasopoulou, 2021;Asprogerakas and Tasopoulou, 2019;Markada and Asprogerakas, 2020;Lagarias, 2023). According to Datola et al (2022), an assortment of urban attributes can contribute to maintaining and improving urban systems' resilience.…”