Research on the Shoreline Morphological Characteristics of the Drawdown Zone of Three Gorges Reservoir Based on Fractal Theory
Taking the shoreline of the drawdown zone as the basic data,the grid method was used to cal-culate the fractal dimensions of different water levels and sections of the shoreline,and its distribution char-acteristics and spatial distribution rules were studied.The results show that:(1)The fractal dimension values D of the overall shape of the 145 m water level shoreline,175 m water level and the leveling zone are 1.199 6,1.321 6,1.319 2 respectively;(2)The 145 m water level in the leveling zone is relative to the 175 m water level and the leveling zone.In terms of the overall shape,it is relatively straight and simple,consistent with the actual situation of the coastline;(3)The overall mean value of the fractal dimension value of the grid cells in the ebb and flow zone is 1.24,and the maximum value is 1.40,mainly distributed between 1.05～1.3.
Three Gorges Reservoirthe drawdown zoneShoreline FormFractal Dimension
万方数据
维普
