Characteristics and evaluation of living shoreline vitality in Fujian
In the context of global climate change,sea level rise and frequent storm surge events have brought se-vere challenges to coastal areas,how to protect the coast from erosion,prevent the loss of socio-economic property and maintain the balance of the coastal zone ecosystem are issues that cannot be ignored for the sustainable develop-ment of coastal zones.The living shoreline technology based on nature-based solution(NbS)using near-natural ecological restoration and protection measures are realized independently with natural materials in the low-energy shoreline and/or supplemented with artificial measures in the high-energy shoreline.Meanwhile,the functions of coastal disaster prevention and mitigation are realize,the stability and ecological function of the natural ecosystems in the coastal zones maintained and the potential of shoreline vitality agitated.In this paper,the entropy weight method was used to construct living shoreline vitality evaluation system in Fujian Province,and the vitality evalua-tion was carried out in three aspects,i.e.protection safety,ecological resilience and economic development,and the data of 2010 and 2020 from the same areas were compared.Results showed that the living shoreline vitality in the study area showed an initial state with vitality value of 0.20～0.67(the higher the number,the stronger the vi-tality).However,the value is low in the northern area and is middle high and low in the south.In the past ten years,the implementation of coastal ecological restoration projects has improved the coastal vitality overall in the study area and it increased significantly in a number of high-vitality coastal sections.The overall improvement trend of the central and southern coastal vitality is better than that in the northern part.Water quality,cyclone index,bi-ological shoreline length,wetland area and other factors have the most significant impacts on shoreline vitality char-acteristics.Coastal development and utilization based on the NbS and abundant soft revetment protection also pro-duce good ecological benefits and economic vitality.The improvement of living shoreline vitality should adopt the method according to local conditions for rational and efficient use of coastal resources.Combining both the optimiza-tion of regional ecological value and economic output value is necessary to construct living shoreline vitality evalua-tion system of development model and provide a scientific basis for the sustainable development of protection capaci-ty,ecological vitality and economic potential.
marine geologyliving shorelinecharacteristicevaluatenature-based solutiondevelopment modeFujian Province
万方数据
维普
