Acta Geographica Sinica ›› 2011, Vol. 66 ›› Issue (3): 331-339.doi: 10.11821/xb201103005

Previous Articles     Next Articles

Scale Effects of China Mainland Coastline Based on Fractal Theory

GAO Yi1,2,3, SU Fenzhen1, ZHOU Chenghu1, YANG Xiaomei1, SUN Xiaoyu4, ZHANG Dandan1   

  1. 1. LREIS, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Yantai Institute of Coastal Zone Research, CAS, Yantai 264003, Shandong, China;
    3. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
    4. National Marine Environmental Forecasting Center, Beijing 100083, China
  • Received:2010-10-06 Revised:2010-12-15 Online:2011-03-20 Published:2011-03-20
  • Supported by:

    National Natural Science Foundation of China, No. 40571129;National High Technology Research and Development Program of China, No.2009AA12Z148; Marine Comprehensive Investigation and Assessment in China, No.908-ZC-I-08

Abstract: 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. (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.

Key words: China mainland, coastline, fractal dimension, uplift belt, subsidence belt, sandy coastline, muddy coastline, rocky coastline