Risk assessment of coastal erosion in the Fujian Province

Coastal erosion and accretion has always existed in the coastal zone systems,and sculptured the present coastlines. However,with increasing human activities and ongoing global climate change,the coasts have been suffering more and more erosion,leading to severe land loss and aggravating financial burden. This study presented an integrated methodology for risk assessment of coastal erosion,and described the methods for coastal erosion risk assessment,and provided some helpful guidances for coastal erosion risk management. The analytic hierarchy process and the fuzzy set theory were adopted in the study to establish the methodology. Taking the Fujian coast as an example,this study assessed its coastal erosion risk and compiled the risk map,and the results obtained were consistent with the actual situation and confirmed the applicability of the method mentioned above. The system established for coastal erosion risk assessment in this study can be applied to other regions after slightly adjusting the values of the assessment indicators.