Scale Effects of China
详细信息
- 责任者：Gao Yi (LREIS ; Institute of Geographic Sciences and Natural Resources Research ; CAS ; Beijing 100101 ; China) ; Su Fenzhen
- 刊名：Acta Geographica Sinica
- 出版年：2011
- 卷期：66(3)
- 关键词：海岸线 ; coastlines ; 中国 ; China
- 页码：p.331-339
- 图表：5 illus., 2 tables, 23 refs.
- 分类号：0200
- issnNo：ISSN0375-5444
- isbnNo：CN11-1856/P
摘要
Based on DEM and remote sensing images, multi-scale coastlines of China mainland were extracted and the fractal characteristics of coastlines were analyzed. The results are shown as follows: 1) the coastline of China mainland fits the fractal model,and the fractal dimension is 1.195; 2) the scale effect with fractal dimensions of coastline has significant differences in light of uplift and subsidence segments along the coast of China mainland; 3) the fractal numbers of coastline dimension have significant spatial heterogeneity in the coastline types. The number of fractal dimension in sandy coastline located in the Luanhe River plain is 1.109, for the muddy coastline located in northern Jiangsu Plain, 1.059, and for rocky coastline along southeastern Fujian mountains, 1.293; and 4) the length of rocky coastline is affected more by scale effect than that of muddy and sandy coastline. Since coastline is the conjunction of sea, land and atmosphere surface, the study of coastline scale effect is one of the scientific bases for the research on air-sea-land interaction in multi-scales.