海洋学研究 ›› 2017, Vol. 35 ›› Issue (1): 73-79.DOI: 10.3969/j.issn.1001-909X.2017.01.009

• 研究报道 • 上一篇    下一篇

基于GIS和洛伦兹曲线的辽宁省海岛空间分布特征探析

赵东洋, 雷利元, 尤广然, 刘明, 席小慧, 毕远溥*   

  1. 辽宁省海洋水产科学研究院, 辽宁 大连 116023
  • 收稿日期:2016-03-28 修回日期:2016-10-11 出版日期:2017-03-15 发布日期:2022-11-17
  • 通讯作者: * 毕远溥(1958-),男,研究员,主要从事海岛海岸带保护开发与可持续利用研究与管理。E-mail:byp98@163.com
  • 作者简介:赵东洋(1982-),男,辽宁大连市人,助理研究员,主要从事海域、海岛的开发与保护。E-mail:dongyang7@126.com
  • 基金资助:
    全国海域海岛地名普查辽宁专项项目资助;辽宁省海洋与渔业厅科研计划项目资助(201017)

Application of GIS and Lorenz Curve to study the spatial distribution characteristics of islands in Liaoning Province

ZHAO Dong-yang, LEI Li-yuan, YOU Guang-ran, LIU Ming, XI Xiao-hui, BI Yuan-pu*   

  1. Liaoning Ocean and Fisheries Science Research Institute,Dalian 116023, China
  • Received:2016-03-28 Revised:2016-10-11 Online:2017-03-15 Published:2022-11-17

摘要: 为合理开发利用和保护辽宁海岛资源,优化海岛产业结构和布局,以辽宁纳入中国海域海岛标准名录的633个海岛为研究对象,在对其地理坐标、陆域面积等基础数据进行数理统计的基础上,通过GIS的空间分析和绘制洛伦兹曲线、计算基尼系数,对辽宁海岛的空间分布特征进行了分析与研究。结果表明:辽宁海岛属集聚型分布类型,在空间上呈组团与带状分布,按聚集程度来看,形成了黄海北部长山群岛集聚区、辽东半岛南部浅海集聚带与辽东湾西部浅海集聚带三个区域;约60%的海岛处在离大陆岸线直线距离在10 km以内的范围内,近陆程度高;海岛陆域面积分布不均衡,基尼系数达0.9。

关键词: 辽宁海岛, 空间分布, 核密度估计法, 平均邻近距离法, 基尼系数

Abstract: In order to reasonably develop, utilize and protect islands' resources in Liaoning Province and optimize the industry structures and arrangements on islands, the spatial distribution characteristics of islands in Liaoning Province were investigated by application of GIS spatial analysis, Lorenz Curve and Gini Coefficient calculation based on the statistical data of 633 islands'coordinates and land areas, which have been listed in the Standard Directory of Islands in China Sea .The results show that the distribution type of islands in Liaoning Province belongs to aggregated distribution and presents group and zonal distribution in space. The islands of Liaoning Province have shaped Changshan Island aggregation district in the northern of the Yellow Sea and shallow sea aggregation zones in the southern of Liaoning Peninsula and in the western of Liaodong Gulf in terms of the levels of aggregation. Approximately 60% islands locate within the range of 10 km off the mainland coastline in straight line, leading to near the land at high degree. The land areas are imbalance among islands with the Gini Coefficient of 0.9.

Key words: islands in Liaoning, spatial distribution, Kernel Density Estimation, average nearest neighbor, Gini Coefficient

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