台湾山脉地形演育的测高曲线与高程频率分布形态-台湾大学地理环境.PDFVIP

79-94 (2008) 79 JOURNAL OF GEOGRAPHICAL SCIENCE (54) : 79-94 (2008) Features of Hypsometric Curve and Elevation Frequency Histogram of Mountain Topography Evolution in Taiwan * Yen-Chieh Chen Abstract The hypsometric curve and elevation frequency histogram of river basins can reflect evolution of topography and abundance distribution of land residual in river basins. In the central ranges of Taiwan orogenic belt, the hypsometric curves are S-type and the elevation frequency histograms are proved to be a normal distribution by χ2-test. Both results show that the uplifting and denudation in the area should reach the culminating stage defined by Ohmori ( 1993). In the coastal ranges, the HI values of basins are low, the hypsometric curves are concave type, and the elevation frequency concentrates in low elevations. Summarizing the conclusions above, we find that in the Taiwan orogenic belt, the variation of hypsometric curves of mountain topography shows an Ohmori cycle and the elevation frequency histograms will finally evolve into a normal distribution. Keywords: steady-state range, morphotectonic index, hypsometric curve, 2 elevation frequency histogram, x -test. * 理理理 Assistant Professor, Department of Tourism Management, Chia-Nan University of Pharmacy and Science. 80