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

作　　者：Christos Polykretis Dimitrios D.Alexakis Manolis G.Grillakis Athos Agapiou Branka Cuca Nikos Papadopoulos Apostolos Sarris 

机构地区：[1]Laboratory of Geophysical-Satellite Remote Sensing and Archaeo-environment(Geosat ReSeArch),Institute for Mediterranean Studies,Foundation for Research and Technology-Hellas,Crete,Greece [2]School of Environmental Engineering,Technical University of Crete,Chania,Crete,Greece [3]Department of Civil Engineering and Geomatics,Cyprus University of Technology,Limassol,Cyprus [4]Department of Architecture,Built Environment and Construction Engineering,Milan,Italy [5]Digital Humanities Geoinformatics Lab,Archaeological Research Unit,Department of History and Archaeology,University of Cyprus,Nicosia,Cyprus

出　　处：《Big Earth Data》2022年第4期561-579,共19页地球大数据（英文）

基　　金：supported by the Hellenic Foundation for Research and Innovation(HFRI)of General Secretariat for Research and Technology(GSRT)under Grant No 651.

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 waterinduced 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 preserva-tion measures and develop specific risk mitigation strategies.

关 键 词：Cultural heritage soil erosion USPED model GIS CRETE 

分 类 号：S15[农业科学—土壤学]