环印度洋区域国家地缘经济格局分析
袁丽华, 陈小强, 宋长青, 程昌秀, 沈石

Spatio-temporal patterns of geo-economics of the countries in the Indian Ocean Region: Based on merchandise trade volume data from 1992 to 2017
YUAN Lihua, CHEN Xiaoqiang, SONG Changqing, CHENG Changxiu, SHEN Shi
图1 环印度洋区域49国空间分布图
注:基于自然资源部标准地图服务网站审图号为GS(2016)1666号的标准地图制作,底图无修改。
Fig. 1 Spatial distribution of the 49 countries in the Indian Ocean Region (IOR)