Assessment of water-induced soil erosion as a threat to cultural heritage sites: the case of Chania prefecture, Crete Island, Greece

Big Earth Data

Branka Cuca¹  Athos Agapiou²  Nikos Papadopoulos³  Manolis G. Grillakis³  Dimitrios D. Alexakis³  Christos Polykretis³  Apostolos Sarris³ 

[1] Department of Architecture, Built Environment and Construction Engineering, Milan, Italy;Department of Civil Engineering and Geomatics, Cyprus University of Technology, Limassol, Cyprus;Laboratory of Geophysical - Satellite Remote Sensing and Archaeo-environment (Geosat ReSeArch), Institute for Mediterranean Studies, Foundation for Research and Technology - Hellas;

关键词: cultural heritage;    soil erosion;    usped model;    gis;    crete;   

DOI  :  10.1080/20964471.2021.1923231

来源: DOAJ

【 摘 要 】

Among the environmental threats, the intensification of natural hazards, such as soil erosion may threaten the integrity and value of cultural heritage sites. In this framework, the present study’s main objective was to identify archaeological sites susceptible by soil erosion, taking the case study of Chania prefecture in Crete Island. Remotely sensed and other available geospatial datasets were analyzed in a GIS-based empirical model, namely Unit Stream Power Erosion and Deposition (USPED), to estimate the average annual soil loss and deposition rates due to water-induced erosion in the study area. The resultant erosion map was then intersected with the locations and surrounding zones of the known archaeological sites for identifying the sites and the portions of their vicinity being at risk. The results revealed that Chania prefecture and its cultural heritage are significantly affected by both soil loss and deposition processes. Between the two processes, soil loss was found to be more intensive, influencing a larger part of the prefecture (especially to the west) as well as a higher amount of archaeological sites. The extreme and high soil loss classes were also detected to cover the most considerable portion of the sites’ surrounding area. The identification of the archaeological sites being most exposed to soil erosion hazard can constitute a basis for cultural heritage managers in order to take preventive preservation measures and develop specific risk mitigation strategies.

【 授权许可】

Unknown