摘要
向海滩抛沙养护是当前抵御海岸侵蚀的最佳措施。近几十年来,在西方发达国家发展很快,我国尚处于起步阶段,但近2～3年发展迅速。根据近两年的调查,截至2009年底已有十多处受侵蚀岸段完成或基本完成了海滩养护工程,其中13个典型养护岸段岸线总长度10.39km,共向海滩抛沙约202.7万m3,平均单宽抛沙率约196.3m3/m,大部分养滩工程均可稳定30～60m宽的干滩,个别养护工程不尽人意,存在砾化、泥化和快速蚀退等隐患。与国外养滩业比较,我国养滩工程具有规模小,发展快,类型齐全和软、硬工程兼顾的特点。目前来看,在养滩分类、养滩标准和寿命预测等法制管理措施方面尚需加强。
A set of beach nourishment projects for 13 beaches in China,which were under severe erosion,have been completed or basically completed,after two years of implementation.The projects cover a total of 10.39 km of coast line.The total volume of sand used is about 2 027 000 m3,196.3 m3/m coastline on average.Most of the beach nourishment work can keep a dry beach around 50m in width.Some of projects are not very effective,since the sand has the tendency to become coarser or muddy,and may be eroded away soon.Compared with the similar projects abroad,the beach nourishment in China is characterized by its small scale,rapid development,wide range and that both soft and hard engineering methods were used.There is still much work to do,such as the classification of beach nourishment,the establishment of evaluation standards,and prediction of beach＇s lifespan as well as rationale management.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2011年第3期133-139,共7页
Marine Geology & Quaternary Geology
基金
海洋公益项目"山东省砂质海岸生境养护和修复技术研究"(200905008-4)
关键词
海滩养护
发展
养滩特点
寿命
评估标准
beach nourishment
development
characteristic
type of beach nourishment project
assessment criteria
