地理研究 ›› 2017, Vol. 36 ›› Issue (6): 1159-1170.doi: 10.11821/dlyj201706013

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1990-2015年浙江省大陆岸线变迁与开发利用空间格局变化

叶梦姚1,2(), 李加林1,2(), 史小丽3, 姜忆湄1, 史作琦1, 徐谅慧1, 何改丽1, 黄日鹏1, 冯佰香1   

  1. 1. 宁波大学地理与空间信息技术系,宁波 315211
    2. 浙江省海洋文化与经济研究中心,宁波 315211
    3. 宁波大学学报编辑部,宁波 315211
  • 收稿日期:2017-02-10 修回日期:2017-04-16 出版日期:2017-06-30 发布日期:2017-07-18
  • 作者简介:

    作者简介:叶梦姚(1992- ),女,浙江余姚人,硕士,研究方向为海岸带环境与资源开发。 E-mail: yemengyao66@126.com

  • 基金资助:
    国家自然科学基金重点项目(U1609203);国家自然科学基金项目(41471004)

Spatial pattern change of the coastline development and utilization in Zhejiang from 1990 to 2015

Mengyao YE1(), Jialin LI1,2(), Xiaoli SHI3, Yimei JIANG1, Zuoqi SHI1, Lianghui XU1, Gaili HE1, Ripeng HUANG1, Baixiang FENG1   

  1. 1. Department of Geography & Spatial Information Technology, Ningbo University, Ningbo 315211, Zhejiang, China;
    2. Marine Culture and Economic Research Center of Zhejiang Province, Ningbo 315211, Zhejiang, China
    3. Editorial Department of Journal of Ningbo University, Ningbo 315211, Zhejiang, China
  • Received:2017-02-10 Revised:2017-04-16 Online:2017-06-30 Published:2017-07-18

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。

关键词: 大陆岸线, 岸线变迁, 空间格局, 海岸人工化, 浙江

Abstract:

Due to the intensive impacts of natural processes and anthropogenic activities, coastline changes have become one of the most important characteristics in coastal evolution. Detecting coastline changes and understanding the spatial patterns of human utilization are of great significance to provide knowledge for coastal resources management with sustainable development purposes. This study took six periods of remote sensing images from 1990 to 2015 as primary data sources for identifying coastlines, analyzing coastline changes, and recognizing the spatial patterns of the changes affected by human activities in Zhejiang Province. The results showed: (1) since 1990, the coastline changes in this province was significant; the total length of coastline, as well as the natural coastlines, was reduced; the coastlines constantly moved toward the sea and the artificial shorelines were significantly increased. (2) In the past 25 years, the whole coastline fractal dimension of Zhejiang is 1.0922; before 2000, the fractal dimension was relatively stable, then it showed a downward trend; in 2015, it reduced to 1.086. (3) During the last 25 years, the artificial index of Zhejiang's coastline has been rising; the transformation from the bedrock shoreline to port shoreline was the major changes; the artificial degree of the northern Hangzhou Bay, Xiangshan Harbor and Jiaojiang Port were the highest in the coastal areas. (4) during the study period, in 7 natural coastal areas of Zhejiang, the shoreline utilization structure of southern Hangzhou Bay, Sanmen Bay and Oujiang Estuary-Shacheng harbour maintained a single subject, the using type of Xiangshan Port District were dual structure, and the remaining areas showed different characteristics of evolution trend. (5) The shoreline development strength of Zhejiang presented a rising trend in the past 25 years; it rose from 0.25 in 1990 to 0.38 in 2015; the development and utilization of coastline strength of Xiangshan Harbor District is the largest among all harbors/bays; the strength index reached 0.53 in 2015.

Key words: mainland coastline, coastline change, spatial pattern, artificial coast, Zhejiang