Study on Coastline Change of Guangxi in the Last 20 Years Based on RS and GIS

• 作者: He Dongyan Li Ning Lu Yuan
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 海岸线变迁 广西 GIS 地理信息系统平台 卫星遥感影像 海岸线长度 RS 土地面积
• 年，卷（期）: 2014,（4）
• 页码范围: 46-50
• 页数: 5页
• 分类号: P731.23

摘要

By using three different satellite remote sensing images,Guangxi coastline was extracted on the platforms of RS and GIS,and its change characteristics from 1990 to 2010 were studied. The results showed that the length of Guangxi coastline generally decreased in the last 20years; the total reduction length was 118. 50 km,and the reduction range of coastline from 2000 to 2010 was significantly more than that from 1990to 2000. With the development of coastal mariculture and the construction of port terminals,the changes of coastline length in Fangchenggang and Qinzhou were larger. The total newly added land area was 136. 81 km2,and the newly added land area in the last10 years was greater than that in the first 10 years. The total fractal dimension of coastline presented decreasing trend; the curvature of coastline gradually decreased; the coastline will be straighter.