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 20 years; the total reduction length was 118.50 km, and the reduction range of coastline from 2000 to 2010 was significantly more than that from 1990 to 2000. With the development of coastal madculture 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 last 10 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.
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 20 years; the total reduction length was 118.50 km, and the reduction range of coastline from 2000 to 2010 was significantly more than that from 1990 to 2000. With the development of coastal madculture 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 last 10 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.
基金
Supported by Guangxi Natural Science Foundation,China
Key Item of Science Technology Research,Ministry of Education,China(210167)
