• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium "Sediment dynamics in changing environments" >Managing coastal erosion: from long-term coastal evolution to seasonal shoreline changes
【24h】

Managing coastal erosion: from long-term coastal evolution to seasonal shoreline changes

机译：管理沿海侵蚀：从长期的沿海演变到季节性海岸线变化

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Erosion problems along the southern Brazilian coast are evaluated, taking into account the complex interactions of long- and short-term natural processes and socio-economic factors. Coastal evolution during the Holocene are considered, together with shoreline changes in the shorter term, to measure magnitudes of changes relevant to coastal management (using aerial photographs, DGPS mapping and beach profiles). This study focuses on specific sites to illustrate the importance of integrating processes acting at different spatial and temporal scales to define the best management practice to deal with coastal erosion. One of the case studies is the area of Hermenegildo, a small beach village built on top of the dunes, in a flat, low-lying coastal plain. The settlement is experiencing long-term coastal retreat and often is threatened by erosion during storms. As the local government does not have a policy to regulate construction of coastal defences, the Hermenegildo coastline is protected by a range of amateur schemes initiated by individual property owners. Due to a public action filed in 2005, the local government now is obliged by law to map and deal with illegal occupation in dune areas (which are protected by the Federal Constitution), and to establish a plan of coastal uses and regulations. Based on the available data, potential management approaches are evaluated in terms of long-term sustainability, and economic and technical viability.
机译：沿南部的巴西海岸侵蚀问题进行评估，并考虑到长期和短期的自然进程和社会经济因素的复杂的相互作用。全新世时期沿海发达演化认为，在短期内改变的海岸线一起，来衡量有关海岸管理的变化幅度（使用航拍照片，DGPS定位和海滩剖面）。本研究着重于特定部位来说明积分过程在不同的时间和空间尺度行事，以确定最佳管理实践，以应对海岸侵蚀的重要性。其中一个案例是Hermenegildo，建立在沙丘之上的小沙滩村一带，在平坦，低洼的沿海平原。该和解协议正在经历长期的沿海撤退，往往被侵蚀风暴期间的威胁。由于当地政府没有一个政策来规范海防建设，Hermenegildo海岸线是由一系列由个体业主发起的业余方案的保护。由于在2005年提起的公益行动，当地政府现在必须依法地图和应对沙丘区（由联邦宪法保护的）非法占领，并建立沿海用途和法规的计划。根据现有的数据，潜在的管理办法在长期可持续发展，以及经济和技术可行性进行评价。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号