China's Major Landforms And Geological Disasters In The Space Fractal Dimension Of Their Relationships

Mandelbrot B.B. enunciated the uncertainty of the length of a coastline in his paper "How long is the coastline of British?" published in " Science" in 1967. The fractal concept was presented for the first time in that paper and has been applied to many fields ever since. The fractal dimensions of different geographical phenomena have been calculated by researchers, such as Mandelbrot (1967), Goodchild (1980), Phillips (1986), Qiu (1988), Turcotte (1992), Philip (1994), Andrle (1996), Paaret al. (1997), Jiang et al. (1998), Stomczynski (1999), Zhu et al (2000) . Till now, related references and further researches on the fractal mechanism of coastline are seldom seen. The controls of tectonic on the fractal character of different coastlines are preliminarily discussed in this paper with a case study of China. It may be useful to deepen the related study.In this thesis, some contents are studied as follows:(1) Fractal characters of China coastline, mountain ridges, faults are studies roundly, including the fractal demarcating of the length of continental coastline of China, the spatial change of fractal dimensions of coastline from north to south of China, spatial relations of fractal dimensions of China coastline, mountain ridges, faults, etc.(2)Fractal characters of China earthquakes, landslides and mud flow are studies roundly too, including the spatial relations of fractal dimensions of them, etc.(3) The fractal mechanism of China coastlines are discussed in different scales, including the pattern of the controlling effect of faults, crannies, etc.In a word, fractal characters of China main geomorphologic phenomena and geological disasters are studied in this paper, it is useful to deepen the related studies, and explore possible ways of geographical innovation of China.