1990-2015年浙江省大陆岸线变迁与开发利用空间格局变化

发布时间：2018-01-03 21:47

本文关键词：1990-2015年浙江省大陆岸线变迁与开发利用空间格局变化　出处：《地理研究》2017年06期 　论文类型：期刊论文

【摘要】：分析海岸线变迁及开发利用空间格局变化对加强岸线资源管理,推动海岸带地区可持续发展具有重要意义。以1990-2015年6期的TM/OLI遥感影像为数据源,利用RS和GIS技术,分析浙江省大陆岸线变迁及开发利用空间格局变化。结果表明:(1)浙江省大陆岸线变迁显著,岸线向海推进,总长度不断缩减,其中自然岸线长度缩减,人工岸线显著增加;(2)岸线平均分形维数为1.0922,2000年之前较稳定,其后持续下降,2015年降至1.086;(3)浙江省大陆岸线人工化指数上升,最显著的变化是大量基岩岸线转变为港口码头岸线,其中杭州湾北岸区、象山港岸区和椒江口岸区人工化程度最高;(4)杭州湾南岸区、三门湾岸区及瓯江口—沙埕港岸区岸线开发利用始终为单一主体结构,而象山港岸区为二元结构类型,其余岸区的开发利用主体类型结构呈现出不同类型的演化趋势;(5)岸线开发强度不断上升,由0.25升高至0.38,其中象山港岸区开发强度最大,2015年达到了0.53。
[Abstract]:Shoreline change analysis and exploitation of spatial pattern changes to strengthen the management of coastal resources, play an important role in coastal zone sustainable development. Based on TM/OLI remote sensing image 1990-2015 6 as the data source, using RS and GIS technology, analysis of Zhejiang province shoreline changes and development and utilization of spatial pattern changes. The results showed that: (1) Zhejiang province shoreline changes significantly, shoreline advancing to the sea, the total length of shrinking, the natural coastline length reduced, artificial shoreline increased significantly; (2) the average fractal dimension of coastline for 1.09222000 years before a relatively steady, then continued to decline, fell to 1.086 in 2015; (3) Zhejiang province shoreline artificialization index rise, change the most significant is the large number of bedrock shoreline into the port quay, the north shore of Hangzhou Bay area, the highest level of Xiangshan artificial port area and Jiaojiang port area; (4) the South Bank of Hangzhou Bay area, the Sanmen Bay The shore zone and Oujiang Estuary - Shacheng port shoreline development and utilization area is always a single subject structure, while the Xiangshan port area is two yuan more than the type of structure, the development and utilization of the main types of coastal areas showing the structure evolution tendency of different types; (5) shoreline development strength rising, increased from 0.25 to 0.38. The development of Xiangshan port area of greatest intensity, 2015 reached 0.53.

【作者单位】：宁波大学地理与空间信息技术系;浙江省海洋文化与经济研究中心;宁波大学学报编辑部;
【基金】：国家自然科学基金重点项目(U1609203);国家自然科学基金项目(41471004)
【分类号】：P737.1;P74
【正文快照】： 1引言海岸线作为沿海地区变化迅速的要素之一,具有独特的地理形态和动态特征,是描述海陆分界的重要边界线,也是海洋强国、海洋强省的起始线[1]。随着人类活动对海洋资源开发深度和力度持续加大,海岸带地区成为沿海经济发展的焦点。目前,运用多学科理论,进行海岸线的时空动态监

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