热带地理 ›› 2015, Vol. 35 ›› Issue (5): 739-744.doi: 10.13284/j.cnki.rddl.002749

• 论文 • 上一篇    下一篇

被越南侵占的中国南沙群岛岛礁的时空分布特征及战略格局

唐 盟   

  1. (南京大学 中国南海研究协同创新中心 南海环境资源与海疆权益研究平台,江苏 南京210093 )
  • 出版日期:2015-09-30 发布日期:2015-09-30

Spatial Distribution Characteristic and Strategic Situation of the Islands and Reefs Invaded by Vietnam in the Chinese Nansha Islands

TANG Meng   

  1. (Platform for Study on Ocean Environment-Resources and Maritime Rights,China Centre for Collaborative Innovation of the South China Sea Studies,Nanjing University,Nanjing 210093,China)
  • Online:2015-09-30 Published:2015-09-30

摘要:

以南海海域200 m等深线水深图和南沙群岛海域11幅1﹕250 000海图以及1﹕800 000海图为基础数据,使用ArcGIS 10.1,采用墨卡托投影,CGCS 2000坐标系对海图进行配准并进行矢量化处理,提取图中水深点、岛礁位置信息、礁坪、礁体位置信息。通过对被越南侵占的南沙群岛29座岛礁的空间分析,认为被占岛礁在空间上存在“一纵一横”的空间分布特征,南沙群岛被占岛礁南子岛、景宏岛、南威岛、六门礁从N至W构成了4个核心和广雅滩1个次核心的岛礁空间分布战略格局。通过对被占岛礁面积、礁坪面积及礁体面积进行插值处理,叠加分析,按重分类方法将插值结果按数值大小划分为5类,予以揭示被占岛礁的重要程度及未来开发潜力。通过分析越南侵占岛礁的岛屿面积与礁体面积比值,指出鸿庥岛、景宏岛、西礁、中礁、毕生礁、六门礁、柏礁有较大填海造陆潜力的岛礁。

关键词: 南沙群岛, 岛礁, 战略格局, 越南, 中国

Abstract:

In this paper, an isobath bathygram (200 m interval) of the South China Sea and 11 sea charts (Scale 1﹕250 000, 1﹕800 000) of the Chinese Nansha Islands were vectorized to extract the information of depth, area and locations of the islands and reefs by using Mercator projection and CGCS 2000 coordinates with ArcGIS 10.1. It comes to the conclusion that the islands and reefs invaded by Vietnam in the Chinese Nansha Islands concentrate in two lines (one is Vertical, the other is Horizontal). Nánzǐ Dǎo (The Southwest Cay in Western sea charts), Jǐnghóng Dǎo (Sin Cowe Island), Nánwēi Dǎo (Spratly Island, Storm Island), Lìumén Jiāo (Alison Reef and Prince of Wales Bank) constitute a pattern of four primary cores and one secondary core from north to south. The islands and reefs were classified into 5 types according to their area sizes. Overlaying and reclassificating analysis was made on the acreage of the islands and reefs invaded by Vietnam in Chinese Nansha Islands. It reveals that seven islands and reefs would have more potential for land reclamation. Those are: Hóngxīu Dǎo (Namyit Island), Jǐnghóng Dǎo (Sin Cowe Island), Xī Jiāo (West Reef), Zhōng Jiāo (Central Reef), Bìshēng Jiāo (Pearson Reef), Lìumén Jīao (Alison Reef and Prince of Wales Bank) and Bó jiāo (Barque Canada Reef).

Key words: Chinese Nansha Islands, islands and reefs, Pattern of spatial strategic situation, Vietnam, China