基于GIS和洛伦兹曲线的辽宁省海岛空间分布特征探析

发布时间：2018-01-12 02:28

本文关键词：基于GIS和洛伦兹曲线的辽宁省海岛空间分布特征探析　出处：《海洋学研究》2017年01期 　论文类型：期刊论文

【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10km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。
[Abstract]:In order to rationally exploit and protect the island resources in Liaoning and optimize the industrial structure and layout of the islands, the geographical coordinates of the 633 islands included in the standard list of islands in the sea area of China were studied. Based on the mathematical statistics of the land area and other basic data, the Gini coefficient is calculated through the spatial analysis of GIS and the drawing of Lorentz curve. The spatial distribution characteristics of the islands in Liaoning are analyzed and studied. The results show that the islands in Liaoning belong to the type of agglomeration distribution, which are organized and banded in space, according to the degree of agglomeration. There are three regions, namely, Changshan archipelago agglomeration area in northern part of Huang Hai, shallow sea agglomeration zone in the south of Liaodong Peninsula and shallow sea agglomeration zone in western Liaodong Bay. About 60% of the islands are within 10 km from the continental shoreline, and the land level is high. The land area distribution of the island is not balanced, and the Gini coefficient is 0.9.
【作者单位】：辽宁省海洋水产科学研究院;
【基金】：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)
【分类号】：P74
【正文快照】： 0引言辽宁是我国的海洋大省,濒临黄海和渤海,地处我国万里海疆最北端,以鸭绿江为界与朝鲜半岛相望。大陆岸线东起鸭绿江口,西止辽冀海岸分界线,长约2 110km,海域(大陆架)面积约15×104 km2,近海水域面积近4×104 km21。在广袤的海域中,星罗棋布、大小不一地分布着633个海岛,岛

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