...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Coastal Conservation >Spatio-temporal evolution of coastlines of sand-barrier lagoons over 26 years through historic Landsat imagery in Lingshui County, Hainan Province, China
【24h】

Spatio-temporal evolution of coastlines of sand-barrier lagoons over 26 years through historic Landsat imagery in Lingshui County, Hainan Province, China

机译：26年通过历史悠久的Landsat意象在中国海南省凌辉县海岸地区的沙滩泻湖海岸线的时空演变

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Coastlines of sand-barrier lagoons have provided significant locations for coastal economic development as has frequently occurred along the eastern coast of Hainan Island in southern China. Here, increased levels of human activity have greatly destabilized this ecosystem, subjecting it to major damage. The present study used innovative technology to classify and evaluate six phases of overlapping coastlines in Li'an and Xincun Lagoons in Lingshui County in southeastern Hainan Island between 1987 and 2013. This included the retrieval and integrated analysis of remote sensing images that was combined with data related to ocean dynamics and bathymetric surveys. Average historic high-tide lines were acquired by extracting humidity parameters from images using the Kauth-Thomas Transformation. Variations in the position and length of multiple coastlines were analyzed using GIS with a mathematical and statistical approach. The lengths of anthropogenic coastlines increased by 50% and moved seawards by 94.04 m in Li'an and 102.56 m in Xincun. Meanwhile, the areas in the Xincun and Li'an Lagoons decreased from 21.17 km(2) to 19.43 km(2) (-8.2%) and 9.94 km(2) to 7.92 km(2) (20.3%), respectively. Extensive human activity along the coastlines, such as saltwater aquaculture and farming, salt plant, and land reclamation, have profoundly altered the sedimentary geomorphology, local hydrodynamics, and the ecosystem itself. Consequently, the coastlines in Xincun and Li'an Lagoons in this newly designated pilot tourism city became vulnerable to modification. This research fills a critical gap related to the evolution of historical coastlines and provides an inventory of coastlines in support of coastal management.
机译：沙滩野生海岸线为沿海经济发展提供了重要地点，因为沿海南部海南岛东部海岸经常发生。在这里，人类活动水平的增加极大地破坏了这种生态系统，使其成为重大损害。本研究采用了创新技术，在1987年至2013年间在海南岛东南陆南岛柳山和Xincun泻湖中分类和评估了六个阶段的六个阶段。这包括对与数据相结合的遥感图像的检索和综合分析与海洋动力学和碱度调查有关。通过使用KAUTH-Thomas转换从图像中提取湿度参数来获得平均历史历史线。使用GIS分析了多个海岸线的位置和长度的变化，具有数学和统计方法。人为海岸线的长度增加了50％，在欣兰和XINCUN的102.56米中搬到了94.04米。与此同时，XINCUN和李南泻湖的地区分别从21.17公里（2）至19.43公里（2）（-8.2％）和9.94公里（2）至7.92公里（2）（20.3％）减少。沿着海岸线的广泛的人类活动，如咸水水产养殖和耕种，盐厂和土地填海层，沉积地貌，局部流体动力学和生态系统本身都有深刻地改变了沉积地貌。因此，Xincun和李安泻湖的海岸线在这个新指定的试点旅游城市变得容易修改。该研究填补了与历史海岸线的演变相关的临界差距，并提供了支持沿海管理层的海岸线库存。

著录项

相似文献

  • 外文文献
  • 中文文献
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