Touristic urbanization and greening of coastal dune fields:A long-term assessment of a temperate sandy barrier of Argentina  

作　　者：GARZO Pedro Andrés DADON JoséRoberto ISLA Federico Ignacio 

机构地区：[1]Instituto de Investigaciones Marinas y Costeras(IIMyC-CONICET/UNMDP),Av.Juan B.Justo 2550,Mar del Plata,7600,Buenos Aires,Argentina [2]Instituto de Geología de Costas y del Cuaternario Dr.Enrique J.Schnack(IGCC-CIC/UNMDP),Funes 3350,Mar del Plata,7600,Buenos Aires,Argentina [3]Facultad de Arquitectura,Diseño y Urbanismo,Centro de Investigaciones Gestión de Espacios Costeros(GEC-FADU/UBA),Universidad de Buenos Aires,Intendente Güiraldes 2160,Pabellón Ⅲ,Piso 4,Ciudad Autónoma de Buenos Aires,1428,Argentina [4]Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET),Buenos Aires,Argentina

出　　处：《Journal of Geographical Sciences》2025年第1期206-230,共25页地理学报(英文版)

基　　金：supported by the Ministry of Science,Technology and Innovation of Argentina trough the project“Topografía,escurrimiento superficial y monitoreo de playas en el Partido de Villa Gesell,provincia de Buenos Aires”(Impact.AR N°106-RESOL-2022-224-APN-SACT#MCT);by the Nacional Council of Scientific and Technical Research(CONICET)through the project“Impactos de la reversión del nivel del mar en Buenos Aires,Argentina”(PIP 21/2311220200100041CO-RESOL-2021-1639-APN-DIR#CONICET)。

摘　　要：Dune barrier systems represent highly sought-after coastal landscapes for tourism and urban development around the world.However,a century ago,they were considered hazardous environments due to their great dynamic nature.As a result,stabilization practices were considered necessary.The systematic introduction of fast-growing exotic trees helped stabilize the sand,making it easier for tourism urbanization to take place,but also leading to erosion processes.This paper aims to assess long-term changes in vegetation cover over a large temperate barrier in Argentina.This complex region includes urban resorts,afforestation zones,and protected areas.A GIS-based geospatial analysis was conducted using a large satellite database(>350 images),and the future evolution of the vegetation was modeled.The results revealed two primary spatiotemporal patterns associated with a gradual expansion of vegetation cover,accompanied by a concurrent reduction in sandy areas.In 1986,the dune area comprised 75%more surface than vegetation,whereas in 2021,it represented 60%less than vegetation.Furthermore,the 2050 scenario suggests a potential 40%reduction of dunes in certain areas.It is necessary to enhance management actions aimed at maintaining dune mobility and ensuring local and regional sediment balance.Long-term management strategies must focus on restoring native plant communities and controlling invasive species,and avoiding new dune fixation initiatives based on the introduction of exotic species.

关 键 词：nature reserves AFFORESTATION sediment balance dune management NDVI 

分 类 号：H32[语言文字—法语]